/* ===== GLOBAL DESIGN SYSTEM ===== */
:root {
    /* Colors */
    --primary: #1a1a2e;
    --secondary: #16213e;
    --accent: #6c5ce7;
    --accent-light: #a29bfe;
    --accent-dark: #5f3dc4;
    --bg-body: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --text-light: #b2bec3;
    --border-color: #dfe6e9;
    --border-light: #f1f3f5;
    --success: #00b894;
    --warning: #fdcb6e;
    --error: #e17055;
    
    /* Typography */
    --font-primary: 'Heebo', sans-serif;
    --font-heading: 'Frank Ruhl Libre', serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
}

/* ===== GLOBAL HEADER & NAVIGATION ===== */
.global-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.global-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.global-nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.8rem var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 9999;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.global-nav.scrolled {
    background: rgba(255, 255, 255, 0.98);
    padding: 0.6rem 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

body {
    padding-top: 80px;
}

.nav-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: color 0.2s ease;
}

.nav-brand:hover {
    color: var(--accent);
}

.nav-brand .logo {
    font-size: 1.6rem;
    margin-left: var(--spacing-xs);
}

.nav-links {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.nav-link {
    font-family: var(--font-primary);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--accent);
    background: rgba(108, 92, 231, 0.08);
    transform: translateY(-1px);
}

.nav-link.active {
    color: var(--accent);
    font-weight: 600;
    background: rgba(108, 92, 231, 0.1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.8rem;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
}

/* --- Mobile Menu & Responsive --- */
.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 10001;
}

.hamburger-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background: #2d3436;
    margin: 5px 0;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.hamburger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

@media (max-width: 900px) {
    .global-nav {
        padding: 0.8rem 1.5rem;
    }

    .hamburger-menu {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        /* Hidden by default */
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: #ffffff;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        transition: right 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
        gap: 2rem;
    }

    .nav-links.active {
        right: 0;
    }

    /* Overlay when menu is open */
    .nav-links.active::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.4);
        z-index: -1;
        backdrop-filter: blur(4px);
        pointer-events: none;
        /* Let clicks pass through if needed, though usually we want to block */
    }

    .nav-link {
        font-size: 1.2rem;
        width: 100%;
        padding: 0.5rem;
        border-bottom: 1px solid #f1f2f6;
    }
}

/* Breadcrumbs Mobile Fix */
@media (max-width: 600px) {
    .breadcrumbs {
        padding: 0 1rem;
        font-size: 0.8rem;
        white-space: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin-top: 5px;
    }
}

/* ===== STANDARD PAGE COMPONENTS ===== */

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.page-header .header-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.page-header h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.page-header .subtitle {
    font-size: 1.2rem;
    opacity: 0.95;
    font-weight: 300;
    line-height: 1.4;
}

/* Container */
.page-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg) var(--spacing-xl);
}

/* Cards */
.content-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    border-right: 4px solid var(--accent);
}

.content-card h2 {
    color: var(--primary);
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.content-card h3 {
    color: var(--secondary);
    font-family: var(--font-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.content-card p {
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.content-card ul, .content-card ol {
    margin: var(--spacing-sm) 0;
    padding-right: var(--spacing-md);
}

.content-card li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

/* Highlight Boxes */
.highlight-box {
    background: linear-gradient(135deg, #e8f5e8 0%, #f0f9f0 100%);
    border: 1px solid var(--success);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-right: 4px solid var(--success);
}

.warning-box {
    background: linear-gradient(135deg, #fff8e1 0%, #fffbf0 100%);
    border: 1px solid var(--warning);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-right: 4px solid var(--warning);
}

.info-box {
    background: linear-gradient(135deg, #e3f2fd 0%, #f0f8ff 100%);
    border: 1px solid var(--accent-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-right: 4px solid var(--accent-light);
}

/* Breadcrumbs */
.breadcrumbs {
    max-width: 1000px;
    margin: var(--spacing-sm) auto;
    padding: 0 var(--spacing-lg);
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-family: var(--font-primary);
    text-align: right;
}

.breadcrumbs a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumbs a:hover {
    color: var(--accent);
    text-decoration: underline;
}

.breadcrumbs span {
    margin: 0 var(--spacing-xs);
    color: var(--text-light);
}

.breadcrumbs .current {
    font-weight: 600;
    color: var(--primary);
}

/* ===== GLOBAL FOOTER ===== */
.global-footer {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ecf0f1;
    margin-top: var(--spacing-xl);
    font-family: var(--font-primary);
    position: relative;
    overflow: hidden;
}

.global-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-brand h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-brand .brand-icon {
    font-size: 1.8rem;
}

.footer-description {
    color: #b2bec3;
    line-height: 1.6;
    font-size: 0.95rem;
}

.footer-section h4 {
    color: white;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-link {
    color: #dfe6e9;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    display: inline-block;
}

