:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #15151f;
    --bg-card-hover: #1e1e2a;
    
    --neon-cyan: #00f5ff;
    --neon-purple: #bf00ff;
    --neon-pink: #ff00aa;
    --neon-green: #00ff88;
    --neon-orange: #ff6b00;
    --neon-blue: #0088ff;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    
    --border-color: #2a2a3a;
    --border-glow: rgba(0, 245, 255, 0.3);
    
    --gradient-cyber: linear-gradient(135deg, #00f5ff 0%, #bf00ff 100%);
    --gradient-fire: linear-gradient(135deg, #ff6b00 0%, #ff00aa 100%);
    --gradient-matrix: linear-gradient(135deg, #00ff88 0%, #00f5ff 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0f 0%, #12121a 100%);
    
    --shadow-neon: 0 0 20px rgba(0, 245, 255, 0.3);
    --shadow-purple: 0 0 20px rgba(191, 0, 255, 0.3);
    --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.5);
    
    --font-main: 'Orbitron', 'Noto Sans SC', -apple-system, sans-serif;
    --font-body: 'Rajdhani', 'Noto Sans SC', sans-serif;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(0, 245, 255, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(191, 0, 255, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 255, 136, 0.02) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

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

a:hover {
    color: var(--neon-purple);
    text-shadow: 0 0 10px var(--neon-cyan);
}

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

.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--neon-cyan);
    color: var(--bg-primary);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    z-index: 10000;
    transition: var(--transition-fast);
}

.skip-link:focus {
    top: 10px;
}

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.main-header.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: var(--shadow-neon);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-cyber);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-main);
    font-weight: 900;
    font-size: 20px;
    color: var(--bg-primary);
    box-shadow: var(--shadow-neon);
    position: relative;
    overflow: hidden;
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 40%, rgba(255,255,255,0.3) 50%, transparent 60%);
    animation: logoShine 3s infinite;
}

@keyframes logoShine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.logo-text {
    font-family: var(--font-main);
    font-size: 18px;
    font-weight: 700;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    font-family: var(--font-main);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    transition: var(--transition-fast);
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--neon-cyan);
    background: rgba(0, 245, 255, 0.1);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 60%;
}

.nav-link.active {
    text-shadow: 0 0 10px var(--neon-cyan);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-box {
    position: relative;
}

.search-input {
    width: 200px;
    padding: 10px 16px 10px 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    transition: var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: var(--shadow-neon);
    width: 260px;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-family: var(--font-main);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 245, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--neon-cyan);
    border: 1px solid var(--neon-cyan);
}

.btn-secondary:hover {
    background: rgba(0, 245, 255, 0.1);
    box-shadow: var(--shadow-neon);
}

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

.btn-ghost:hover {
    color: var(--neon-cyan);
    border-color: var(--neon-cyan);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 14px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--neon-cyan);
    transition: var(--transition-fast);
}

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(180deg, transparent 0%, var(--bg-primary) 100%),
        radial-gradient(circle at 30% 30%, rgba(0, 245, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 70% 70%, rgba(191, 0, 255, 0.15) 0%, transparent 40%);
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(50px); }
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--neon-cyan);
    border-radius: 50%;
    animation: particleFloat 15s infinite;
    opacity: 0.6;
}

@keyframes particleFloat {
    0%, 100% { 
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { 
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

.hero-content {
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(0, 245, 255, 0.1);
    border: 1px solid rgba(0, 245, 255, 0.3);
    border-radius: var(--radius-xl);
    font-family: var(--font-main);
    font-size: 12px;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
    animation: badgePulse 2s infinite;
}

@keyframes badgePulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 245, 255, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(0, 245, 255, 0); }
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--neon-green);
    border-radius: 50%;
    animation: dotBlink 1s infinite;
}

@keyframes dotBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-family: var(--font-main);
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-title .highlight {
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-cyber);
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

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

.stat-value {
    font-family: var(--font-main);
    font-size: 42px;
    font-weight: 900;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    animation: scrollBounce 2s infinite;
}

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

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--neon-cyan), transparent);
}

.section {
    padding: 100px 24px;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(191, 0, 255, 0.1);
    border: 1px solid rgba(191, 0, 255, 0.3);
    border-radius: var(--radius-xl);
    font-family: var(--font-main);
    font-size: 11px;
    color: var(--neon-purple);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-main);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.category-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    cursor: pointer;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-cyber);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.category-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-cyan);
    box-shadow: var(--shadow-neon);
}

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

.category-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 245, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
    position: relative;
}

.category-icon::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: var(--radius-md);
    background: var(--gradient-cyber);
    opacity: 0;
    z-index: -1;
    transition: var(--transition-fast);
}

.category-card:hover .category-icon::after {
    opacity: 1;
}

.category-name {
    font-family: var(--font-main);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.category-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.category-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.category-count {
    font-size: 13px;
    color: var(--text-muted);
}

.category-count strong {
    color: var(--neon-cyan);
    font-weight: 600;
}

.category-link {
    font-family: var(--font-main);
    font-size: 12px;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.experts-section {
    background: var(--bg-secondary);
}

