/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --secondary: #764ba2;
    --accent: #f5576c;
    --success: #38ef7d;
    --warning: #fee140;

    /* Neutrals */
    --dark: #1a1a2e;
    --dark-light: #16213e;
    --gray-900: #0f0f23;
    --gray-800: #1e1e3f;
    --gray-700: #2d2d5a;
    --gray-600: #4a4a7a;
    --gray-500: #6b6b9a;
    --gray-400: #9999bb;
    --gray-300: #ccccdd;
    --gray-200: #e8e8f0;
    --gray-100: #f5f5fa;
    --white: #ffffff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-dark: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);

    /* Typography */
    --font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-navbar: 1000;
    --z-modal: 1100;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-300);
    background-color: var(--gray-900);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
}

input {
    font-family: inherit;
    border: none;
    outline: none;
}

/* ===== Utilities ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

.animate-fade-up {
    animation: fadeUp 0.8s ease forwards;
    opacity: 0;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

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

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-navbar);
    padding: var(--spacing-lg) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--spacing-md) 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
}

.logo-icon {
    font-size: var(--font-size-2xl);
}

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

.nav-link {
    position: relative;
    color: var(--gray-400);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: all var(--transition-base);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4xl) var(--spacing-lg);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(102, 126, 234, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(118, 75, 162, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(245, 87, 108, 0.1) 0%, transparent 50%),
        var(--gradient-dark);
}

.floating-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.1;
    animation: float 8s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    bottom: -50px;
    left: -50px;
    animation-delay: 2s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 10%;
    animation-delay: 4s;
}

.shape-4 {
    width: 150px;
    height: 150px;
    top: 30%;
    right: 20%;
    animation-delay: 6s;
}

.hero-content {
    text-align: center;
    max-width: 800px;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
}

.title-line {
    display: block;
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    color: var(--white);
}

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

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--gray-400);
    margin-bottom: var(--spacing-2xl);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-3xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-3xl);
    justify-content: center;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 900;
    color: var(--white);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-500);
    font-size: var(--font-size-sm);
    animation: bounce 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--gray-500);
    border-bottom: 2px solid var(--gray-500);
    transform: rotate(45deg);
}

/* ===== Section Styles ===== */
section {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(102, 126, 234, 0.2);
    color: var(--primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.section-desc {
    font-size: var(--font-size-lg);
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Trends Section ===== */
.trends-section {
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
}

.trends-filter {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-400);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--white);
    background: var(--gradient-primary);
    border-color: transparent;
}

.trends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.trend-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.trend-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow);
}

.trend-card.featured {
    grid-column: span 2;
}

.trend-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.trend-card.featured .trend-image {
    aspect-ratio: 21/9;
}

.trend-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-icon {
    font-size: 4rem;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
}

.trend-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.trend-badge.hot {
    background: var(--accent);
    color: var(--white);
}

.trend-badge.new {
    background: var(--success);
    color: var(--dark);
}

.trend-content {
    padding: var(--spacing-lg);
}

.trend-category {
    display: inline-block;
    font-size: var(--font-size-xs);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.trend-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.trend-excerpt {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.trend-meta {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.trends-more {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

/* ===== Categories Section ===== */
.categories-section {
    background: var(--gray-900);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.category-card {
    padding: var(--spacing-2xl);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: rgba(102, 126, 234, 0.4);
    box-shadow: var(--shadow-glow);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.category-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.category-desc {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-bottom: var(--spacing-lg);
}

.category-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.category-tags li {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    background: rgba(102, 126, 234, 0.15);
    color: var(--primary);
    border-radius: var(--radius-sm);
}

.category-count {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* ===== Insights Section ===== */
.insights-section {
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.insight-card {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
}

.insight-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

/* Chart */
.chart-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.donut-chart {
    position: relative;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: conic-gradient(
        #667eea 0deg 126deg,
        #38ef7d 126deg 216deg,
        #f5576c 216deg 288deg,
        #4facfe 288deg 360deg
    );
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-center {
    position: absolute;
    width: 120px;
    height: 120px;
    background: var(--gray-800);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.chart-total {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
}

.chart-label {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.chart-legend {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--gray-400);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-sm);
}

/* Keywords */
.keywords-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.keyword {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: calc(var(--size) * 0.8rem);
    background: rgba(102, 126, 234, 0.15);
    color: var(--primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

.keyword:hover {
    background: var(--gradient-primary);
    color: var(--white);
    transform: scale(1.1);
}

/* Districts */
.districts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.district-item {
    display: grid;
    grid-template-columns: 80px 1fr 40px;
    align-items: center;
    gap: var(--spacing-md);
}

.district-name {
    font-size: var(--font-size-sm);
    color: var(--gray-300);
}

