/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    max-width: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Container Layout */
.container {
    display: flex;
    min-height: 100vh;
    position: relative;
    width: 100%;
    overflow-x: hidden;
    max-width: 100vw;
}

/* Ensure proper viewport handling */
html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100vw;
}



/* Sidebar Styles */
.sidebar {
    width: 300px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: transform 0.3s ease;
    z-index: 1000;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-toggle {
    display: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.75rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
    display: flex;
    touch-action: manipulation;
}

.sidebar-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.sidebar-toggle.active {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    transform: scale(1.1);
}

.sidebar-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.2s;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-close:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Navigation Menu */
.nav-menu {
    list-style: none;
    padding: 1rem 0;
}

.nav-menu li {
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background-color: rgba(255,255,255,0.1);
    color: white;
    border-left-color: #fff;
}

.nav-link.active {
    background-color: rgba(255,255,255,0.15);
    color: white;
    border-left-color: #fff;
}

.nav-link i {
    width: 16px;
    text-align: center;
}

/* Navigation Section Styles */
.nav-section {
    position: relative;
}

.nav-section > .nav-link {
    position: relative;
    cursor: pointer;
    padding-right: 3rem; /* Make room for chevron */
}

.nav-section > .nav-link::after {
    content: '\f078'; /* FontAwesome chevron-down */
    font-family: 'Font Awesome 6 Free', 'Font Awesome 5 Free', 'FontAwesome';
    font-weight: 900;
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    transition: transform 0.3s ease, color 0.2s ease;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
    pointer-events: none;
}

.nav-section.expanded > .nav-link::after {
    transform: translateY(-50%) rotate(180deg);
    color: rgba(255,255,255,0.9);
}

.nav-section > .nav-link:hover::after {
    color: rgba(255,255,255,1);
}

/* Submenu Styles */
.submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    margin-left: 2rem;
    border-left: 1px solid rgba(255,255,255,0.2);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease,
                padding 0.3s ease;
    opacity: 0;
}

.nav-section.expanded .submenu {
    max-height: 600px; /* Increased for more content */
    opacity: 1;
    padding: 0.25rem 0;
}

.submenu .nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    opacity: 0.8;
    margin-left: 1rem;
    border-left: none;
    position: relative;
}

.submenu .nav-link:hover {
    opacity: 1;
    background-color: rgba(255,255,255,0.08);
}

.submenu .nav-link.active {
    opacity: 1;
    background-color: rgba(255,255,255,0.12);
    border-left-color: rgba(255,255,255,0.8);
}

/* Smooth animation for submenu items */
.nav-section:not(.expanded) .submenu .nav-link {
    transform: translateY(-10px);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-section.expanded .submenu .nav-link {
    transform: translateY(0);
    transition: transform 0.3s ease 0.1s, opacity 0.3s ease 0.1s;
}

/* Mobile responsive adjustments for collapsible navigation */
@media (max-width: 768px) {
    .nav-section > .nav-link {
        padding-right: 3.5rem; /* More space for chevron on mobile */
    }

    .nav-section > .nav-link::after {
        right: 1rem; /* Closer to edge on mobile */
        font-size: 0.9rem; /* Slightly larger for touch */
    }

    .submenu {
        margin-left: 1.5rem; /* Less indentation on mobile */
    }

    .submenu .nav-link {
        margin-left: 0.5rem;
        padding: 0.6rem 1rem; /* Slightly larger touch targets */
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .nav-section > .nav-link::after {
        color: rgba(255,255,255,1);
    }

    .submenu {
        border-left-color: rgba(255,255,255,0.5);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .nav-section > .nav-link::after,
    .submenu,
    .nav-section:not(.expanded) .submenu .nav-link,
    .nav-section.expanded .submenu .nav-link {
        transition: none;
    }

    .nav-section.expanded .submenu {
        max-height: none;
    }
}

/* Multimedia Content Styles */
.screenshot-section {
    margin: 2rem 0;
    background: #f8f9fa;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #e9ecef;
}

.screenshot-section h3 {
    color: #495057;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.screenshot-section h3 i {
    color: #007bff;
}

.screenshot-container {
    position: relative;
    text-align: center;
}

.screenshot-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.screenshot-image:hover {
    transform: scale(1.02);
}

.image-placeholder {
    background: #e9ecef;
    border: 2px dashed #adb5bd;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    color: #6c757d;
}

.image-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.screenshot-caption {
    margin-top: 1rem;
    color: #6c757d;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Video Section Styles */
.video-section {
    margin: 2rem 0;
    background: linear-gradient(135deg, #ff0000 0%, #cc0000 100%);
    border-radius: 12px;
    padding: 1.5rem;
    color: white;
}

.video-section h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.video-section h3 i {
    color: #ffcccc;
}

.video-container {
    position: relative;
}

/* Responsive video wrapper for iframe embedding */
.video-wrapper {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background: rgba(0,0,0,0.3);
    border-radius: 8px;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

/* Video error state */
.video-error {
    background: rgba(0,0,0,0.3);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    color: rgba(255,255,255,0.8);
}

.video-error i {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: block;
    color: #ffcccc;
}

.video-error p {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.video-error a {
    color: #ffcccc;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid #ffcccc;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.video-error a:hover {
    background: #ffcccc;
    color: #cc0000;
}

.video-caption {
    margin-top: 1rem;
    color: rgba(255,255,255,0.9);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Mobile responsive multimedia */
@media (max-width: 768px) {
    .screenshot-section,
    .video-section {
        margin: 1.5rem 0;
        padding: 1rem;
    }

    .video-wrapper {
        padding-bottom: 56.25%; /* Maintain 16:9 aspect ratio on mobile */
    }

    .video-error {
        padding: 1.5rem;
    }

    .video-error i {
        font-size: 1.5rem;
    }

    .video-error a {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 300px;
    background: white;
    min-height: 100vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
}

/* Section Styles */
.section {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e9ecef;
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.section:last-child {
    border-bottom: none;
}

.section h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #34495e;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 1.5rem 0 1rem 0;
}

.lead {
    font-size: 1.25rem;
    color: #6c757d;
    margin-bottom: 2rem;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: white;
}

/* Requirements Grid */
.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.requirement-card {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    transition: box-shadow 0.2s ease;
}

.requirement-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.requirement-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.requirement-card ul {
    list-style: none;
    padding-left: 0;
}

.requirement-card li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.requirement-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

/* Checklist */
.checklist {
    list-style: none;
    padding-left: 0;
}

.checklist li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 2rem;
}

.checklist li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
    font-size: 1.2rem;
}

/* Installation Steps */
.installation-steps {
    margin: 1.5rem 0;
}

.step {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.step h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

/* Code Blocks */
.code-block {
    background: #2d3748;
    border-radius: 8px;
    overflow: hidden;
    margin: 1rem 0;
    position: relative;
    max-width: 100%;
}

.code-block pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
}

.code-block code {
    color: #e2e8f0;
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.9rem;
}

/* Alert Boxes */
.note, .warning, .tip {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.note {
    background-color: #e3f2fd;
    border: 1px solid #2196f3;
    color: #1565c0;
}

.warning {
    background-color: #fff3e0;
    border: 1px solid #ff9800;
    color: #e65100;
}

.tip {
    background-color: #e8f5e8;
    border: 1px solid #4caf50;
    color: #2e7d32;
}

.note i, .warning i, .tip i {
    font-size: 1.2rem;
    margin-top: 0.1rem;
}

/* Responsive Design */

/* Large Tablets and Small Desktops */
@media (max-width: 1024px) {
    .sidebar {
        width: 280px;
    }
    
    .main-content {
        margin-left: 280px;
    }
    
    .content-wrapper {
        padding: 1.5rem;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .requirements-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .support-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    /* Show hamburger menu on tablets */
    .sidebar-toggle {
        display: flex;
        opacity: 1;
        visibility: visible;
        transform: scale(1);
    }
}