.experts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.expert-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
}

.expert-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--gradient-cyber);
    opacity: 0.1;
    transition: var(--transition-normal);
}

.expert-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-purple);
    box-shadow: var(--shadow-purple);
}

.expert-card:hover::before {
    opacity: 0.2;
}

.expert-header {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.expert-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid var(--neon-cyan);
    padding: 3px;
    background: var(--bg-tertiary);
    position: relative;
}

.expert-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.expert-avatar::after {
    content: '';
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    border: 1px solid var(--neon-cyan);
    opacity: 0;
    animation: avatarPulse 2s infinite;
}

@keyframes avatarPulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 0;
    }
    50% { 
        transform: scale(1.1);
        opacity: 0.5;
    }
}

.expert-info {
    flex: 1;
}

.expert-name {
    font-family: var(--font-main);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.expert-title {
    font-size: 13px;
    color: var(--neon-cyan);
    margin-bottom: 8px;
}

.expert-badges {
    display: flex;
    gap: 6px;
}

.expert-badge {
    padding: 3px 10px;
    background: rgba(191, 0, 255, 0.2);
    border: 1px solid rgba(191, 0, 255, 0.3);
    border-radius: var(--radius-sm);
    font-size: 10px;
    color: var(--neon-purple);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.expert-rank {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: var(--gradient-fire);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 700;
    color: white;
}

.expert-body {
    padding: 0 24px 24px;
}

.expert-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.expert-stat {
    text-align: center;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.expert-stat-value {
    font-family: var(--font-main);
    font-size: 20px;
    font-weight: 700;
    color: var(--neon-cyan);
    margin-bottom: 4px;
}

.expert-stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.expert-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.expert-tag {
    padding: 4px 12px;
    background: rgba(0, 245, 255, 0.1);
    border: 1px solid rgba(0, 245, 255, 0.2);
    border-radius: var(--radius-xl);
    font-size: 12px;
    color: var(--text-secondary);
}

.resources-section {
    background: var(--bg-primary);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.resource-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
}

.resource-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-green);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.2);
}

.resource-image {
    height: 180px;
    background: var(--gradient-matrix);
    position: relative;
    overflow: hidden;
}

.resource-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    animation: resourceShine 3s infinite;
}

@keyframes resourceShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.resource-type {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 10px;
    color: var(--neon-green);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.resource-content {
    padding: 24px;
}

.resource-title {
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}

.resource-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.resource-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.resource-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.resource-author img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--neon-green);
}

.resource-author-name {
    font-size: 13px;
    color: var(--text-secondary);
}

.resource-date {
    font-size: 12px;
    color: var(--text-muted);
}

.activity-section {
    background: var(--bg-secondary);
}

.activity-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 32px;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.activity-item:hover {
    border-color: var(--neon-cyan);
    background: var(--bg-card-hover);
}

.activity-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.activity-icon.new {
    background: rgba(0, 255, 136, 0.2);
    color: var(--neon-green);
}

.activity-icon.hot {
    background: rgba(255, 107, 0, 0.2);
    color: var(--neon-orange);
}

.activity-icon.trending {
    background: rgba(191, 0, 255, 0.2);
    color: var(--neon-purple);
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 4px;
}

.activity-desc {
    font-size: 13px;
    color: var(--text-muted);
}

.activity-time {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}

.activity-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.sidebar-title {
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-title::before {
    content: '';
    width: 4px;
    height: 16px;
    background: var(--gradient-cyber);
    border-radius: 2px;
}

.hot-topics {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hot-topic {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.hot-topic:hover {
    background: var(--bg-card-hover);
}

.hot-topic-rank {
    width: 24px;
    height: 24px;
    background: var(--gradient-fire);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-main);
    font-size: 12px;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.hot-topic-content {
    flex: 1;
}

.hot-topic-title {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
    line-height: 1.4;
}

.hot-topic-views {
    font-size: 11px;
    color: var(--text-muted);
}

.cta-section {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at center, rgba(0, 245, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-family: var(--font-main);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.cta-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.main-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 80px 24px 40px;
}

.footer-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 60px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--neon-cyan);
    border-color: var(--neon-cyan);
    color: var(--bg-primary);
    box-shadow: var(--shadow-neon);
}

.footer-column h4 {
    font-family: var(--font-main);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--neon-cyan);
    padding-left: 8px;
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-legal a:hover {
    color: var(--neon-cyan);
}

.page-header {
    padding: 140px 24px 60px;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 30% 50%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(191, 0, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.page-header-content {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.page-title {
    font-family: var(--font-main);
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.page-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

.page-breadcrumb a {
    color: var(--text-secondary);
}

.page-breadcrumb a:hover {
    color: var(--neon-cyan);
}

.page-breadcrumb span {
    color: var(--neon-cyan);
}

.filter-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-label {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
}

.filter-select {
    padding: 8px 32px 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 13px;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2300f5ff' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
}

