/* ==========================================================================
   Global Variables & Reset
   ========================================================================== */
   :root {
    /* Color Palette - Light, Professional, Trustworthy */
    --color-bg: #ffffff;
    --color-surface: #f8f9fa;
    --color-text-main: #1e2329;
    --color-text-muted: #707a8a;
    --color-accent: #fcd535; /* Binance Yellow */
    --color-accent-hover: #f0c808;
    --color-border: #eaecef;
    --color-success: #0ecb81;
    --color-danger: #f6465d;
    --color-info: #2962ff;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Layout */
    --container-width: 1200px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 64px;
    
    /* Shadows & Radii */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    color: var(--color-text-main);
    background-color: var(--color-bg);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

ul {
    list-style: none;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.bg-surface {
    background-color: var(--color-surface);
}

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

section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-main);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #1e2329;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    height: 70px;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-accent-hover);
}

.logo-icon {
    width: 28px;
    height: 28px;
}

.main-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.main-nav a {
    font-weight: 500;
    color: var(--color-text-main);
}

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

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

/* Custom Language Selector */
.lang-selector {
    position: relative;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
}

.lang-current {
    display: flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    transition: background-color 0.2s;
    font-size: 0.75rem;
}

.lang-current:hover {
    background-color: var(--color-border);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    min-width: 120px;
    display: none;
    flex-direction: column;
    z-index: 1001;
}

.lang-dropdown.show {
    display: flex;
}

.lang-option {
    padding: 10px 16px;
    color: var(--color-text-main);
    transition: background-color 0.2s;
}

.lang-option:hover {
    background-color: var(--color-surface);
}

.lang-option.active {
    color: var(--color-accent-hover);
    font-weight: 600;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-main);
    padding: 4px;
    z-index: 1002;
}

.mobile-menu-btn svg {
    width: 24px;
    height: 24px;
}

/* ==========================================================================
   Hero Section & Bento Grid
   ========================================================================== */
.hero-section {
    padding-top: 140px; /* Account for fixed header */
    padding-bottom: var(--spacing-xl);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background-color: rgba(252, 213, 53, 0.2);
    color: #b38f00;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-accent);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-left h1 {
    font-size: 3.2rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-left p {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 95%;
}

/* Referral Box */
.referral-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-surface);
    border: 2px dashed var(--color-accent);
    border-radius: var(--radius-md);
    padding: 12px 20px;
    margin-bottom: var(--spacing-lg);
    max-width: 450px;
}

.ref-info {
    display: flex;
    flex-direction: column;
}

.ref-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.ref-code {
    font-size: 1.5rem;
    font-family: var(--font-family);
    letter-spacing: 2px;
    color: var(--color-text-main);
}

.btn-copy {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-main);
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-copy:hover {
    background-color: var(--color-surface);
    border-color: var(--color-accent);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.hero-note {
    font-size: 0.85rem !important;
    color: var(--color-text-muted) !important;
    margin-bottom: 0 !important;
}

/* Bento Grid */
.hero-cards-bento {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 20px;
    position: relative;
}

.bento-card {
    background: var(--glass-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.bento-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.bento-card:hover.card-top-left { transform: translateY(15px); }
.bento-card:hover.card-bottom-right { transform: translateY(-25px); }

.card-icon-svg {
    width: 40px;
    height: 40px;
    margin-bottom: var(--spacing-md);
}

.text-accent { color: var(--color-accent-hover); }
.text-success { color: var(--color-success); }
.text-info { color: var(--color-info); }
.text-danger { color: var(--color-danger); }

.bento-card h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.bento-card p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   Discount Section
   ========================================================================== */
.discount-content {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.discount-text h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-main);
}

.discount-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.check-list {
    margin-bottom: var(--spacing-lg);
}

.check-list li {
    position: relative;
    padding-left: 32px;
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-success);
    font-weight: bold;
    font-size: 1.2rem;
}

.alert-box {
    background-color: #fff8e1;
    border: 1px solid #ffe082;
    border-left: 4px solid var(--color-accent-hover);
    padding: 16px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: #8f6b00;
    line-height: 1.6;
}

.alert-box.danger {
    background-color: rgba(246, 70, 93, 0.05);
    border: 1px solid rgba(246, 70, 93, 0.2);
    border-left: 4px solid var(--color-danger);
    color: #c92a3f;
}

.mt-4 { margin-top: 1rem; }

/* ==========================================================================
   Tutorial Steps
   ========================================================================== */
.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    max-width: 800px;
    margin: 0 auto;
}

.tutorial-step {
    display: flex;
    gap: var(--spacing-lg);
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.step-badge {
    flex-shrink: 0;
    background: var(--color-accent);
    color: #1e2329;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    height: fit-content;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.step-content p {
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.highlight-link {
    color: var(--color-info);
    text-decoration: underline;
    font-weight: 600;
}

