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

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

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #e0e6ed;
    background-color: #0a0e16;
    overflow-x: hidden;
}

/* ===== CSS Variables ===== */
:root {
    /* Color Palette - Dark Theme */
    --primary-bg: #0a0e16;
    --secondary-bg: #1a1f2e;
    --tertiary-bg: #2d3748;
    --accent-bg: #4a5568;
    
    --primary-text: #e0e6ed;
    --secondary-text: #a0aec0;
    --muted-text: #718096;
    
    --primary-accent: #4299e1;
    --secondary-accent: #63b3ed;
    --highlight-accent: #f6e05e;
    --success-accent: #48bb78;
    --discord-accent: #5865f2;
    
    --border-color: #2d3748;
    --hover-border: #4a5568;
    
    /* Gradients */
    --primary-gradient: linear-gradient(135deg, #4299e1 0%, #63b3ed 100%);
    --dark-gradient: linear-gradient(135deg, #1a1f2e 0%, #2d3748 100%);
    --hero-gradient: linear-gradient(135deg, rgba(10, 14, 22, 0.8) 0%, rgba(26, 31, 46, 0.9) 100%);
    
    /* Shadows */
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --button-shadow: 0 4px 15px rgba(66, 153, 225, 0.4);
    --text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 80px 0;
    --element-spacing: 2rem;
    
    /* Border Radius */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== Utility Classes ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: var(--section-padding);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-text);
    font-family: 'Georgia', 'Times New Roman', serif;
    letter-spacing: 0.02em;
    position: relative;
}

.highlight {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Ad Banners ===== */
.ad-banner {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    text-align: center;
    padding: 1rem;
    position: relative;
    z-index: 500;
}

.ad-container {
    max-width: var(--container-width);
    margin: 0 auto;
}

.header-ad {
    position: relative;
    top: 0;
    margin-bottom: 1rem;
}

.ad-placeholder {
    background: var(--tertiary-bg);
    border: 2px dashed var(--border-color);
    color: var(--muted-text);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 90px;
}

.header-ad .ad-placeholder {
    min-height: 90px;
}

.sidebar-ad {
    position: fixed;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    z-index: 100;
    width: 300px;
}

.sidebar-ad .ad-placeholder {
    min-height: 250px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.content-ad .ad-placeholder,
.footer-ad .ad-placeholder {
    min-height: 120px;
}

/* ===== Navigation ===== */
/* 防止任何 CSS 影響導航列的樣式 */
.navbar,
.navbar *,
.nav-container,
.nav-brand,
.nav-menu,
.nav-link {
    zoom: 1 !important;
    -webkit-text-size-adjust: 100% !important;
    -moz-text-size-adjust: 100% !important;
    -ms-text-size-adjust: 100% !important;
    text-size-adjust: 100% !important;
}
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 31, 46, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
    transition: all var(--transition-normal);
    transform: none !important;
    -webkit-transform: none !important;
    -moz-transform: none !important;
    -ms-transform: none !important;
    scale: 1 !important;
    -webkit-scale: 1 !important;
    font-size: inherit !important;
    will-change: auto !important;
}

.navbar.scrolled {
    background: rgba(26, 31, 46, 0.98);
    box-shadow: var(--card-shadow);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--primary-text);
}

.logo {
    height: 40px;
    width: auto;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--secondary-text);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-text);
    background: var(--tertiary-bg);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-text);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* ===== Hero Section ===== */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0e16 0%, #1a1f2e 50%, #2d3748 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: 
        radial-gradient(circle at 20% 50%, rgba(66, 153, 225, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(99, 179, 237, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(246, 224, 94, 0.05) 0%, transparent 50%),
        linear-gradient(135deg, #0a0e16 0%, #1a1f2e 50%, #2d3748 100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--hero-gradient);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 0 1rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: var(--text-shadow);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--secondary-text);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: var(--text-shadow);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.4s both;
}

/* ===== Buttons ===== */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: var(--discord-accent);
    color: white;
    box-shadow: var(--button-shadow);
}

.cta-button.primary:hover {
    background: #4752c4;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(88, 101, 242, 0.6);
}

.cta-button.secondary {
    background: transparent;
    color: var(--primary-text);
    border: 2px solid var(--primary-accent);
}

.cta-button.secondary:hover {
    background: var(--primary-accent);
    transform: translateY(-2px);
    box-shadow: var(--button-shadow);
}

.cta-button.large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

.cta-button i {
    font-size: 1.2em;
}

/* Discord Buttons */
.discord-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--discord-accent);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.discord-button:hover {
    background: #4752c4;
    transform: translateY(-2px);
}

.discord-button.secondary {
    background: var(--tertiary-bg);
    color: var(--primary-text);
}

.discord-button.secondary:hover {
    background: var(--accent-bg);
}

/* ===== Content Sections ===== */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.content-text h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
}

.content-text p {
    color: var(--secondary-text);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--secondary-text);
}

.feature-list i {
    color: var(--success-accent);
    font-size: 1.1rem;
}

.content-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--card-shadow);
}

/* ===== Features Grid ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--secondary-bg);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(66, 153, 225, 0.1), transparent);
    transition: left var(--transition-slow);
}

.feature-card:hover::before {
    left: 100%;
}

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

.feature-icon {
    background: var(--primary-gradient);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
}

.feature-card p {
    color: var(--secondary-text);
    line-height: 1.6;
}

/* ===== Discord Community Section ===== */
.community-section {
    background: var(--primary-bg);
}

