/**
 * DrugHub Market Portal - Enhanced Stylesheet
 * Modern dark theme with beautiful animations and effects
 */

/* ===== CSS Variables ===== */
:root {
    /* Colors - Dark Theme */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a28;
    --color-bg-card: #1e1e2e;
    --color-bg-elevated: #252538;

    /* Text Colors */
    --color-text-primary: #f0f0f5;
    --color-text-secondary: #c0c0d0;
    --color-text-muted: #888898;
    --color-text-dim: #60606f;

    /* Accent Colors - Cyberpunk Style */
    --color-accent-primary: #00d9ff;
    --color-accent-secondary: #8b5cf6;
    --color-accent-tertiary: #f59e0b;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00d9ff 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --gradient-tertiary: linear-gradient(135deg, #10b981 0%, #00d9ff 100%);
    --gradient-dark: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    --gradient-glow: radial-gradient(circle at center, rgba(0, 217, 255, 0.1) 0%, transparent 70%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow-cyan: 0 0 20px rgba(0, 217, 255, 0.3);
    --shadow-glow-purple: 0 0 20px rgba(139, 92, 246, 0.3);

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Fonts */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Monaco', 'Courier New', monospace;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Background Effect */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient-glow);
    opacity: 0.3;
    animation: bgFloat 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-5%, -5%); }
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

a:hover {
    color: var(--color-accent-secondary);
}

ul, ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-secondary);
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* ===== Header ===== */
.site-header {
    background: rgba(18, 18, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.03em;
}

.logo-badge {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    margin: 5px 0;
    transition: var(--transition-normal);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
}

.nav-item a {
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-normal);
    position: relative;
}

.nav-item a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0%;
    height: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
    transition: width var(--transition-normal);
}

.nav-item.active a,
.nav-item a:hover {
    color: var(--color-accent-primary);
    background: rgba(0, 217, 255, 0.05);
}

.nav-item.active a::before,
.nav-item a:hover::before {
    width: 80%;
}

/* ===== Hero Section ===== */
.hero {
    background: var(--gradient-dark);
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.15) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.7; }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--color-text-secondary);
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(30, 30, 46, 0.6);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 217, 255, 0.1);
    min-width: 120px;
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(30, 30, 46, 0.8);
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow-cyan);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Sections ===== */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: clamp(2rem, 4vw, 2.75rem);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-content {
    max-width: 900px;
    margin: 0 auto;
}

/* ===== Feature Cards ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.feature-card {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow-cyan);
    background: var(--color-bg-elevated);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 0 10px rgba(0, 217, 255, 0.5));
}

.feature-card h3 {
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.35rem;
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== Tech Cards ===== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.tech-card {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-tertiary) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: all var(--transition-normal);
}

.tech-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent-secondary);
    box-shadow: var(--shadow-glow-purple);
}

.tech-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent-primary);
}

.tech-card p {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

/* ===== Economic Cards ===== */
.eco-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.eco-card {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid rgba(16, 185, 129, 0.2);
    text-align: center;
    transition: all var(--transition-normal);
}

.eco-card:hover {
    transform: scale(1.05);
    border-color: var(--color-success);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.eco-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #10b981, #00d9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: var(--spacing-sm) 0;
}

.eco-card h3 {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* ===== Alerts ===== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
    border-left: 4px solid;
    backdrop-filter: blur(10px);
    font-size: 0.95rem;
}

.alert strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 1.05rem;
}

.alert-info {
    background: rgba(0, 217, 255, 0.08);
    border-color: var(--color-accent-primary);
    color: var(--color-text-secondary);
}

.alert-info strong {
    color: var(--color-accent-primary);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.08);
    border-color: var(--color-warning);
    color: var(--color-text-secondary);
}

.alert-warning strong {
    color: var(--color-warning);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.08);
    border-color: var(--color-danger);
    color: var(--color-text-secondary);
}

.alert-danger strong {
    color: var(--color-danger);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-glow-cyan);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(0, 217, 255, 0.4);
}

.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 2px solid var(--color-accent-primary);
}

.btn-secondary:hover {
    background: rgba(0, 217, 255, 0.1);
    border-color: var(--color-accent-secondary);
    transform: translateY(-3px);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

/* ===== Guides Grid ===== */
.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.guide-card {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: all var(--transition-normal);
    display: block;
}