.filter-select:focus {
    outline: none;
    border-color: var(--neon-cyan);
}

.filter-tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-tertiary);
    padding: 4px;
    border-radius: var(--radius-md);
}

.filter-tab {
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-tab:hover {
    color: var(--text-primary);
}

.filter-tab.active {
    background: var(--neon-cyan);
    color: var(--bg-primary);
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
}

.page-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.page-btn:hover {
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
}

.page-btn.active {
    background: var(--gradient-cyber);
    border-color: transparent;
    color: var(--bg-primary);
}

.page-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.podium-section {
    padding: 60px 24px;
    background: var(--bg-secondary);
}

.podium-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 24px;
}

.podium-item {
    text-align: center;
    position: relative;
}

.podium-item.first {
    order: 2;
}

.podium-item.second {
    order: 1;
}

.podium-item.third {
    order: 3;
}

.podium-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 16px;
    position: relative;
}

.podium-item.first .podium-avatar {
    width: 120px;
    height: 120px;
}

.podium-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--neon-cyan);
}

.podium-item.first .podium-avatar img {
    border-color: var(--neon-orange);
    box-shadow: 0 0 30px rgba(255, 107, 0, 0.5);
}

.podium-item.second .podium-avatar img {
    border-color: var(--neon-purple);
}

.podium-item.third .podium-avatar img {
    border-color: var(--neon-green);
}

.podium-crown {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 28px;
}

.podium-rank {
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: var(--gradient-fire);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 700;
    color: white;
    border: 2px solid var(--bg-secondary);
}

.podium-name {
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.podium-score {
    font-size: 14px;
    color: var(--neon-cyan);
    margin-bottom: 16px;
}

.podium-stand {
    width: 140px;
    background: var(--gradient-cyber);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-main);
    font-size: 32px;
    font-weight: 900;
    color: var(--bg-primary);
}

.podium-item.first .podium-stand {
    height: 140px;
    background: linear-gradient(180deg, #ff6b00, #ff00aa);
}

.podium-item.second .podium-stand {
    height: 100px;
    background: linear-gradient(180deg, #bf00ff, #0088ff);
}

.podium-item.third .podium-stand {
    height: 70px;
    background: linear-gradient(180deg, #00ff88, #00f5ff);
}

.ranking-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.ranking-item:hover {
    border-color: var(--neon-cyan);
    background: var(--bg-card-hover);
}

.ranking-position {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 700;
    color: var(--text-secondary);
}

.ranking-item:nth-child(1) .ranking-position,
.ranking-item:nth-child(2) .ranking-position,
.ranking-item:nth-child(3) .ranking-position {
    background: var(--gradient-fire);
    color: white;
}

.ranking-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--neon-cyan);
    overflow: hidden;
}

.ranking-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ranking-info {
    flex: 1;
}

.ranking-name {
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.ranking-title {
    font-size: 13px;
    color: var(--text-muted);
}

.ranking-stats {
    display: flex;
    gap: 32px;
}

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

.ranking-stat-value {
    font-family: var(--font-main);
    font-size: 18px;
    font-weight: 700;
    color: var(--neon-cyan);
}

.ranking-stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.topic-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.topic-item {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.topic-item:hover {
    border-color: var(--neon-purple);
    background: var(--bg-card-hover);
}

.topic-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--neon-purple);
    overflow: hidden;
    flex-shrink: 0;
}

.topic-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.topic-content {
    flex: 1;
}

.topic-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.topic-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.topic-title:hover {
    color: var(--neon-cyan);
}

.topic-tag {
    padding: 3px 10px;
    background: rgba(191, 0, 255, 0.2);
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--neon-purple);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.topic-tag.hot {
    background: rgba(255, 107, 0, 0.2);
    color: var(--neon-orange);
}

.topic-tag.new {
    background: rgba(0, 255, 136, 0.2);
    color: var(--neon-green);
}

.topic-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.topic-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 12px;
    color: var(--text-muted);
}

.topic-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.team-card {
    text-align: center;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.team-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-cyan);
    box-shadow: var(--shadow-neon);
}

.team-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    border: 3px solid var(--neon-cyan);
    padding: 4px;
    background: var(--bg-tertiary);
    position: relative;
}

.team-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.team-name {
    font-family: var(--font-main);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.team-role {
    font-size: 13px;
    color: var(--neon-cyan);
    margin-bottom: 12px;
}

.team-bio {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.stats-section {
    background: var(--bg-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.stat-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-cyber);
}

.stat-number {
    font-family: var(--font-main);
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-text {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-section {
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info h3 {
    font-family: var(--font-main);
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.contact-info p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 245, 255, 0.1);
    border: 1px solid rgba(0, 245, 255, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--neon-cyan);
}

.contact-text {
    font-size: 15px;
    color: var(--text-secondary);
}

.contact-text strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 0 3px rgba(0, 245, 255, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 16px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .search-box {
        display: none;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-value {
        font-size: 32px;
    }
    
    .activity-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .podium-container {
        flex-direction: column;
        align-items: center;
    }
    
    .podium-item {
        order: unset !important;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}