/* Tablets */
@media (max-width: 768px) {
    .sidebar {
        width: 280px;
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-toggle {
        display: flex !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: scale(1) !important;
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .content-wrapper {
        padding: 1rem;
        min-height: auto;
    }
    
    .section h1 {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .section h2 {
        font-size: 1.5rem;
        margin-bottom: 0.75rem;
    }
    
    .section h3 {
        font-size: 1.25rem;
        margin-bottom: 0.5rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .code-block {
        margin: 1rem 0;
    }
    
    .code-block pre {
        font-size: 0.9rem;
        padding: 1rem;
    }
    
    .note, .warning, .tip {
        margin: 1rem 0;
        padding: 1rem;
    }
    
    .step {
        margin: 1.5rem 0;
        padding: 1rem;
    }
    
    .faq-item {
        margin: 1rem 0;
        padding: 1rem;
    }
    
    .support-card {
        padding: 1rem;
    }
}

/* Mobile Phones */
@media (max-width: 480px) {
    .container {
        flex-direction: column;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .sidebar {
        width: 100%;
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    /* Add overlay when sidebar is active */
    .sidebar.active::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: -1;
    }
    
    .sidebar-toggle {
        top: 0.75rem;
        left: 0.75rem;
        display: flex !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: scale(1) !important;
    }
    
    .sidebar-header {
        padding: 1rem;
    }
    
    .sidebar-header h2 {
        font-size: 1.25rem;
    }
    
    .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
    }
    
    .submenu .nav-link {
        padding: 0.5rem 1rem 0.5rem 2rem;
        font-size: 0.9rem;
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
        max-width: 100vw;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        position: relative;
        flex: 1;
    }
    
    .content-wrapper {
        padding: 0.75rem;
        min-height: auto;
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }
    
    .section h1 {
        font-size: 1.75rem;
        margin-bottom: 0.75rem;
    }
    
    .section h2 {
        font-size: 1.4rem;
        margin-bottom: 0.5rem;
    }
    
    .section h3 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
    }
    
    .lead {
        font-size: 1rem;
        margin-bottom: 1rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .feature-card {
        padding: 1rem;
    }
    
    .feature-card h3 {
        font-size: 1.1rem;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .requirement-card {
        padding: 1rem;
    }
    
    .requirement-card h3 {
        font-size: 1.1rem;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .support-card {
        padding: 1rem;
    }
    
    .support-card h3 {
        font-size: 1.1rem;
    }
    
    .code-block {
        margin: 0.75rem 0;
    }
    
    .code-block pre {
        font-size: 0.85rem;
        padding: 0.75rem;
        overflow-x: auto;
    }
    
    .note, .warning, .tip {
        margin: 0.75rem 0;
        padding: 0.75rem;
        font-size: 0.95rem;
    }
    
    .step {
        margin: 1rem 0;
        padding: 0.75rem;
    }
    
    .step h3 {
        font-size: 1.1rem;
    }
    
    .faq-item {
        margin: 0.75rem 0;
        padding: 0.75rem;
    }
    
    .faq-item h3 {
        font-size: 1.1rem;
    }
    
    .faq-item p {
        font-size: 0.95rem;
    }
    
    .loading-indicator {
        min-height: 300px;
    }
    
    .loading-indicator p {
        font-size: 1rem;
    }
    
    .section-loading {
        min-height: 150px;
        padding: 1rem;
    }
    
    .section-loading p {
        font-size: 0.95rem;
    }
}

/* Extra Small Mobile Phones */
@media (max-width: 360px) {
    .main-content {
        width: 100%;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .content-wrapper {
        padding: 0.5rem;
        width: 100%;
        min-height: auto;
    }
    
    .sidebar-toggle {
        top: 0.5rem;
        left: 0.5rem;
        min-width: 40px;
        min-height: 40px;
        padding: 0.5rem;
        display: flex !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: scale(1) !important;
    }
    
    .section h1 {
        font-size: 1.5rem;
    }
    
    .section h2 {
        font-size: 1.3rem;
    }
    
    .section h3 {
        font-size: 1.1rem;
    }
    
    .lead {
        font-size: 0.95rem;
    }
    
    .feature-card, .requirement-card, .support-card {
        padding: 0.75rem;
    }
    
    .code-block pre {
        font-size: 0.8rem;
        padding: 0.5rem;
    }
    
    .note, .warning, .tip {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    .step {
        padding: 0.5rem;
    }
    
    .faq-item {
        padding: 0.5rem;
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .sidebar {
        width: 300px;
    }
    
    .main-content {
        width: 100%;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .content-wrapper {
        padding: 1rem 1.5rem;
        width: 100%;
        min-height: auto;
    }
    
    .loading-indicator {
        min-height: 250px;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .spinner {
        border-width: 3px;
    }
    
    .section-loading .spinner {
        border-width: 3px;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .spinner {
        animation: none;
    }
}

/* Section Navigation */
.section-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 3rem 0 2rem 0;
    padding: 2rem 0;
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
}

.nav-button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    min-width: 200px;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.nav-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.nav-button:hover::before {
    left: 100%;
}

.nav-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    color: white;
    text-decoration: none;
}

.nav-button:active {
    transform: translateY(-1px);
}

.nav-button.prev {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    flex-direction: row;
}

.nav-button.prev:hover {
    box-shadow: 0 6px 20px rgba(108, 117, 125, 0.4);
}

.nav-button.next {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    flex-direction: row-reverse;
}

.nav-button.next:hover {
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.nav-button.disabled {
    background: #e9ecef;
    color: #6c757d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.nav-button.disabled:hover {
    transform: none;
    box-shadow: none;
}

.nav-button.disabled::before {
    display: none;
}

.nav-button i {
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.nav-button:hover i {
    transform: scale(1.2);
}

.nav-button.prev:hover i {
    transform: translateX(-3px) scale(1.2);
}

.nav-button.next:hover i {
    transform: translateX(3px) scale(1.2);
}

.nav-button .nav-text {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.nav-button .section-title {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.95;
    margin: 0 0.5rem;
    text-align: center;
    flex: 1;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Current section indicator */
.section-navigation .current-section {
    text-align: center;
    color: #6c757d;
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0 1rem;
    padding: 0.5rem 1rem;
    background: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

@media (max-width: 768px) {
    .section-navigation .current-section {
        order: -1;
        margin: 0 0 1rem 0;
        width: 100%;
    }
}

/* Mobile responsive navigation */
@media (max-width: 768px) {
    .section-navigation {
        flex-direction: column;
        gap: 1rem;
        margin: 2rem 0 1rem 0;
        padding: 1.5rem 0;
    }
    
    .nav-button {
        width: 100%;
        min-width: auto;
        padding: 1rem 1.5rem;
        font-size: 1rem;
        flex-direction: row !important;
    }
    
    .nav-button.next {
        flex-direction: row !important;
    }
    
    .nav-button .section-title {
        flex: 1;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section-navigation {
        margin: 1.5rem 0 1rem 0;
        padding: 1rem 0;
    }
    
    .nav-button {
        padding: 0.875rem 1.25rem;
        font-size: 0.95rem;
        gap: 0.5rem;
    }
    
    .nav-button .section-title {
        font-size: 0.85rem;
        flex: 1;
    }
    
    .nav-button .nav-text {
        font-size: 0.8rem;
    }
    
    .nav-button i {
        font-size: 1rem;
    }
}

/* Screenshots and Videos */
.screenshot-section {
    margin: 2rem 0;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 12px;
    border: 1px solid #e9ecef;
}

.screenshot-section h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.screenshot-section h3 i {
    color: #667eea;
}

.screenshot-container {
    position: relative;
    margin: 1rem 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    background: white;
}

.screenshot-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.screenshot-container:hover .screenshot-image {
    transform: scale(1.02);
}

.screenshot-caption {
    padding: 1rem;
    background: white;
    border-top: 1px solid #e9ecef;
    font-size: 0.9rem;
    color: #6c757d;
    text-align: center;
    font-style: italic;
}