.guide-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow-cyan);
    background: var(--color-bg-elevated);
}

.guide-card h3 {
    font-size: 1.25rem;
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-sm);
}

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

/* ===== FAQ Section ===== */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.faq-item {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent-secondary);
    transition: all var(--transition-normal);
}

.faq-item:hover {
    background: var(--color-bg-elevated);
    border-left-color: var(--color-accent-primary);
    transform: translateX(5px);
}

.faq-item h3 {
    font-size: 1.15rem;
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-sm);
}

.faq-item p {
    font-size: 0.95rem;
}

/* ===== Tables ===== */
.comparison-table-wrapper {
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg-card);
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-table th {
    background: var(--color-bg-tertiary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    color: var(--color-accent-primary);
}

.comparison-table tbody tr {
    transition: background var(--transition-fast);
}

.comparison-table tbody tr:hover {
    background: rgba(0, 217, 255, 0.03);
}

.status-active {
    color: var(--color-success);
    font-weight: 600;
}

.status-exit {
    color: var(--color-danger);
    font-weight: 600;
}

.risk-low { color: var(--color-success); font-weight: 600; }
.risk-medium { color: var(--color-warning); font-weight: 600; }
.risk-high { color: var(--color-danger); font-weight: 600; }

/* ===== Timeline ===== */
.timeline {
    position: relative;
    padding: var(--spacing-lg) 0;
    margin: var(--spacing-lg) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 22px;
    top: 8px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--gradient-primary);
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.timeline-date {
    flex: 0 0 150px;
    font-weight: 700;
    color: var(--color-accent-primary);
    padding-left: 60px;
}

.timeline-content {
    flex: 1;
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent-primary);
}

/* ===== Trust Factors ===== */
.trust-factors {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.trust-item {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    background: var(--color-bg-card);
}

.trust-high { border-color: var(--color-success); }
.trust-medium { border-color: var(--color-warning); }
.trust-low { border-color: var(--color-danger); }

/* ===== Disclaimer ===== */
.disclaimer-box {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
    border: 2px solid var(--color-danger);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.disclaimer-box h2 {
    color: var(--color-danger);
    margin-bottom: var(--spacing-md);
}

.disclaimer-box ul {
    margin-top: var(--spacing-sm);
}

/* ===== Mirrors Section ===== */
.mirrors-section {
    background: rgba(0, 0, 0, 0.3);
    padding: var(--spacing-xl) 0;
    position: relative;
}

.mirrors-section pre {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 217, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-success);
    margin: var(--spacing-md) 0;
    -webkit-overflow-scrolling: touch;
}

.mirrors-section code {
    background: rgba(0, 217, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.875em;
}

/* ===== Page Header ===== */
.page-header {
    background: var(--gradient-dark);
    padding: var(--spacing-xl) 0;
    text-align: center;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

.page-header h1 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    color: var(--color-text-secondary);
    font-size: 1.15rem;
}

/* ===== Content Section ===== */
.content-section {
    padding: var(--spacing-xl) 0;
}

.content-section h2 {
    color: var(--color-accent-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.content-section h3 {
    color: var(--color-accent-secondary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.content-section ul,
.content-section ol {
    margin-bottom: var(--spacing-md);
}

.content-section li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.8;
}

.content-section code {
    background: rgba(0, 217, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--color-accent-primary);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(0, 217, 255, 0.1);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3,
.footer-section h4 {
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.footer-section p {
    font-size: 0.95rem;
}

.footer-section ul {
    list-style: none;
    margin-left: 0;
}

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

.footer-section ul li a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--color-accent-primary);
}

.footer-disclaimer {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-warning);
    margin-bottom: var(--spacing-md);
}

.footer-bottom {
    text-align: center;
    color: var(--color-text-dim);
    font-size: 0.875rem;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ===== Intro Section ===== */
.intro-section {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) var(--spacing-md);
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.intro-section h2,
.intro-section h3 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Feature Details ===== */
.feature-details {
    max-width: 900px;
    margin: var(--spacing-xl) auto;
}

.feature-details h3 {
    font-size: 1.75rem;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-details h4 {
    color: var(--color-accent-secondary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

/* ===== Mobile Menu Styles ===== */
.main-nav.mobile-open {
    display: block !important;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(18, 18, 26, 0.98);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 217, 255, 0.2);
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.3s ease-out;
    z-index: 999;
}