.footer-link:hover {
    color: var(--accent-light);
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-copyright {
    color: #636e72;
    font-size: 0.85rem;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: #dfe6e9;
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 1.1rem;
}

.social-link:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-2px);
}

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

.footer-desc {
    color: #b2bec3;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-link {
    color: #dfe6e9;
    text-decoration: none;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-link:hover {
    opacity: 1;
    text-decoration: underline;
}

.copyright {
    font-size: 0.85rem;
    color: #636e72;
    /* Darker gray for subtle look */
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.5rem;
    margin-top: 1rem;
}

/* Sidebar Layout (File Explorer) */
.explorer-container {
    display: flex;
    min-height: calc(100vh - 80px);
    /* Subtract Top Nav Height */
    direction: rtl;
    /* Ensure Right-to-Left layout */
}

/* The Left Sidebar (which is actually Right in RTL) */
.explorer-sidebar {
    width: 320px;
    background: #ffffff;
    border-left: 1px solid #dfe6e9;
    /* Border on the left side (visually central in RTL) */
    padding: 1.5rem;
    overflow-y: auto;
    flex-shrink: 0;
    box-shadow: -4px 0 15px rgba(0, 0, 0, 0.03);
    height: calc(100vh - 80px);
    /* Full height minus nav */
    position: sticky;
    top: 80px;
}

/* The Main Content Area */
.explorer-content {
    flex-grow: 1;
    padding: 3rem;
    background: #f8f9fa;
    overflow-y: auto;
    min-height: calc(100vh - 80px);
}

/* Tree View List Styling */
.file-tree {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tree-item {
    margin-bottom: 0.8rem;
}

/* Collapsible Folder Title */
.tree-toggle {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    color: #2d3436;
    font-weight: 700;
    transition: all 0.2s ease;
    user-select: none;
    font-family: 'Heebo', sans-serif;
    font-size: 1.05rem;
}

/* Hover Effect for Folders */
.tree-toggle:hover {
    background: #f1f3f5;
    color: #10a37f;
    /* Green accent */
    transform: translateX(-3px);
}

/* Icons */
.tree-icon {
    font-size: 1.2rem;
}

/* Arrow Icon for Open/Close */
.arrow-icon {
    font-size: 0.8rem;
    color: #b2bec3;
    transition: transform 0.3s ease;
    margin-right: auto;
    /* Push arrow to the far left in RTL */
}

/* Nested Children (Files) */
.tree-children {
    list-style: none;
    padding-right: 1.6rem;
    /* Indentation for RTL */
    margin-top: 0.4rem;
    display: none;
    /* Hidden by default */
    position: relative;
}

/* Vertical Guide Line for Threading */
.tree-children::before {
    content: '';
    position: absolute;
    right: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #f1f3f5;
}

.tree-item.open>.tree-children {
    display: block;
    animation: slideDown 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Rotate Arrow when Open */
.tree-item.open>.tree-toggle .arrow-icon {
    transform: rotate(180deg);
}

/* Individual File Link Styling */
.file-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 1rem;
    text-decoration: none;
    color: #636e72;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.2s;
    margin-bottom: 4px;
    position: relative;
    z-index: 1;
    /* Above guide line */
}

/* File Link Hover */
.file-link:hover {
    background: #e3f2fd;
    color: #1a1a2e;
    transform: translateX(-5px);
}

/* Active File State */
.file-link.active {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(26, 26, 46, 0.2);
}

/* External Link Style (e.g. for Excel) */
.file-link.external {
    color: #0984e3;
    border: 1px dashed #74b9ff;
}

.file-link.external:hover {
    background: #f0f9ff;
    border-color: #0984e3;
}

/* Mobile Responsive Adjustments */
@media (max-width: 900px) {
    .explorer-container {
        flex-direction: column;
    }

    .explorer-sidebar {
        width: 100%;
        height: auto;
        position: static;
        border-left: none;
        border-bottom: 1px solid #dfe6e9;
        padding: 1rem;
    }

    .explorer-content {
        padding: 1.5rem;
    }

    .tree-toggle {
        padding: 0.6rem;
    }
}

/* Slide Down Animation */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== STANDARD COMPONENTS ===== */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent);
    color: white;
}

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

/* Feature Cards */
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-light);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.feature-card h3 {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Code Blocks */
.code-block {
    background: var(--primary);
    color: #e8f4fd;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    direction: ltr;
    text-align: left;
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    position: relative;
    border: 1px solid var(--border-color);
}

.code-block .copy-btn {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.code-block .copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Tabs */
.tab-nav {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.tab-btn {
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--accent);
    background: rgba(108, 92, 231, 0.05);
}

.tab-btn.active {
    color: var(--accent);
    background: rgba(108, 92, 231, 0.1);
    border-bottom: 3px solid var(--accent);
    margin-bottom: calc(-1 * var(--spacing-sm) - 2px);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