.video-section {
    margin: 2rem 0;
    padding: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: white;
}

.video-section h3 {
    color: white;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.video-section h3 i {
    color: #ff0000;
}

.video-container {
    position: relative;
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    background: #000;
}

.video-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(45deg, #2c3e50, #34495e);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.video-placeholder:hover {
    background: linear-gradient(45deg, #34495e, #2c3e50);
    transform: scale(1.02);
}

.video-placeholder::before {
    content: '▶';
    font-size: 3rem;
    color: #ff0000;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    transition: all 0.3s ease;
}

.video-placeholder:hover::before {
    transform: scale(1.2);
    color: #fff;
}

.video-caption {
    padding: 1rem;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    font-size: 0.9rem;
    text-align: center;
    font-style: italic;
    border-top: 1px solid rgba(255,255,255,0.2);
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.media-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.media-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.media-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.media-item .media-caption {
    padding: 1rem;
    font-size: 0.9rem;
    color: #6c757d;
    text-align: center;
}

/* Mobile responsive media */
@media (max-width: 768px) {
    .screenshot-section,
    .video-section {
        padding: 1rem;
        margin: 1.5rem 0;
    }
    
    .media-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .video-placeholder {
        font-size: 1rem;
    }
    
    .video-placeholder::before {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .screenshot-section,
    .video-section {
        padding: 0.75rem;
        margin: 1rem 0;
    }
    
    .screenshot-caption,
    .video-caption {
        padding: 0.75rem;
        font-size: 0.85rem;
    }
}

/* Print Styles */
@media print {
    .sidebar {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-wrapper {
        padding: 0;
    }
    
    .section {
        page-break-inside: avoid;
    }
    
    .code-block {
        background: #f8f9fa;
        border: 1px solid #dee2e6;
    }
    
    .code-block code {
        color: #333;
    }
    
    .section-navigation {
        display: none;
    }
    
    .screenshot-section,
    .video-section {
        background: white;
        border: 1px solid #dee2e6;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

/* Active Section Highlighting */
.section:target {
    animation: highlight 2s ease-out;
}

@keyframes highlight {
    0% { background-color: rgba(102, 126, 234, 0.1); }
    100% { background-color: transparent; }
}

/* Loading Animation */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Loading Indicator */
.loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
    width: 100%;
    max-width: 100%;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-indicator p {
    color: #6c757d;
    font-size: 1.1rem;
}

/* Section Loading Indicator */
.section-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    text-align: center;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    margin: 1rem 0;
    padding: 2rem;
}

.section-loading .spinner {
    width: 30px;
    height: 30px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

.section-loading p {
    color: #6c757d;
    font-size: 0.9rem;
    margin: 0;
}

/* FAQ Items */
.faq-item {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: box-shadow 0.2s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.faq-item h3 {
    color: #2c3e50;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.faq-item p {
    color: #6c757d;
    line-height: 1.6;
}

/* Support Grid */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.support-card {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    transition: box-shadow 0.2s ease;
}

.support-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.support-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.support-card ul {
    list-style: none;
    padding-left: 0;
}

.support-card li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.support-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* Credits Section */
.credits {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 0;
}

.credits h3 {
    color: white;
    margin-bottom: 1rem;
}

.credits ul {
    list-style: none;
    padding-left: 0;
    margin: 1rem 0;
}

.credits li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.credits li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #4ade80;
    font-weight: bold;
}

/* Scrollbar Styling */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255,255,255,0.1);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.3);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.5);
}

/* Additional Styles for Enhanced Documentation */

/* Requirements Grid */
.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.requirement-card {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.requirement-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.requirement-card i {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.requirement-card h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

/* API Documentation Styles */
.api-section {
    margin: 2rem 0;
}

.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.api-card {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    transition: box-shadow 0.2s ease;
}

.api-card:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.api-card .method {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    margin-right: 0.5rem;
}

.method.get {
    background: #d4edda;
    color: #155724;
}

.method.post {
    background: #cce5ff;
    color: #004085;
}

.method.put {
    background: #fff3cd;
    color: #856404;
}

.method.delete {
    background: #f8d7da;
    color: #721c24;
}

.api-card code {
    background: #e9ecef;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

/* Project Structure Styles */
.project-structure {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.project-card {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    transition: transform 0.2s ease;
}

.project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.project-card i {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.project-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.project-card ul {
    list-style: none;
    padding-left: 0;
}

.project-card li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.project-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* Verification Checklist */
.verification-checklist {
    margin: 2rem 0;
}

.checklist {
    display: grid;
    gap: 0.5rem;
    margin: 1rem 0;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: #f8f9fa;
    border-radius: 4px;
}

.check-item i {
    color: #28a745;
}

/* Table Grid for Database Tables */
.table-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.table-card {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
}

.table-card h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.table-card ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.table-card li {
    padding: 0.25rem 0;
    font-size: 0.875rem;
    color: #6c757d;
}

/* Seeded Data Cards */
.seeded-data {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.data-card {
    background: #e8f4fd;
    border: 1px solid #b8daff;
    border-radius: 8px;
    padding: 1rem;
}

.data-card h5 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #004085;
    margin-bottom: 0.5rem;
}

.data-card p {
    margin: 0.25rem 0;
    font-size: 0.875rem;
}

/* Verification Grid */
.verification-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.check-item {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}

.check-item i {
    font-size: 1.5rem;
    color: #28a745;
    margin-bottom: 0.5rem;
}

.check-item h5 {
    color: #155724;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.check-item p {
    color: #155724;
    font-size: 0.75rem;
    margin: 0;
}

/* Configuration Steps */
.config-steps {
    margin: 1.5rem 0;
}

.config-step {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
}

.config-step h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.config-step ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.config-step li {
    margin: 0.25rem 0;
}

/* Steps List */
.steps-list ol {
    padding-left: 1.5rem;
    margin: 1rem 0;
}

.steps-list li {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.steps-list ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

/* Troubleshooting Section */
.troubleshooting {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.issue {
    margin: 1rem 0;
    padding: 1rem;
    background: #ffffff;
    border-radius: 6px;
    border-left: 4px solid #ffc107;
}

.issue h5 {
    color: #856404;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.issue p {
    margin: 0;
    color: #856404;
}

/* Deployment Overview Styles */
.deployment-overview {
    margin: 2rem 0;
}

.architecture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.arch-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.arch-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.arch-card i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.arch-card h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.arch-card p {
    color: #6c757d;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.arch-card ul {
    list-style: none;
    padding-left: 0;
    text-align: left;
}

.arch-card li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.85rem;
    color: #495057;
}

.arch-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

/* Domain Configuration Styles */
.domain-config {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.domain-option {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
}

.domain-option h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.domain-option p {
    margin-bottom: 1rem;
    color: #6c757d;
}

/* Domain Structure */
.domain-structure {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.domain-card {
    background: #e8f4fd;
    border: 1px solid #b8daff;
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}

.domain-card h5 {
    color: #004085;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.domain-card p {
    margin: 0.25rem 0;
    font-size: 0.875rem;
}

.domain-card p:first-of-type {
    font-weight: bold;
    color: #0056b3;
    font-family: 'Courier New', monospace;
}

/* Responsive Design Improvements */
@media (max-width: 768px) {
    .requirements-grid,
    .architecture-grid,
    .domain-config,
    .domain-structure {
        grid-template-columns: 1fr;
    }

    .api-grid,
    .project-structure,
    .table-grid,
    .seeded-data,
    .verification-grid {
        grid-template-columns: 1fr;
    }

    .arch-card,
    .requirement-card,
    .project-card {
        text-align: center;
    }

    .config-steps,
    .domain-option {
        margin: 1rem 0;
    }
}

/* FAQ Categories and Troubleshooting */
.troubleshooting-categories {
    margin: 2rem 0;
}

.category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 1rem;
}

.category-btn {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.category-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.category-btn.active {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