/* ==========================================================================
   App Download Guide
   ========================================================================== */
.download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.download-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: transform 0.3s ease;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.apple-card { border-top: 4px solid #000; }
.android-card { border-top: 4px solid #3DDC84; }

.download-icon {
    display: flex;
    justify-content: center;
    color: var(--color-text-main);
    margin-bottom: var(--spacing-md);
}

.apple-card .download-icon { color: #000; }
.android-card .download-icon { color: #3DDC84; }

.download-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.download-card p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.download-steps {
    text-align: left;
    padding-left: 20px;
    color: var(--color-text-main);
}

.download-steps li {
    margin-bottom: 8px;
}

/* ==========================================================================
   KYC Section
   ========================================================================== */
.kyc-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.kyc-box {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.kyc-box h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--color-text-main);
}

.kyc-box p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}
/* ==========================================================================
   Main Layout: Sidebar + Content
   ========================================================================== */
.layout-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    align-items: start;
}

/* Sidebar & Sticky TOC */
.sidebar {
    position: sticky;
    top: 100px; /* Below fixed header */
    height: calc(100vh - 120px);
    overflow-y: auto;
    padding-right: var(--spacing-md);
}

/* Custom Scrollbar for Sidebar */
.sidebar::-webkit-scrollbar {
    width: 4px;
}
.sidebar::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

.sticky-toc {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    background-color: #f8f9fa; /* Light gray background for TOC */
}

.toc-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.15rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-main);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 12px;
    position: sticky;
    top: 0;
    background-color: #f8f9fa;
    z-index: 10;
}

.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toc-link {
    display: block;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.4;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.toc-link:hover {
    background-color: var(--color-bg);
    color: var(--color-text-main);
    border-left-color: var(--color-border);
}

.toc-link.active {
    background-color: rgba(252, 213, 53, 0.15); /* Slightly darker yellow background */
    color: #997a00; /* Darker yellow text for better contrast */
    border-left-color: var(--color-accent-hover);
    font-weight: 600;
}

/* Main Content Sections */
.main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.content-section {
    background: var(--color-bg);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    scroll-margin-top: 120px; /* Increased for anchor links to clear header */
}

.content-section h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-main);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 16px;
}

.content-section h3 {
    font-size: 1.35rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-main);
}

.content-section p {
    font-size: 1.05rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

/* ==========================================================================
   CSS Mockups (Registration, KYC, 2FA)
   ========================================================================== */
.css-mockup-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    max-width: 400px;
    margin: var(--spacing-lg) auto;
}

.mockup-header-bar {
    background: var(--color-surface);
    padding: 12px 16px;
    font-weight: 600;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
    font-size: 1.1rem;
}

/* Registration Form Mockup */
.mockup-form {
    padding: 24px;
}

.mockup-input-group {
    margin-bottom: 20px;
}

.mockup-input-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

.mockup-input {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 1rem;
    color: var(--color-text-main);
    background: #f8f9fa;
}

.highlight-border {
    border-color: var(--color-success);
    background: rgba(14, 203, 129, 0.05);
}

.mockup-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 6px;
}

.mockup-arrow {
    float: right;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.mockup-success-text {
    font-size: 0.85rem;
    color: var(--color-success);
    margin-top: 8px;
    font-weight: 600;
}

.mockup-btn {
    background: var(--color-accent);
    color: #1e2329;
    text-align: center;
    padding: 14px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    margin-top: 24px;
}

/* KYC Mockup */
.mockup-kyc-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    align-items: center;
}

.mockup-id-card {
    width: 200px;
    height: 120px;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    padding: 16px;
    gap: 16px;
    background: var(--color-surface);
}

.id-avatar {
    width: 40px;
    height: 50px;
    background: #e2e8f0;
    border-radius: 4px;
}

.id-lines {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.id-line {
    height: 6px;
    background: #cbd5e1;
    border-radius: 3px;
}

.mockup-face-scan {
    text-align: center;
}

.scan-circle {
    width: 100px;
    height: 100px;
    border: 3px solid var(--color-success);
    border-radius: 50%;
    margin: 0 auto 12px;
    position: relative;
    overflow: hidden;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(14, 203, 129, 0.5);
    box-shadow: 0 0 8px var(--color-success);
    animation: scan 2s infinite linear;
}

@keyframes scan {
    0% { top: 0; }
    50% { top: 100%; }
    100% { top: 0; }
}

/* 2FA Phone Mockup */
.phone-mockup {
    border-radius: 24px;
    border: 8px solid #1e2329;
    position: relative;
    background: #1e2329;
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 20px;
    background: #1e2329;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
    z-index: 10;
}