.district-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    width: var(--width);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

.district-value {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary);
    text-align: right;
}

/* ===== Newsletter Section ===== */
.newsletter-section {
    background: var(--gradient-primary);
    padding: var(--spacing-3xl) 0;
}

.newsletter-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.newsletter-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.newsletter-text p {
    color: rgba(255, 255, 255, 0.8);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-md);
    flex: 1;
    max-width: 500px;
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-form .btn {
    background: var(--white);
    color: var(--primary);
    white-space: nowrap;
}

.newsletter-form .btn:hover {
    background: var(--gray-100);
}

/* ===== About Section ===== */
.about-section {
    background: var(--gray-900);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.about-text {
    color: var(--gray-400);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
}

.feature-icon {
    font-size: var(--font-size-xl);
}

.feature-text {
    font-weight: 500;
    color: var(--gray-300);
}

.visual-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.visual-item {
    aspect-ratio: 1;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    transition: transform var(--transition-base);
}

.visual-item:hover {
    transform: scale(1.05) rotate(2deg);
}

.visual-item:nth-child(2) {
    transform: translateY(var(--spacing-xl));
}

.visual-item:nth-child(4) {
    transform: translateY(var(--spacing-xl));
}

.visual-item:nth-child(2):hover,
.visual-item:nth-child(4):hover {
    transform: translateY(var(--spacing-xl)) scale(1.05) rotate(-2deg);
}

/* ===== SEO Section ===== */
.seo-section {
    background: var(--gray-800);
    padding: var(--spacing-3xl) 0;
}

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

.seo-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.seo-content p {
    color: var(--gray-400);
    line-height: 1.9;
    margin-bottom: var(--spacing-lg);
    text-align: justify;
}

/* ===== Footer ===== */
.footer {
    background: var(--gray-900);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-desc {
    color: var(--gray-500);
    margin-bottom: var(--spacing-lg);
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
}

.footer-links h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

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

.footer-links a {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: var(--font-size-xl);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    z-index: var(--z-dropdown);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .insights-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .visual-grid {
        max-width: 400px;
        margin: 0 auto;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--gray-800);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-4xl) var(--spacing-xl);
        transition: right var(--transition-base);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
    }

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

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

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

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

    .hero-stats {
        gap: var(--spacing-xl);
    }

    .stat-number {
        font-size: var(--font-size-3xl);
    }

    .trend-card.featured {
        grid-column: span 1;
    }

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

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

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

    .newsletter-form {
        width: 100%;
        max-width: none;
        flex-direction: column;
    }

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

    .about-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .donut-chart {
        width: 160px;
        height: 160px;
    }

    .chart-center {
        width: 100px;
        height: 100px;
    }
}

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

    html {
        scroll-behavior: auto;
    }
}

/* ===== Breadcrumbs ===== */
.breadcrumbs {
    background: var(--gray-800);
    padding: var(--spacing-md) 0;
    margin-top: 70px;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.breadcrumb-item {
    color: var(--gray-500);
}

.breadcrumb-item a {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--primary);
}

.breadcrumb-item:not(:last-child)::after {
    content: '›';
    margin-left: var(--spacing-sm);
    color: var(--gray-600);
}

.breadcrumb-item.active {
    color: var(--white);
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.page-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Content Section ===== */
.content-section {
    padding: var(--spacing-4xl) 0;
    background: var(--gray-900);
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.article-content {
    color: var(--gray-300);
    line-height: 1.9;
}

.article-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    margin: var(--spacing-2xl) 0 var(--spacing-lg);
}

.article-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--white);
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.article-content p {
    margin-bottom: var(--spacing-lg);
}

.article-content ul,
.article-content ol {
    margin: var(--spacing-lg) 0;
    padding-left: var(--spacing-xl);
}

.article-content li {
    margin-bottom: var(--spacing-sm);
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
}

.article-content a:hover {
    color: var(--secondary);
}

.legal-content h2 {
    font-size: var(--font-size-xl);
}

.legal-content h3 {
    font-size: var(--font-size-lg);
}

/* ===== Values Grid ===== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.value-item {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
}

.value-icon {
    font-size: var(--font-size-3xl);
    display: block;
    margin-bottom: var(--spacing-md);
}

.value-item h3 {
    font-size: var(--font-size-lg);
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.value-item p {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin: 0;
}

/* ===== CTA Box ===== */
.cta-box {
    background: var(--gradient-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    margin-top: var(--spacing-2xl);
}

.cta-box h3 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.cta-box p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
}

/* ===== Contact Page ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info h2,
.contact-form-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.contact-info p {
    color: var(--gray-400);
    margin-bottom: var(--spacing-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.contact-method {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
}