.faq-category {
    margin: 2rem 0;
}

.faq-category h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #667eea;
}

.faq-item {
    background: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    margin: 1.5rem 0;
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.faq-item:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.faq-item h4 {
    background: #f8f9fa;
    color: #2c3e50;
    margin: 0;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid #e9ecef;
    font-size: 1rem;
}

.faq-item h4 i {
    color: #dc3545;
}

.faq-content {
    padding: 1.5rem;
}

.faq-content p {
    margin-bottom: 1rem;
}

.faq-content ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.faq-content li {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.faq-content strong {
    color: #2c3e50;
}

/* General Tips Section */
.general-tips {
    margin: 3rem 0;
    padding: 2rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
}

.general-tips h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.tip-card {
    background: #ffffff;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tip-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.tip-card i {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.tip-card h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.tip-card p {
    color: #6c757d;
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
}

/* Mobile responsiveness for FAQ */
@media (max-width: 768px) {
    .category-nav {
        flex-direction: column;
    }

    .category-btn {
        text-align: center;
    }

    .tip-grid {
        grid-template-columns: 1fr;
    }

    .faq-item h4 {
        font-size: 0.9rem;
        padding: 0.75rem 1rem;
    }

    .faq-content {
        padding: 1rem;
    }
}

/* Introduction Section Styles */
.overview-section {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 0;
    border-left: 4px solid #667eea;
}

.overview-section h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.overview-section p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.key-features {
    margin: 3rem 0;
}

.key-features h2 {
    color: #2c3e50;
    margin-bottom: 2rem;
    text-align: center;
    font-size: 1.8rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
}

.feature-item i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.feature-item h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.feature-item p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
}

.platform-support {
    margin: 3rem 0;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
}

.platform-support h2 {
    color: #2c3e50;
    margin-bottom: 2rem;
    text-align: center;
    font-size: 1.8rem;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.platform-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.platform-card:hover {
    transform: translateY(-3px);
}

.platform-card i {
    font-size: 3rem;
    color: #764ba2;
    margin-bottom: 1rem;
}

.platform-card h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.platform-card p {
    color: #666;
    font-size: 0.95rem;
}

.technology-stack {
    margin: 3rem 0;
    text-align: center;
}

.technology-stack h2 {
    color: #2c3e50;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.tech-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 2rem;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    min-width: 120px;
    transition: transform 0.3s ease;
}

.tech-item:hover {
    transform: scale(1.05);
}

.tech-item i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.tech-item span {
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.9rem;
}

.saas-benefits {
    margin: 3rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
}

.saas-benefits h2 {
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    text-align: center;
}

.benefits-list {
    list-style: none;
    padding: 0;
}

.benefits-list li {
    padding: 0.8rem 0;
    font-size: 1.1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.benefits-list li i {
    color: #4ade80;
    font-size: 1.2rem;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

.version-info {
    margin: 3rem 0;
    background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.version-info h2 {
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.version-highlight {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.95;
}

/* Mobile responsiveness for introduction section */
@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .platform-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .tech-grid {
        gap: 1rem;
    }

    .tech-item {
        min-width: 100px;
        padding: 1rem;
    }

    .overview-section,
    .platform-support,
    .saas-benefits,
    .version-info {
        padding: 1.5rem;
        margin: 1.5rem 0;
    }

    .key-features h2,
    .platform-support h2,
    .technology-stack h2,
    .saas-benefits h2,
    .version-info h2 {
        font-size: 1.5rem;
    }

    .overview-section h2 {
        font-size: 1.3rem;
    }

    .benefits-list li {
        font-size: 1rem;
    }

    .version-highlight {
        font-size: 1rem;
    }
}

/* System Requirements Section Styles */
.requirements-overview {
    margin: 2rem 0;
}

.overview-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.overview-card i {
    font-size: 3rem;
    opacity: 0.9;
    flex-shrink: 0;
}

.overview-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.overview-card p {
    margin: 0;
    opacity: 0.9;
    line-height: 1.6;
}

.requirements-container {
    margin: 3rem 0;
}

.req-category {
    margin: 3rem 0;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.req-category h3 {
    color: #2c3e50;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.req-category h3 i {
    color: #667eea;
    font-size: 1.3rem;
}

/* Server Requirements Styles */
.server-specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.spec-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.spec-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.spec-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.spec-card.minimum .spec-header {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
}

.spec-card.recommended .spec-header {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    color: white;
}

.spec-card.enterprise .spec-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.spec-header i {
    font-size: 1.5rem;
}

.spec-header h4 {
    margin: 0;
    font-size: 1.2rem;
    flex: 1;
}

.spec-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.spec-content {
    padding: 1.5rem;
}

.spec-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}

.spec-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.spec-item i {
    color: #667eea;
    font-size: 1.2rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.spec-item div strong {
    color: #2c3e50;
    display: block;
    margin-bottom: 0.2rem;
}

.spec-item div small {
    color: #666;
    font-size: 0.85rem;
    line-height: 1.4;
}

/* Software Requirements Styles */
.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.software-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    text-align: center;
}

.software-card:hover {
    transform: translateY(-3px);
}

.software-card i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.software-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.version-info {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.version-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.version-badge.required {
    background: #ff6b6b;
    color: white;
}

.version-badge.flexible {
    background: #4ecdc4;
    color: white;
}

.version-badge.optional {
    background: #95a5a6;
    color: white;
}

.version-info strong {
    color: #2c3e50;
    font-size: 1.1rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    text-align: left;
}

.feature-list li {
    padding: 0.4rem 0;
    color: #555;
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.2rem;
}

.feature-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #4ecdc4;
    font-weight: bold;
}

/* Development Environment Styles */
.dev-platforms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.platform-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.platform-card:hover {
    transform: translateY(-3px);
}

.platform-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: white;
}

.platform-card.windows .platform-header {
    background: linear-gradient(135deg, #0078d4 0%, #106ebe 100%);
}

.platform-card.macos .platform-header {
    background: linear-gradient(135deg, #333 0%, #000 100%);
}

.platform-card.linux .platform-header {
    background: linear-gradient(135deg, #f7931e 0%, #e67e22 100%);
}

.platform-header i {
    font-size: 2rem;
}

.platform-header h4 {
    margin: 0;
    font-size: 1.3rem;
}

.platform-specs {
    padding: 1.5rem;
}

.spec-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid #eee;
}

.spec-row:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.spec-row i {
    color: #667eea;
    font-size: 1.1rem;
    width: 20px;
    flex-shrink: 0;
}

.spec-row span {
    color: #555;
    font-size: 0.95rem;
    line-height: 1.4;
}

/* Mobile Requirements Styles */
.mobile-specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.mobile-spec-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.mobile-spec-card:hover {
    transform: translateY(-3px);
}

.mobile-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: white;
}

.mobile-spec-card.android .mobile-header {
    background: linear-gradient(135deg, #3ddc84 0%, #2e7d32 100%);
}

.mobile-spec-card.ios .mobile-header {
    background: linear-gradient(135deg, #007aff 0%, #0051d5 100%);
}

.mobile-header i {
    font-size: 2rem;
}

.mobile-header h4 {
    margin: 0;
    font-size: 1.3rem;
}

.mobile-content {
    padding: 1.5rem;
}

.target-devices,
.development-req {
    margin-bottom: 1.5rem;
}

.target-devices:last-child,
.development-req:last-child {
    margin-bottom: 0;
}

.target-devices h5,
.development-req h5 {
    color: #2c3e50;
    margin-bottom: 0.8rem;
    font-size: 1rem;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.3rem;
}

.target-devices ul,
.development-req ul {
    list-style: none;
    padding: 0;
}

.target-devices ul li,
.development-req ul li {
    padding: 0.3rem 0;
    color: #555;
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.2rem;
}

.target-devices ul li:before,
.development-req ul li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* Performance Recommendations Styles */
.performance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.perf-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.perf-card:hover {
    transform: translateY(-3px);
}

.perf-card i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.perf-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.perf-card ul {
    list-style: none;
    padding: 0;
    text-align: left;
}