.auth-app {
    background: #ffffff;
    height: 300px;
    border-radius: 16px;
    padding-top: 30px;
}

.auth-header {
    padding: 16px;
    font-size: 1.2rem;
    font-weight: 700;
    border-bottom: 1px solid var(--color-border);
}

.auth-item {
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
}

.auth-name {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.auth-code-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.auth-code {
    font-size: 2rem;
    font-family: var(--font-family);
    letter-spacing: 4px;
    color: var(--color-info);
    font-weight: 600;
}

.auth-timer {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: conic-gradient(var(--color-info) 100%, #e2e8f0 0);
}

.auth-timer.half {
    background: conic-gradient(var(--color-info) 50%, #e2e8f0 0);
}

/* Responsive adjustments for layout */
@media (max-width: 1024px) {
    .layout-wrapper {
        grid-template-columns: 1fr; /* Stack sidebar on top */
    }
    
    .sidebar {
        position: static;
        height: auto;
        padding-right: 0;
    }
    
    .sticky-toc {
        max-height: 300px;
        overflow-y: auto;
    }
}

/* ==========================================================================
   Stats Section
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-text-main);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent-hover);
    margin-bottom: 12px;
}

.stat-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Review Section & CSS Mockup
   ========================================================================== */
.review-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.review-list li {
    display: flex;
    gap: 16px;
    margin-bottom: var(--spacing-lg);
}

.check-icon-svg {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--color-success);
    margin-top: 2px;
}

.review-list h3 {
    margin-bottom: var(--spacing-lg);
}

.review-list strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.review-list p {
    color: var(--color-text-muted);
}

/* CSS Mockup Drawing */
.css-mockup {
    background: #1e2329; /* Dark theme for mockup */
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid #2b3139;
    aspect-ratio: 16/10;
    display: flex;
    flex-direction: column;
}

.mockup-header {
    height: 30px;
    background: #2b3139;
    display: flex;
    align-items: center;
    padding: 0 12px;
    gap: 8px;
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.mockup-header-line {
    flex-grow: 1;
    height: 4px;
    background: #1e2329;
    border-radius: 2px;
    margin-left: 12px;
}

.mockup-body {
    display: flex;
    flex-grow: 1;
    padding: 12px;
    gap: 12px;
}

.mockup-sidebar {
    width: 20%;
    background: #2b3139;
    border-radius: 4px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mockup-line {
    height: 8px;
    background: #474d57;
    border-radius: 4px;
}

.w-full { width: 100%; }
.w-3-4 { width: 75%; }
.w-1-2 { width: 50%; }
.mt-auto { margin-top: auto; }

.mockup-main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mockup-top-stats {
    display: flex;
    gap: 12px;
    height: 20%;
}

.mockup-stat-box {
    flex: 1;
    background: #2b3139;
    border-radius: 4px;
}

.mockup-chart-area {
    flex-grow: 1;
    background: #2b3139;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.candlestick {
    position: absolute;
    width: 4px;
    border-radius: 2px;
}

.candlestick::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 140%;
    top: -20%;
}

.candlestick.up {
    background: var(--color-success);
}
.candlestick.up::before {
    background: var(--color-success);
}

.candlestick.down {
    background: var(--color-danger);
}
.candlestick.down::before {
    background: var(--color-danger);
}

.mockup-svg-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

/* Pros and Cons Grid */
.pros-cons-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.pros-box, .cons-box {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.pros-box {
    border-top: 4px solid var(--color-success);
}

.cons-box {
    border-top: 4px solid var(--color-danger);
}

.pros-title, .cons-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.pros-title { color: var(--color-success); }
.cons-title { color: var(--color-danger); }

.pros-cons-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    color: var(--color-text-muted);
}

.pros-cons-list li::before {
    content: '•';
    position: absolute;
    left: 8px;
    color: var(--color-text-main);
    font-weight: bold;
}

/* ==========================================================================
   Fees Section
   ========================================================================== */
.fee-table-container {
    overflow-x: auto;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.fee-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.fee-table th, .fee-table td {
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border);
}

.fee-table th {
    background-color: var(--color-surface);
    font-weight: 600;
    color: var(--color-text-main);
}

.fee-table tr:last-child td {
    border-bottom: none;
}

.fee-table tbody tr:hover {
    background-color: var(--color-surface);
}

.fee-tips {
    display: flex;
    gap: 16px;
    background-color: #fff8e1; /* Light yellow */
    border: 1px solid #ffe082;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    align-items: flex-start;
}