.main-nav.mobile-open ul {
    flex-direction: column;
    padding: var(--spacing-md) 0;
    gap: 0;
}

.main-nav.mobile-open .nav-item {
    width: 100%;
}

.main-nav.mobile-open .nav-item a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    text-align: left;
}

.main-nav.mobile-open .nav-item a::before {
    display: none;
}

.main-nav.mobile-open .nav-item:last-child a {
    border-bottom: none;
}

/* Hamburger Animation */
.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    html { font-size: 14px; }

    .hero {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .stat-item {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .mobile-menu-toggle {
        display: block;
        z-index: 1001;
    }

    .main-nav {
        display: none;
    }

    .features-grid,
    .tech-grid,
    .eco-grid,
    .guides-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 10px;
    }

    .timeline-item::before {
        left: 2px;
    }

    .timeline-date {
        flex: 0 0 auto;
        padding-left: 40px;
        font-size: 0.875rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .intro-section,
    .guides-cta-section {
        margin-left: 0;
        margin-right: 0;
        border-radius: 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    /* Better touch targets */
    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 1rem;
        min-height: 44px;
    }

    .nav-item a {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    /* Mobile tables */
    .comparison-table-wrapper {
        margin-left: calc(var(--spacing-sm) * -1);
        margin-right: calc(var(--spacing-sm) * -1);
        border-radius: 0;
    }

    .comparison-table {
        font-size: 0.875rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-sm);
        font-size: 0.8rem;
    }

    /* Code blocks */
    pre {
        font-size: 0.75rem;
        padding: var(--spacing-sm);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Alerts */
    .alert {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }

    /* Feature cards on mobile */
    .feature-card,
    .tech-card,
    .eco-card,
    .guide-card {
        padding: var(--spacing-md);
    }

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

    /* Stats on mobile */
    .stat-value {
        font-size: 2rem;
    }

    .eco-value {
        font-size: 2rem;
    }

    /* Footer on mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* Timeline on mobile */
    .timeline-content {
        padding: var(--spacing-sm);
    }
}

/* ===== Mobile-specific enhancements ===== */
@media (max-width: 768px) {
    /* Improve touch targets */
    a, button {
        min-height: 44px;
        min-width: 44px;
    }

    /* Better scroll for code blocks */
    pre, code {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        word-wrap: break-word;
        white-space: pre-wrap;
    }

    /* PGP blocks on mobile */
    .mirrors-section pre,
    .alert pre {
        font-size: 0.7rem;
        line-height: 1.4;
        padding: var(--spacing-sm);
    }

    /* Horizontal scroll for wide content */
    .comparison-table-wrapper,
    .table-wrapper {
        -webkit-overflow-scrolling: touch;
    }

    /* Sticky header optimization */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    /* Improve readability */
    body {
        font-size: 16px; /* Prevent iOS zoom on input focus */
    }

    p, li {
        line-height: 1.8;
    }

    /* Better spacing for sections */
    section {
        padding: var(--spacing-lg) 0;
    }

    /* Optimize hero for mobile */
    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero::before {
        width: 400px;
        height: 400px;
    }

    /* Mobile-friendly alerts */
    .alert strong {
        font-size: 1rem;
    }

    /* Mirrors section mobile */
    .mirrors-section {
        padding: var(--spacing-lg) 0;
    }

    .mirrors-section pre {
        font-size: 0.7rem;
        padding: var(--spacing-sm);
        line-height: 1.5;
        border-radius: var(--radius-sm);
    }

    .mirrors-section h2 {
        font-size: 1.5rem;
        padding: 0 var(--spacing-sm);
    }

    /* Page header mobile */
    .page-header {
        padding: var(--spacing-lg) 0;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .page-header p {
        font-size: 1rem;
    }

    /* Content section mobile */
    .content-section {
        padding: var(--spacing-lg) 0;
    }

    .content-section h2 {
        font-size: 1.5rem;
        margin-top: var(--spacing-lg);
    }

    .content-section h3 {
        font-size: 1.25rem;
    }

    .content-section pre {
        font-size: 0.75rem;
        padding: var(--spacing-sm);
        margin-left: calc(var(--spacing-sm) * -1);
        margin-right: calc(var(--spacing-sm) * -1);
        border-radius: 0;
    }