.perf-card ul li {
    padding: 0.4rem 0;
    color: #555;
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.2rem;
}

.perf-card ul li:before {
    content: "⚡";
    position: absolute;
    left: 0;
    color: #667eea;
}

/* Compatibility Checker Styles */
.compatibility-check {
    margin: 3rem 0;
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
}

.compatibility-check h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.compatibility-check p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
    line-height: 1.6;
}

.compatibility-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.check-category h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: #fff;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 0.5rem;
}

.compatibility-checklist {
    list-style: none;
    padding: 0;
}

.compatibility-checklist li {
    margin: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.compatibility-checklist input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #fff;
    cursor: pointer;
}

.compatibility-checklist label {
    cursor: pointer;
    font-size: 0.95rem;
    opacity: 0.9;
    transition: opacity 0.3s ease;
    line-height: 1.4;
}

.compatibility-checklist input[type="checkbox"]:checked + label {
    opacity: 1;
    text-decoration: line-through;
}

/* Next Section Guide Styles */
.next-section-guide {
    margin: 3rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.next-section-guide h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
}

.next-section-guide p {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: 1.5rem;
}

.readiness-indicator {
    background: rgba(255, 255, 255, 0.15);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    font-size: 0.95rem;
    opacity: 0.9;
}

.readiness-indicator i {
    font-size: 1.2rem;
}

/* Mobile Responsiveness for System Requirements */
@media (max-width: 768px) {
    .overview-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .overview-card i {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .req-category {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .req-category h3 {
        font-size: 1.3rem;
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .server-specs-grid,
    .software-grid,
    .dev-platforms,
    .mobile-specs-grid,
    .performance-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .spec-card,
    .software-card,
    .platform-card,
    .mobile-spec-card,
    .perf-card {
        margin-bottom: 1rem;
    }

    .spec-header {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding: 1.2rem;
    }

    .spec-header h4 {
        font-size: 1.1rem;
    }

    .spec-item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .spec-item i {
        font-size: 1.5rem;
        margin-bottom: 0.3rem;
    }

    .platform-header,
    .mobile-header {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding: 1.2rem;
    }

    .platform-header i,
    .mobile-header i {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .spec-row {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        align-items: center;
    }

    .compatibility-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .compatibility-check,
    .next-section-guide {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .compatibility-check h3,
    .next-section-guide h3 {
        font-size: 1.2rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .readiness-indicator {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .version-info {
        flex-direction: column;
        gap: 0.5rem;
    }

    .software-card i {
        font-size: 2.5rem;
    }

    .perf-card i {
        font-size: 2rem;
    }
}

/* Software Installation Section Styles */
.installation-overview {
    margin: 2rem 0;
}

.overview-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.overview-banner i {
    font-size: 3rem;
    opacity: 0.9;
    flex-shrink: 0;
}

.overview-banner h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.overview-banner p {
    margin: 0;
    opacity: 0.9;
    line-height: 1.6;
}

.software-categories {
    margin: 3rem 0;
}

.software-category {
    margin: 3rem 0;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.category-header {
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: white;
    position: relative;
}

.flutter-category .category-header {
    background: linear-gradient(135deg, #02569B 0%, #0175C2 100%);
}

.php-category .category-header {
    background: linear-gradient(135deg, #777BB4 0%, #8892BF 100%);
}

.tools-category .category-header {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
}

.dependencies-category .category-header {
    background: linear-gradient(135deg, #95a5a6 0%, #7f8c8d 100%);
}

.category-header i {
    font-size: 2rem;
}

.category-header h3 {
    margin: 0;
    font-size: 1.5rem;
    flex: 1;
}

.priority-badge {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.priority-badge.critical {
    background: #e74c3c;
    color: white;
}

.priority-badge.recommended {
    background: #f39c12;
    color: white;
}

.priority-badge.optional {
    background: #95a5a6;
    color: white;
}

.software-item {
    padding: 2rem;
    background: white;
}

.software-info h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.software-info h4 i {
    color: #667eea;
}

.software-info p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.official-link,
.official-links {
    margin: 1.5rem 0;
}

.official-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.official-docs-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.official-docs-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    color: white;
    text-decoration: none;
}

.installation-methods {
    margin-top: 2rem;
}

.method-tabs {
    display: flex;
    background: #e9ecef;
    border-radius: 8px;
    padding: 0.3rem;
    margin-bottom: 2rem;
}

.tab-btn {
    flex: 1;
    padding: 0.8rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: white;
    color: #2c3e50;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tab-btn:hover {
    color: #2c3e50;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.installation-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.step-content p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.code-block {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1rem 0;
}

.code-block pre {
    margin: 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
}

.code-block code {
    color: #ecf0f1;
    background: none;
    padding: 0;
}

/* Tools Grid Styles */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
    background: white;
}

.tool-card {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid transparent;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
}

.tool-card i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.tool-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.tool-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.tool-features ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
    text-align: left;
}

.tool-features ul li {
    padding: 0.3rem 0;
    color: #555;
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.2rem;
}

.tool-features ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #4ecdc4;
    font-weight: bold;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.3);
    color: white;
    text-decoration: none;
}

/* Dependencies Grid Styles */
.dependencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
    background: white;
}

.dependency-item {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.dependency-item:hover {
    transform: translateY(-3px);
}

.dependency-item i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.dependency-item h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.dependency-item p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.install-commands {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.command-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem;
    background: white;
    border-radius: 6px;
    border-left: 3px solid #667eea;
}

.os-label {
    font-weight: 600;
    color: #2c3e50;
    min-width: 80px;
    font-size: 0.9rem;
}

.command-group code {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    flex: 1;
}

/* Installation Verification Styles */
.installation-verification {
    margin: 3rem 0;
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
}

.installation-verification h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.installation-verification p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
    line-height: 1.6;
}

.verification-checklist {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.verification-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.verification-command {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.command-label {
    font-weight: 600;
    min-width: 80px;
}

.verification-command code {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.expected-result {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.9;
}

.result-label {
    font-weight: 500;
    font-size: 0.9rem;
}

/* Troubleshooting Section Styles */
.troubleshooting-section {
    margin: 3rem 0;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #e74c3c;
}

.troubleshooting-section h3 {
    color: #2c3e50;
    margin-bottom: 2rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.troubleshooting-section h3 i {
    color: #e74c3c;
}

.troubleshooting-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.issue-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.issue-card:hover {
    transform: translateY(-2px);
}

.issue-card h4 {
    color: #e74c3c;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.issue-content p {
    color: #555;
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.issue-content ul {
    list-style: none;
    padding: 0;
    margin-top: 0.5rem;
}

.issue-content ul li {
    padding: 0.3rem 0;
    color: #555;
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.2rem;
}

.issue-content ul li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.issue-content code {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}

/* Next Steps Guide Styles */
.next-steps-guide {
    margin: 3rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.next-steps-guide h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
}

.next-steps-guide p {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: 2rem;
}

.completion-checklist {
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: left;
}

.completion-checklist h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.final-checklist {
    list-style: none;
    padding: 0;
}

.final-checklist li {
    margin: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.final-checklist input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #4ade80;
    cursor: pointer;
}

.final-checklist label {
    cursor: pointer;
    font-size: 0.95rem;
    opacity: 0.9;
    transition: opacity 0.3s ease;
    line-height: 1.4;
}

.final-checklist input[type="checkbox"]:checked + label {
    opacity: 1;
    text-decoration: line-through;
}

/* Mobile Responsiveness for Software Installation */
@media (max-width: 768px) {
    .overview-banner {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .overview-banner i {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .software-category {
        margin: 2rem 0;
    }

    .category-header {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
        padding: 1.5rem;
    }

    .category-header i {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .category-header h3 {
        font-size: 1.3rem;
    }

    .software-item {
        padding: 1.5rem;
    }

    .official-links {
        flex-direction: column;
        gap: 0.8rem;
    }

    .official-docs-link {
        justify-content: center;
        padding: 1rem 1.5rem;
    }