.contact-icon {
    font-size: var(--font-size-3xl);
}

.contact-details h3 {
    font-size: var(--font-size-lg);
    color: var(--white);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    margin: 0;
    color: var(--gray-300);
}

.contact-note {
    font-size: var(--font-size-sm);
    color: var(--gray-500) !important;
}

.social-section h3 {
    font-size: var(--font-size-lg);
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.social-section p {
    margin-bottom: var(--spacing-lg);
}

.social-links-large {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.social-link-large {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    color: var(--gray-300);
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.social-link-large:hover {
    background: var(--gradient-primary);
    color: var(--white);
}

/* ===== Contact Form ===== */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-300);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

.form-group select {
    cursor: pointer;
}

.btn-full {
    width: 100%;
}

.form-note {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: var(--spacing-md);
}

/* ===== Intro Section ===== */
.intro-section {
    background: var(--gray-800);
    padding: var(--spacing-3xl) 0;
}

.intro-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.intro-text {
    max-width: 900px;
    margin: 0 auto;
}

.intro-text p {
    color: var(--gray-400);
    line-height: 1.9;
    margin-bottom: var(--spacing-lg);
    text-align: justify;
}

.intro-text a {
    color: var(--primary);
}

/* ===== FAQ Section ===== */
.faq-section {
    background: var(--gray-900);
    padding: var(--spacing-4xl) 0;
}

.guide-content {
    max-width: 900px;
    margin: 0 auto var(--spacing-2xl);
}

.guide-text p {
    color: var(--gray-400);
    line-height: 1.9;
    margin-bottom: var(--spacing-lg);
}

.guide-text a {
    color: var(--primary);
}

.faq-grid {
    display: grid;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
}

.faq-question {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.faq-answer p {
    color: var(--gray-400);
    line-height: 1.8;
    margin: 0;
}

/* ===== Latest Articles Section ===== */
.latest-articles-section {
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
    padding: var(--spacing-4xl) 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.article-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.article-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow);
}

.article-image {
    aspect-ratio: 16/9;
}

.article-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.article-content {
    padding: var(--spacing-lg);
}

.article-category {
    display: inline-block;
    font-size: var(--font-size-xs);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.article-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.article-title a {
    color: inherit;
    transition: color var(--transition-fast);
}

.article-title a:hover {
    color: var(--primary);
}

.article-excerpt {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.article-read {
    color: var(--primary);
}

.articles-more {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

/* ===== Blog Listing ===== */
.blog-listing {
    padding: var(--spacing-4xl) 0;
    background: var(--gray-900);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.blog-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-glow);
}

.blog-card-image {
    position: relative;
    aspect-ratio: 16/9;
}

.blog-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--gradient-primary);
    color: var(--white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.blog-card-content {
    padding: var(--spacing-lg);
}

.blog-card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.blog-card-title a {
    color: inherit;
    transition: color var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--primary);
}

.blog-card-excerpt {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-bottom: var(--spacing-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.blog-date {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.blog-read-more {
    font-size: var(--font-size-sm);
    color: var(--primary);
    font-weight: 500;
}

/* ===== Blog Post ===== */
.blog-post {
    padding: var(--spacing-4xl) 0;
    background: var(--gray-900);
}

.post-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.post-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(102, 126, 234, 0.2);
    color: var(--primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.post-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.post-meta-large {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.post-featured-image {
    margin-bottom: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.featured-placeholder {
    width: 100%;
    aspect-ratio: 21/9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.post-content {
    max-width: 800px;
    margin: 0 auto;
}

.post-intro {
    font-size: var(--font-size-lg);
    color: var(--gray-300);
    line-height: 1.9;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: rgba(102, 126, 234, 0.1);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
}

.post-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--white);
    margin: var(--spacing-2xl) 0 var(--spacing-lg);
}

.post-content p {
    color: var(--gray-400);
    line-height: 1.9;
    margin-bottom: var(--spacing-lg);
}

.post-content a {
    color: var(--primary);
}

.post-content a:hover {
    text-decoration: underline;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-2xl) 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    color: var(--gray-400);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-full);
}

.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: var(--spacing-2xl) auto 0;
    padding-top: var(--spacing-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===== Related Posts ===== */
.related-posts {
    background: var(--gray-800);
    padding: var(--spacing-4xl) 0;
}

.related-posts .articles-grid {
    grid-template-columns: repeat(2, 1fr);
}

/* ===== Responsive Updates ===== */
@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

@media (max-width: 768px) {
    .breadcrumbs {
        margin-top: 60px;
    }

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

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

    .related-posts .articles-grid {
        grid-template-columns: 1fr;
    }

    .post-navigation {
        flex-direction: column;
    }

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