/* Community Introduction */
.community-intro {
    margin-bottom: 3rem;
}

.intro-card {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    margin: 0 auto;
    max-width: 800px;
    text-align: left;
}

.intro-card h3 {
    color: var(--primary-text);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 600;
}

.intro-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.intro-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--tertiary-bg);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--primary-accent);
}

.intro-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.intro-item p {
    color: var(--secondary-text);
    line-height: 1.6;
    margin: 0;
    flex: 1;
}

.intro-item:last-child {
    border-left-color: var(--highlight-accent);
}

.intro-item:last-child .intro-icon {
    color: var(--highlight-accent);
}

/* Community Welcome */
.community-welcome {
    margin-bottom: 4rem;
}

.welcome-card {
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--tertiary-bg) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    margin: 0 auto;
    max-width: 900px;
    text-align: center;
}

.welcome-card h3 {
    color: var(--primary-text);
    font-size: 2rem;
    margin-bottom: 2rem;
    font-weight: 600;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-description {
    text-align: left;
    margin-bottom: 3rem;
}

.welcome-description p {
    color: var(--secondary-text);
    line-height: 1.8;
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
}

.highlight-text {
    color: var(--primary-text) !important;
    font-weight: 500;
    font-style: italic;
    border-left: 4px solid var(--highlight-accent);
    padding-left: 1rem;
    background: rgba(246, 224, 94, 0.05);
    padding: 1rem;
    border-radius: var(--border-radius-sm);
}

.welcome-card h4 {
    color: var(--primary-text);
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 600;
    text-align: center;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    text-align: left;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--secondary-bg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-2px);
    border-color: var(--primary-accent);
    box-shadow: 0 5px 15px rgba(66, 153, 225, 0.2);
}

.feature-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.feature-content h5 {
    color: var(--primary-text);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-content p {
    color: var(--secondary-text);
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

.discord-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.discord-card {
    background: var(--secondary-bg);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-normal);
}

.discord-card.main-discord {
    border: 2px solid var(--discord-accent);
    background: linear-gradient(135deg, var(--secondary-bg) 0%, rgba(88, 101, 242, 0.1) 100%);
}

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

.discord-icon {
    background: var(--discord-accent);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
    color: white;
}

.discord-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
}

.discord-card p {
    color: var(--secondary-text);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* ===== Community Stats ===== */
.community-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    text-align: center;
    margin-top: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.stat-item {
    padding: 1.5rem;
    background: var(--tertiary-bg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--secondary-text);
    font-size: 1rem;
    font-weight: 500;
}

/* ===== Discord Widget Section ===== */
.discord-widget-section {
    background: var(--primary-bg);
    border-top: 1px solid var(--border-color);
}

.discord-widget-container {
    display: flex;
    justify-content: center;
    margin: 2rem 0;
    padding: 2rem;
    background: rgba(30, 41, 59, 0.5);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.discord-widget-container iframe {
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.discord-actions {
    text-align: center;
    margin-top: 2rem;
}

.btn-discord {
    background: #5865f2;
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-discord:hover {
    background: #4752c4;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(88, 101, 242, 0.3);
}

.btn-discord i {
    font-size: 1.2em;
}

/* Responsive Discord Widget */
@media (max-width: 768px) {
    .discord-widget-container {
        padding: 1rem;
    }
    
    .discord-widget-container iframe {
        width: 100%;
        max-width: 350px;
        height: 400px;
    }
}

/* ===== CTA Section ===== */
.cta-section {
    background: var(--dark-gradient);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-text);
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--secondary-text);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
    background: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1rem;
}

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

.footer-section h4 {
    color: var(--primary-text);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p {
    color: var(--secondary-text);
    margin-bottom: 1rem;
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--secondary-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--tertiary-bg);
    color: var(--secondary-text);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--discord-accent);
    color: white;
}

.contact-discord {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--discord-accent);
    text-decoration: none;
    font-weight: 500;
}

.contact-discord:hover {
    color: #4752c4;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--muted-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-accent);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--secondary-accent);
    transform: translateY(-5px);
    box-shadow: var(--button-shadow);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ===== Responsive Design ===== */
@media (max-width: 1400px) {
    .sidebar-ad {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(26, 31, 46, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        border-top: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        gap: 1rem;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-card {
        padding: 2rem 1.5rem;
        text-align: center;
    }
    
    .intro-item {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }
    
    .intro-icon {
        align-self: center;
    }
    
    .welcome-card {
        padding: 2rem 1.5rem;
    }
    
    .welcome-card h3 {
        font-size: 1.5rem;
    }
    
    .welcome-description {
        text-align: center;
    }
    
    .feature-list {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-item {
        padding: 1rem;
        text-align: center;
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .feature-icon {
        align-self: center;
    }
    
    .discord-grid {
        grid-template-columns: 1fr;
    }
    
    .community-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button.large {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .feature-card,
    .discord-card {
        padding: 1.5rem;
    }
    
    .community-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
}

/* ===== Print Styles ===== */
@media print {
    .navbar,
    .back-to-top,
    .ad-banner,
    .sidebar-ad {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .section {
        page-break-inside: avoid;
    }
}

/* ===== High Contrast Mode ===== */
@media (prefers-contrast: high) {
    :root {
        --primary-text: #ffffff;
        --secondary-text: #e0e0e0;
        --border-color: #ffffff;
    }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}