    .method-tabs {
        flex-direction: column;
        gap: 0.3rem;
    }

    .tab-btn {
        padding: 1rem;
        text-align: center;
    }

    .step-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        padding: 1.2rem;
    }

    .step-number {
        align-self: center;
    }

    .tools-grid,
    .dependencies-grid,
    .troubleshooting-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.5rem;
    }

    .tool-card,
    .dependency-item,
    .issue-card {
        padding: 1.2rem;
    }

    .verification-item {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
    }

    .verification-command {
        flex-direction: column;
        gap: 0.5rem;
    }

    .command-group {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .os-label {
        min-width: auto;
    }

    .installation-verification,
    .troubleshooting-section,
    .next-steps-guide {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .installation-verification h3,
    .troubleshooting-section h3,
    .next-steps-guide h3 {
        font-size: 1.2rem;
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .completion-checklist {
        padding: 1.2rem;
    }

    .final-checklist li {
        margin: 0.6rem 0;
    }

    .final-checklist label {
        font-size: 0.9rem;
    }
}

/* Mighty-School Installation Process Styles */
.installation-overview {
    margin: 2rem 0;
}

.installation-step {
    margin: 2.5rem 0;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #667eea;
}

.step-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.step-header .step-number {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
}

.step-content {
    padding: 2rem;
    background: white;
}

.step-content h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.step-content h4 i {
    color: #667eea;
}

.installation-list {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.installation-list li {
    margin: 0.8rem 0;
    color: #555;
    line-height: 1.6;
}

.installation-list strong {
    color: #2c3e50;
    font-weight: 600;
}

.login-urls {
    margin: 1rem 0;
    padding: 1rem;
    background: #e8f4fd;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

.login-urls code {
    background: #3498db;
    color: white;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    margin: 0 0.3rem;
    font-size: 0.9rem;
}

.permission-info {
    margin: 1.5rem 0;
    padding: 1rem;
    background: #fff3cd;
    border-radius: 8px;
    border-left: 4px solid #ffc107;
}

.permission-info p {
    margin-bottom: 1rem;
    color: #856404;
}

.permission-info code {
    background: #ffc107;
    color: #212529;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.9rem;
}

.preparation-tasks,
.packaging-guide,
.upload-process,
.database-setup,
.migration-methods {
    margin: 1.5rem 0;
}

.task-group,
.package-structure,
.upload-section,
.db-creation-steps,
.env-configuration {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.task-group h5,
.package-structure h5,
.upload-section h5,
.db-creation-steps h5,
.env-configuration h5 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* File Tree Structure */
.file-tree {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.tree-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.2rem 0;
    color: #2c3e50;
}

.tree-children {
    margin-left: 1.5rem;
    border-left: 1px dashed #ccc;
    padding-left: 1rem;
}

.tree-item i {
    color: #667eea;
    width: 16px;
}

/* CPanel Access Guide */
.cpanel-access-guide {
    margin: 1.5rem 0;
}

.access-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.access-step {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #4ecdc4;
}

.access-step i {
    font-size: 1.5rem;
    color: #4ecdc4;
    flex-shrink: 0;
}

.access-step h5 {
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
    font-size: 1rem;
}

.access-step p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
    line-height: 1.4;
}

.access-step code {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-top: 0.5rem;
    display: block;
}

/* Upload Instructions */
.upload-instructions ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.upload-instructions li {
    margin: 0.5rem 0;
    color: #555;
    line-height: 1.5;
}

/* Code Comparison */
.before-after {
    margin: 1.5rem 0;
}

.code-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.code-before,
.code-after {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e9ecef;
}

.code-before h5,
.code-after h5 {
    background: #2c3e50;
    color: white;
    margin: 0;
    padding: 0.8rem 1rem;
    font-size: 0.9rem;
}

.code-after h5 {
    background: #27ae60;
}

.modification-steps {
    margin: 1.5rem 0;
    padding: 1rem;
    background: #e8f5e8;
    border-radius: 8px;
    border-left: 4px solid #27ae60;
}

.modification-steps h5 {
    color: #27ae60;
    margin-bottom: 1rem;
}

.modification-steps ol {
    margin: 0;
    padding-left: 1.5rem;
}

.modification-steps li {
    margin: 0.5rem 0;
    color: #2c3e50;
    line-height: 1.4;
}

/* Database Setup */
.db-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin: 1rem 0;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

.db-step i {
    font-size: 1.5rem;
    color: #3498db;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.db-step h6 {
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
    font-size: 1rem;
}

.db-step p {
    margin: 0 0 0.5rem 0;
    color: #666;
    font-size: 0.9rem;
    line-height: 1.4;
}

.db-step code {
    background: #3498db;
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    display: block;
    margin-top: 0.3rem;
}

/* Permissions Guide */
.permissions-guide {
    margin: 1.5rem 0;
}

.permission-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.permission-category {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e9ecef;
}

.permission-category h5 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.5rem;
}

.permission-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.permission-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid #667eea;
}

.permission-item code {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
    flex: 1;
}

.permission-value {
    background: #27ae60;
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-weight: bold;
    font-size: 0.85rem;
    margin: 0 0.5rem;
}

.permission-desc {
    color: #666;
    font-size: 0.8rem;
    flex: 1;
    text-align: right;
}

.permission-commands {
    margin: 1.5rem 0;
    padding: 1rem;
    background: #e8f5e8;
    border-radius: 8px;
    border-left: 4px solid #27ae60;
}

.permission-commands h5 {
    color: #27ae60;
    margin-bottom: 1rem;
}

.permission-steps ol {
    margin: 0;
    padding-left: 1.5rem;
}

.permission-steps li {
    margin: 0.5rem 0;
    color: #2c3e50;
    line-height: 1.4;
}

/* Verification Grid */
.verification-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.verification-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #27ae60;
}

.verification-item i {
    font-size: 1.5rem;
    color: #27ae60;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.verification-item h6 {
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
    font-size: 1rem;
}

.verification-item p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
    line-height: 1.4;
}

.verification-item code {
    background: #27ae60;
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    display: block;
    margin-top: 0.3rem;
}

/* Installation Success Section */
.installation-success {
    margin: 3rem 0;
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.installation-success h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
}

.installation-success p {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: 2rem;
}

.completion-checklist {
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: left;
    margin: 2rem 0;
}

.completion-checklist h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
    text-align: center;
}

.final-installation-checklist {
    list-style: none;
    padding: 0;
}

.final-installation-checklist li {
    margin: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.final-installation-checklist input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #4ade80;
    cursor: pointer;
}

.final-installation-checklist label {
    cursor: pointer;
    font-size: 0.95rem;
    opacity: 0.9;
    transition: opacity 0.3s ease;
    line-height: 1.4;
}

.final-installation-checklist input[type="checkbox"]:checked + label {
    opacity: 1;
    text-decoration: line-through;
}

/* Keep deployment checklist styles for backward compatibility */
.final-deployment-checklist {
    list-style: none;
    padding: 0;
}

.final-deployment-checklist li {
    margin: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.final-deployment-checklist input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #4ade80;
    cursor: pointer;
}

.final-deployment-checklist label {
    cursor: pointer;
    font-size: 0.95rem;
    opacity: 0.9;
    transition: opacity 0.3s ease;
    line-height: 1.4;
}

.final-deployment-checklist input[type="checkbox"]:checked + label {
    opacity: 1;
    text-decoration: line-through;
}

.next-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    color: white;
    text-decoration: none;
}

/* Mobile Responsiveness for CPanel Deployment */
@media (max-width: 768px) {
    .deployment-category {
        margin: 2rem 0;
    }

    .deployment-steps {
        padding: 1.5rem;
    }

    .step-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        padding: 1.2rem;
    }

    .step-number {
        align-self: center;
    }

    .task-group,
    .package-structure,
    .upload-section,
    .db-creation-steps,
    .env-configuration {
        padding: 1.2rem;
        margin: 1rem 0;
    }