.fee-tip-icon {
    font-size: 1.5rem;
}

.fee-tip-text {
    color: #8f6b00;
    font-size: 0.95rem;
}

/* ==========================================================================
   Core Products Section
   ========================================================================== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.product-card {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.product-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.product-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--color-text-main);
}

.product-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ==========================================================================
   Security Section
   ========================================================================== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.feature-item {
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon-svg {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-accent-hover);
}

.feature-item h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.feature-item p {
    color: var(--color-text-muted);
}

/* ==========================================================================
   Step-by-Step Guide
   ========================================================================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.step-card {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.step-number {
    font-size: 4rem;
    font-weight: 900;
    color: var(--color-surface);
    position: absolute;
    top: -10px;
    right: 10px;
    z-index: 0;
}

.step-card h3 {
    position: relative;
    z-index: 1;
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--color-text-main);
}

.step-card p {
    position: relative;
    z-index: 1;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    background: var(--color-bg);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background-color 0.2s;
    color: var(--color-text-main);
}

.faq-question:hover {
    background-color: var(--color-surface);
}

.faq-icon-svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
    color: var(--color-text-muted);
}

.faq-item.active .faq-icon-svg {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    padding: 0 20px 20px;
    max-height: 500px; /* Arbitrary large value for animation */
}

/* ==========================================================================
   Trust / E-E-A-T Section
   ========================================================================== */
.trust-box {
    display: flex;
    gap: var(--spacing-lg);
    background: var(--color-bg);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    align-items: center;
}

.trust-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    color: var(--color-info);
    background: rgba(41, 98, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.trust-content h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.trust-content p {
    color: var(--color-text-muted);
    font-size: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: #1e2329;
    color: #b7bdc6;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

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

.footer-brand .logo {
    color: #fff;
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    max-width: 300px;
}

.footer-links h4 {
    color: #fff;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links a:hover {
    color: var(--color-accent-hover);
}

.footer-disclaimer {
    border-top: 1px solid #2b3139;
    padding-top: var(--spacing-lg);
    font-size: 0.85rem;
    color: #848e9c;
}

.footer-disclaimer p {
    margin-bottom: 8px;
}

.copyright-text {
    margin-top: var(--spacing-md);
    text-align: center;
}

/* ==========================================================================
   Articles Section (SEO Boost)
   ========================================================================== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.article-card {
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

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

.article-meta {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    font-weight: 500;
}

.article-title {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--color-text-main);
    line-height: 1.4;
}

.article-excerpt {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
    flex-grow: 1;
    line-height: 1.6;
}

.article-read-more {
    font-size: 0.95rem;
    color: var(--color-accent);
    font-weight: 600;
    display: flex;
    align-items: center;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .layout-wrapper {
        grid-template-columns: 1fr; /* Stack sidebar on top */
    }
    
    .sidebar {
        position: sticky;
        top: 70px; /* Below mobile header */
        height: auto;
        padding-right: 0;
        z-index: 9;
    }
    
    .sticky-toc {
        max-height: 250px;
        overflow-y: auto;
        margin-bottom: var(--spacing-md);
    }

    .hero-grid, .review-content {
        grid-template-columns: 1fr;
    }
    
    .hero-left {
        text-align: center;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-left p {
        margin: 0 auto var(--spacing-lg);
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .stats-grid, .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* Mobile Navigation */
    .nav-actions {
        display: none; /* Hidden by default on mobile */
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-md) 0;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-actions.show {
        display: flex;
    }
    
    .main-nav {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }
    
    .main-nav a {
        padding: 12px var(--spacing-lg);
        width: 100%;
        display: block;
    }
    
    .main-nav a:hover {
        background-color: var(--color-surface);
    }
    
    .lang-selector {
        margin: 12px var(--spacing-lg);
        align-self: flex-start;
    }
    
    .lang-dropdown {
        top: 100%;
        bottom: auto;
        margin-bottom: 0;
        margin-top: 4px;
        left: 0;
        right: auto;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    /* Layout Adjustments */
    .hero-section {
        padding-top: 100px;
    }
    
    .hero-left h1 {
        font-size: 2.5rem;
    }
    
    .hero-cards-bento {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    
    .card-top-left, .card-bottom-right {
        transform: none;
    }
    
    .bento-card:hover.card-top-left, .bento-card:hover.card-bottom-right {
        transform: translateY(-5px);
    }
    
    .grid-3, .stats-grid, .steps-grid, .pros-cons-grid, .product-grid, .download-grid, .kyc-content, .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .tutorial-step {
        flex-direction: column;
    }
    
    .referral-box {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .trust-box {
        flex-direction: column;
        text-align: center;
    }
    
    .fee-table th, .fee-table td {
        padding: 12px 8px;
        font-size: 0.85rem;
    }
}