/* Lists */
.styled-list {
    list-style: none;
    padding: 0;
}

.styled-list li {
    position: relative;
    padding-right: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.styled-list li::before {
    content: '▶';
    position: absolute;
    right: 0;
    color: var(--accent);
    font-size: 0.8rem;
}

/* Checklist */
.checklist {
    background: var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

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

.checklist li {
    position: relative;
    padding-right: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.checklist li::before {
    content: '☐';
    position: absolute;
    right: 0;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Typography */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .page-header .subtitle {
        font-size: 1rem;
    }
    
    .content-card h2 {
        font-size: 1.5rem;
    }
    
    .page-container {
        padding: 0 var(--spacing-sm) var(--spacing-lg);
    }
    
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Body Defaults */
body {
    font-family: var(--font-primary);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    padding-top: 80px;
}

/* Reset margins for headings in cards */
.content-card h2:first-child,
.content-card h3:first-child {
    margin-top: 0;
}

.content-card p:last-child,
.content-card ul:last-child,
.content-card ol:last-child {
    margin-bottom: 0;
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 900px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: white;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem var(--spacing-lg) var(--spacing-lg);
        transition: right 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
        gap: var(--spacing-lg);
        z-index: 10000;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links.active::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.4);
        z-index: -1;
        backdrop-filter: blur(4px);
    }
    
    .nav-link {
        font-size: 1.1rem;
        width: 100%;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-link.active::after {
        display: none;
    }
}

@media (max-width: 600px) {
    .global-nav {
        padding: 0.8rem var(--spacing-sm);
    }
    
    .page-container {
        padding: 0 var(--spacing-sm) var(--spacing-lg);
    }
    
    .footer-container {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
}
/* ===== HAMBURGER MENU ===== */
.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 10001;
    flex-direction: column;
    gap: 4px;
}

.hamburger-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.hamburger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

@media (max-width: 900px) {
    .hamburger-menu {
        display: flex;
    }
}

/* Body scroll lock when menu is open */
body.menu-open {
    overflow: hidden;
}
/* ===== MEDIA & GRAPHICS ===== */

/* Image containers */
.image-container {
    margin: var(--spacing-md) 0;
    text-align: center;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
}

.image-caption {
    background: var(--border-light);
    padding: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Video containers */
.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    margin: var(--spacing-md) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Diagram containers */
.diagram-container {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
    text-align: center;
    position: relative;
}

.diagram-title {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

/* Interactive elements */
.interactive-demo {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border: 2px dashed var(--accent-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
    text-align: center;
}

.demo-button {
    background: var(--accent);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
    margin: var(--spacing-xs);
}

.demo-button:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

/* Progress indicators */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-light);
    border-radius: 4px;
    overflow: hidden;
    margin: var(--spacing-sm) 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-light) 100%);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Step indicators */
.step-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--accent);
    color: white;
    border-radius: 50%;
    font-weight: 600;
    font-size: 0.9rem;
}

.step-content {
    flex: 1;
}

/* Icon graphics */
.icon-large {
    font-size: 4rem;
    margin: var(--spacing-md) 0;
    display: block;
    text-align: center;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.icon-medium {
    font-size: 2.5rem;
    margin: var(--spacing-sm) 0;
    display: inline-block;
}

/* Flowchart styles */
.flowchart {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.flow-step {
    background: white;
    border: 2px solid var(--accent-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    min-width: 200px;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--accent);
    margin: var(--spacing-xs) 0;
}

/* Comparison tables */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.comparison-table th {
    background: var(--accent);
    color: white;
    padding: var(--spacing-md);
    font-weight: 600;
    text-align: center;
}

.comparison-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.comparison-table tr:nth-child(even) {
    background: var(--border-light);
}

/* Responsive media */
@media (max-width: 768px) {
    .flowchart {
        gap: var(--spacing-sm);
    }
    
    .flow-step {
        min-width: 150px;
        padding: var(--spacing-sm);
    }
    
    .icon-large {
        font-size: 3rem;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-sm);
    }
}

/* ===== TEASER BOXES ===== */
.teaser-box {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
    border-right: 4px solid;
}

.teaser-idea {
    background-color: #e8f5e9;
    border-right-color: #28a745;
    color: #155724;
}

.teaser-idea .teaser-title {
    color: #155724;
}

.teaser-warning {
    background-color: #fff3cd;
    border-right-color: #ffc107;
    color: #856404;
}

.teaser-warning .teaser-title {
    color: #856404;
}

.teaser-secret {
    background-color: #f0e6ff;
    border-right-color: #a259ff;
    color: #6a0a7f;
}

.teaser-secret .teaser-title {
    color: #6a0a7f;
}

.teaser-bonus {
    background-color: #e8f4f8;
    border-right-color: #00bcd4;
    color: #00695c;
}

.teaser-bonus .teaser-title {
    color: #00695c;
}

.teaser-title {
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}