    .code-comparison {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .access-steps {
        gap: 0.8rem;
    }

    .access-step {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
        padding: 1rem;
    }

    .access-step i {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .permission-categories,
    .verification-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .permission-item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .permission-desc {
        text-align: center;
    }

    .db-step {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
    }

    .db-step i {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .verification-item {
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
    }

    .verification-item i {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .deployment-completion,
    .completion-checklist {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .next-actions {
        flex-direction: column;
        gap: 0.8rem;
    }

    .action-btn {
        padding: 1rem 1.5rem;
        justify-content: center;
    }

    .final-deployment-checklist li {
        margin: 0.6rem 0;
    }

    .final-deployment-checklist label {
        font-size: 0.9rem;
    }

    /* Mobile styles for installation process */
    .installation-step {
        margin: 1.5rem 0;
    }

    .step-header {
        padding: 1.2rem 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 0.8rem;
    }

    .step-header .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.4rem;
    }

    .step-header h3 {
        font-size: 1.1rem;
        text-align: center;
    }

    .step-content {
        padding: 1.5rem;
    }

    .step-content h4 {
        font-size: 1rem;
        flex-direction: column;
        text-align: center;
        gap: 0.3rem;
    }

    .installation-list {
        padding-left: 1.2rem;
    }

    .installation-list li {
        margin: 0.6rem 0;
        font-size: 0.9rem;
    }

    .login-urls {
        padding: 0.8rem;
        text-align: center;
    }

    .login-urls code {
        display: block;
        margin: 0.3rem 0;
        padding: 0.4rem 0.8rem;
    }

    .permission-info {
        padding: 0.8rem;
    }

    .installation-success,
    .completion-checklist {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .final-installation-checklist li {
        margin: 0.6rem 0;
    }

    .final-installation-checklist label {
        font-size: 0.9rem;
    }
}

/* Flutter Installation Section Styles */
.os-selection {
    margin: 3rem 0;
}

.os-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.os-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.os-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
}

.os-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #667eea;
}

.os-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.os-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.os-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.os-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    color: white;
    text-decoration: none;
}

.verification-section {
    margin: 3rem 0;
    background: #e8f5e8;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #27ae60;
}

.verification-commands {
    margin: 1.5rem 0;
}

.command-block {
    margin: 1.5rem 0;
}

.command-block h4 {
    color: #27ae60;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.command-description {
    color: #666;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    font-style: italic;
}

.next-steps-section {
    margin: 3rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.next-steps-section h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.next-steps-section p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.next-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    color: white;
    text-decoration: none;
    border-color: rgba(255, 255, 255, 0.5);
}

/* Mobile Responsive Styles for Flutter Installation */
@media (max-width: 768px) {
    .os-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .os-card {
        padding: 1.5rem;
    }

    .os-icon {
        font-size: 2.5rem;
    }

    .verification-section,
    .next-steps-section {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .next-actions {
        flex-direction: column;
        gap: 0.8rem;
    }

    .action-btn {
        justify-content: center;
    }
}

/* Reskin Guide Styles */
.flutter-info {
    margin: 2rem 0;
}

.info-card {
    background: #e8f4fd;
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid #3498db;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.info-card i {
    font-size: 2rem;
    color: #3498db;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.info-card h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.info-card p {
    color: #555;
    margin: 0;
    line-height: 1.6;
}

.icon-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.tool-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
}

.tool-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #667eea;
}

.tool-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.tool-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.tool-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tool-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    color: white;
    text-decoration: none;
}

.config-steps {
    margin: 2rem 0;
}

.config-step {
    background: white;
    margin: 1.5rem 0;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.config-step .step-number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
    margin: 1.5rem;
}

.config-step .step-content {
    padding: 1.5rem;
    padding-top: 0;
}

.config-step .step-content h4 {
    color: #2c3e50;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.config-step .step-content p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.config-step .step-content ol {
    padding-left: 1.5rem;
}

.config-step .step-content li {
    margin: 0.5rem 0;
    color: #555;
    line-height: 1.5;
}

.warning-box {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-left: 4px solid #fdcb6e;
    padding: 1rem;
    border-radius: 8px;
    margin: 2rem 0;
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.warning-box i {
    color: #e17055;
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.warning-box p {
    margin: 0;
    color: #856404;
    line-height: 1.5;
}

.build-options {
    margin: 2rem 0;
}

.build-option {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin: 1.5rem 0;
}

.build-option h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.build-option p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.web-config-list ul {
    list-style: none;
    padding: 0;
}

.web-config-list li {
    background: white;
    padding: 1rem;
    margin: 0.8rem 0;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #3498db;
}

.web-config-list strong {
    color: #2c3e50;
    font-weight: 600;
}

.macos-config-list ul {
    list-style: none;
    padding: 0;
}

.macos-config-list li {
    background: white;
    padding: 1rem;
    margin: 0.8rem 0;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #e74c3c;
}

.macos-config-list strong {
    color: #2c3e50;
    font-weight: 600;
}

.important-notice {
    background: #fee;
    border: 1px solid #fcc;
    border-left: 4px solid #e74c3c;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 3rem 0;
}

.notice-content {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.notice-content i {
    color: #e74c3c;
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.notice-content h4 {
    color: #c0392b;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.notice-content p {
    color: #721c24;
    margin: 0;
    line-height: 1.6;
}

.thank-you-section {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    margin: 3rem 0;
}

.thank-you-section h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.thank-you-section p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Web Build Deploy Styles */
.web-build-section {
    margin: 3rem 0;
    background: #e8f5e8;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #27ae60;
}

.build-command {
    margin: 1.5rem 0;
}

.build-command h4 {
    color: #27ae60;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.build-note {
    color: #666;
    font-size: 0.9rem;
    margin-top: 0.8rem;
    font-style: italic;
}

.server-deploy-section {
    margin: 3rem 0;
}

.deploy-steps {
    margin: 2rem 0;
}

.deploy-step {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin: 1.5rem 0;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.deploy-step .step-number {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.deploy-step .step-content h4 {
    color: #2c3e50;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.deploy-step .step-content p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.note-box {
    background: #e8f4fd;
    border: 1px solid #bee5eb;
    border-left: 4px solid #3498db;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.note-box i {
    color: #3498db;
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.note-box p {
    margin: 0;
    color: #155724;
    line-height: 1.5;
}

.vercel-deploy-section {
    margin: 3rem 0;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.vercel-steps {
    margin: 2rem 0;
}

.vercel-step {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin: 1.5rem 0;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.vercel-step .step-number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.vercel-step .step-content h4 {
    color: #2c3e50;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.vercel-alternative {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
}

.vercel-alternative h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.vercel-alternative ol {
    padding-left: 1.5rem;
}

.vercel-alternative li {
    margin: 0.8rem 0;
    color: #555;
    line-height: 1.5;
}

.important-notes {
    margin: 3rem 0;
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.note-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.note-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.note-card i {
    font-size: 2rem;
    color: #e74c3c;
    margin-bottom: 1rem;
}

.note-card h4 {
    color: #2c3e50;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.note-card p {
    color: #666;
    margin: 0;
    line-height: 1.5;
    font-size: 0.9rem;
}

/* Mobile Responsive Styles for New Sections */
@media (max-width: 768px) {
    .icon-tools {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .tool-card {
        padding: 1.5rem;
    }

    .tool-card i {
        font-size: 2.5rem;
    }

    .config-steps {
        margin: 1.5rem 0;
    }

    .config-step {
        margin: 1rem 0;
    }

    .config-step .step-number {
        margin: 1rem;
    }

    .config-step .step-content {
        padding: 1rem;
        padding-top: 0;
    }

    .deploy-step,
    .vercel-step {
        flex-direction: column;
        text-align: center;
        padding: 1.2rem;
    }

    .deploy-step .step-number,
    .vercel-step .step-number {
        align-self: center;
        margin-bottom: 0.8rem;
    }

    .notes-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .note-card {
        padding: 1.2rem;
    }