    /* Improve list readability on mobile */
    .content-section ul,
    .content-section ol {
        padding-left: var(--spacing-md);
    }

    /* Wiki page mobile */
    .wiki-hero {
        padding: var(--spacing-lg) 0;
    }

    .wiki-stat-number {
        font-size: 2rem;
    }

    .wiki-badge {
        font-size: 0.75rem;
        padding: 4px 12px;
    }
}

/* ===== Wiki Page Styles ===== */

/* Wiki Hero */
.wiki-hero {
    background: var(--gradient-dark);
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.wiki-hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.wiki-hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.wiki-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid var(--color-accent-secondary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent-secondary);
    margin-bottom: var(--spacing-md);
}

.wiki-hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: var(--spacing-md);
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.wiki-hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.wiki-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.wiki-stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(30, 30, 46, 0.6);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(139, 92, 246, 0.2);
    min-width: 140px;
    transition: all var(--transition-normal);
}

.wiki-stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent-secondary);
    box-shadow: var(--shadow-glow-purple);
}

.wiki-stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.wiki-stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Wiki Category Section */
.wiki-category-section {
    padding: var(--spacing-xl) 0;
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent-secondary);
}

.category-icon {
    font-size: 3rem;
    filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.5));
}

.category-title {
    font-size: 2rem;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.category-description {
    color: var(--color-text-secondary);
    margin: 0;
}

/* Wiki Guides Grid */
.wiki-guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.wiki-guide-card {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.wiki-guide-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.wiki-guide-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow-cyan);
}

.wiki-guide-card:hover::before {
    transform: scaleX(1);
}

.wiki-guide-card.featured {
    border-color: var(--color-accent-secondary);
    background: linear-gradient(135deg, var(--color-bg-card) 0%, rgba(139, 92, 246, 0.05) 100%);
}

.wiki-guide-card.featured:hover {
    box-shadow: var(--shadow-glow-purple);
    border-color: var(--color-accent-secondary);
}

.guide-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.guide-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 0 8px rgba(0, 217, 255, 0.4));
}

.guide-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.guide-badge.beginner {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.guide-badge.intermediate {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
    border: 1px solid var(--color-warning);
}

.guide-badge.advanced {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
}

.guide-badge.important {
    background: rgba(139, 92, 246, 0.15);
    color: var(--color-accent-secondary);
    border: 1px solid var(--color-accent-secondary);
}

.guide-title {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.guide-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    flex: 1;
    margin-bottom: var(--spacing-md);
}

.guide-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.875rem;
}

.guide-duration {
    color: var(--color-text-muted);
}

.guide-level {
    color: var(--color-accent-primary);
    font-weight: 600;
}

/* Quick Navigation */
.wiki-quick-nav {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl) 0;
}

.quick-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.quick-nav-card {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: all var(--transition-normal);
}

.quick-nav-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow-cyan);
}

.nav-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    filter: drop-shadow(0 0 10px rgba(0, 217, 255, 0.5));
}

.quick-nav-card h3 {
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.quick-nav-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-links a {
    color: var(--color-accent-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-accent-primary);
    transform: translateX(5px);
}

/* Resources Section */
.wiki-resources {
    padding: var(--spacing-xl) 0;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.resource-card {
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: all var(--transition-normal);
}

.resource-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent-secondary);
    box-shadow: var(--shadow-glow-purple);
}

.resource-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.5));
}

.resource-card h3 {
    color: var(--color-accent-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.35rem;
}

.resource-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

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

.resource-list li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.resource-list li:last-child {
    border-bottom: none;
}

/* Wiki FAQ */
.wiki-faq {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl) 0;
}

/* CTA Section */
.wiki-cta {
    padding: var(--spacing-xl) 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-tertiary) 100%);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 2px solid var(--color-accent-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

.cta-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 0 15px rgba(0, 217, 255, 0.5));
}

.cta-box h2 {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.cta-box p {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive Wiki */
@media (max-width: 768px) {
    .wiki-hero {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }

    .category-header {
        flex-direction: column;
        text-align: center;
    }

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

    .wiki-guides-grid,
    .quick-nav-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }

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

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== Print Styles ===== */
@media print {
    .site-header,
    .site-footer,
    .cta-buttons,
    .mobile-menu-toggle {
        display: none;
    }
}