    .web-build-section,
    .server-deploy-section,
    .vercel-deploy-section {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .info-card {
        flex-direction: column;
        text-align: center;
        padding: 1.2rem;
    }

    .info-card i {
        align-self: center;
        margin-bottom: 0.8rem;
    }

    .warning-box,
    .note-box {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }

    .warning-box i,
    .note-box i {
        align-self: center;
        margin-bottom: 0.5rem;
    }

    .important-notice {
        padding: 1.2rem;
    }

    .notice-content {
        flex-direction: column;
        text-align: center;
    }

    .notice-content i {
        align-self: center;
        margin-bottom: 0.8rem;
    }

    .thank-you-section {
        padding: 1.5rem;
        margin: 2rem 0;
    }
}





/* Software Installation Section Styles */
.installation-overview {
    margin: 2rem 0;
}

.overview-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.overview-banner i {
    font-size: 3rem;
    opacity: 0.9;
    flex-shrink: 0;
}

.overview-banner h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.overview-banner p {
    margin: 0;
    opacity: 0.9;
    line-height: 1.6;
}

.software-categories {
    margin: 3rem 0;
}

.software-category {
    margin: 3rem 0;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.category-header {
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: white;
    position: relative;
}

.flutter-category .category-header {
    background: linear-gradient(135deg, #02569B 0%, #0175C2 100%);
}

.php-category .category-header {
    background: linear-gradient(135deg, #777BB4 0%, #8892BF 100%);
}

.tools-category .category-header {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
}

.dependencies-category .category-header {
    background: linear-gradient(135deg, #95a5a6 0%, #7f8c8d 100%);
}

.category-header i {
    font-size: 2rem;
}

.category-header h3 {
    margin: 0;
    font-size: 1.5rem;
    flex: 1;
}

.priority-badge {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.priority-badge.critical {
    background: #e74c3c;
    color: white;
}

.priority-badge.recommended {
    background: #f39c12;
    color: white;
}

.priority-badge.optional {
    background: #95a5a6;
    color: white;
}

.software-item {
    padding: 2rem;
    background: white;
}

.software-info h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.software-info h4 i {
    color: #667eea;
}

.software-info p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.official-link,
.official-links {
    margin: 1.5rem 0;
}

.official-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.official-docs-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.official-docs-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    color: white;
    text-decoration: none;
}

.installation-methods {
    margin-top: 2rem;
}

.method-tabs {
    display: flex;
    background: #e9ecef;
    border-radius: 8px;
    padding: 0.3rem;
    margin-bottom: 2rem;
}

.tab-btn {
    flex: 1;
    padding: 0.8rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: white;
    color: #2c3e50;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tab-btn:hover {
    color: #2c3e50;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.installation-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.step-content p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.code-block {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 1rem 0;
}

.code-block pre {
    margin: 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
}

.code-block code {
    color: #ecf0f1;
    background: none;
    padding: 0;
}

/* Prerequisites Section Styles */
.important-note {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 2rem 0;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.important-note i {
    font-size: 1.5rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.important-note div {
    flex: 1;
}

.prerequisites-container {
    margin: 3rem 0;
}

.prereq-category {
    margin: 3rem 0;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.prereq-category h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.prereq-category h3 i {
    color: #667eea;
}

.prereq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.prereq-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    gap: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.prereq-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.prereq-item i {
    font-size: 2rem;
    color: #667eea;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.prereq-item h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.prereq-item p {
    color: #666;
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.prereq-item ul {
    list-style: none;
    padding: 0;
}

.prereq-item ul li {
    color: #555;
    font-size: 0.9rem;
    padding: 0.2rem 0;
    position: relative;
    padding-left: 1rem;
}

.prereq-item ul li:before {
    content: "•";
    color: #667eea;
    position: absolute;
    left: 0;
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.knowledge-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.knowledge-item:hover {
    transform: translateY(-3px);
}

.knowledge-item.essential {
    border-left: 4px solid #e74c3c;
}

.knowledge-item.recommended {
    border-left: 4px solid #f39c12;
}

.knowledge-item.advanced {
    border-left: 4px solid #27ae60;
}

.knowledge-item h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.knowledge-item.essential h4 i {
    color: #e74c3c;
}

.knowledge-item.recommended h4 i {
    color: #f39c12;
}

.knowledge-item.advanced h4 i {
    color: #27ae60;
}

.knowledge-item ul {
    list-style: none;
    padding: 0;
}

.knowledge-item ul li {
    color: #555;
    font-size: 0.95rem;
    padding: 0.4rem 0;
    position: relative;
    padding-left: 1.2rem;
}

.knowledge-item ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    font-weight: bold;
}

.knowledge-item.essential ul li:before {
    color: #e74c3c;
}

.knowledge-item.recommended ul li:before {
    color: #f39c12;
}

.knowledge-item.advanced ul li:before {
    color: #27ae60;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.tool-category {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.tool-category:hover {
    transform: translateY(-2px);
}

.tool-category h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.tool-category h4 i {
    color: #667eea;
}

.tool-category ul {
    list-style: none;
    padding: 0;
}

.tool-category ul li {
    color: #555;
    font-size: 0.95rem;
    padding: 0.3rem 0;
    position: relative;
    padding-left: 1.2rem;
}

.tool-category ul li:before {
    content: "⚡";
    position: absolute;
    left: 0;
    color: #667eea;
}

.access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.access-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.access-item:hover {
    transform: translateY(-2px);
}

.access-item h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.access-item h4 i {
    color: #667eea;
}

.access-item ul {
    list-style: none;
    padding: 0;
}

.access-item ul li {
    color: #555;
    font-size: 0.95rem;
    padding: 0.3rem 0;
    position: relative;
    padding-left: 1.2rem;
}

.access-item ul li:before {
    content: "🔑";
    position: absolute;
    left: 0;
}

.planning-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.time-estimate,
.resource-planning {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.time-estimate h4,
.resource-planning h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.time-estimate h4 i {
    color: #f39c12;
}

.resource-planning h4 i {
    color: #27ae60;
}

.time-estimate ul,
.resource-planning ul {
    list-style: none;
    padding: 0;
}

.time-estimate ul li,
.resource-planning ul li {
    color: #555;
    font-size: 0.95rem;
    padding: 0.4rem 0;
    position: relative;
    padding-left: 1.2rem;
}

.time-estimate ul li:before {
    content: "⏱️";
    position: absolute;
    left: 0;
}

.resource-planning ul li:before {
    content: "👥";
    position: absolute;
    left: 0;
}

.readiness-checklist {
    margin: 3rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
}

.readiness-checklist h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.readiness-checklist p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.checklist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.checklist-column h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: #fff;
}

.interactive-checklist {
    list-style: none;
    padding: 0;
}

.interactive-checklist li {
    margin: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.interactive-checklist input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #4ade80;
    cursor: pointer;
}

.interactive-checklist label {
    cursor: pointer;
    font-size: 0.95rem;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.interactive-checklist input[type="checkbox"]:checked + label {
    opacity: 1;
    text-decoration: line-through;
}

.next-steps {
    margin: 3rem 0;
    background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.next-steps h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.next-steps p {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.95;
}

/* Mobile responsiveness for prerequisites section */
@media (max-width: 768px) {
    .important-note {
        flex-direction: column;
        text-align: center;
        padding: 1.2rem;
    }

    .important-note i {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .prereq-category {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .prereq-grid,
    .knowledge-grid,
    .tools-grid,
    .access-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .prereq-item {
        flex-direction: column;
        text-align: center;
        padding: 1.2rem;
    }

    .prereq-item i {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .planning-info {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .checklist-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .readiness-checklist,
    .next-steps {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .prereq-category h3,
    .readiness-checklist h3,
    .next-steps h3 {
        font-size: 1.2rem;
        flex-direction: column;
        gap: 0.3rem;
        text-align: center;
    }

    .interactive-checklist li {
        margin: 0.6rem 0;
    }

    .interactive-checklist label {
        font-size: 0.9rem;
    }
}