:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --bg-card-hover: #222222;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --text-muted: #555555;
    --accent-primary: #c8ff00;
    --accent-secondary: #00ff88;
    --accent-purple: #8b5cf6;
    --accent-blue: #3b82f6;
    --accent-pink: #ec4899;
    --border-color: #333333;
    --gradient-1: linear-gradient(135deg, #c8ff00 0%, #00ff88 100%);
    --gradient-2: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --gradient-3: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-lg: 24px;
}

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

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

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

a { text-decoration: none; color: inherit; transition: var(--transition-fast); }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
img { max-width: 100%; height: auto; }

.container { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform var(--transition-medium), background var(--transition-medium);
}

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

.logo { display: flex; align-items: center; gap: 8px; font-size: 1.5rem; font-weight: 700; }
.logo-text { color: var(--text-primary); }
.logo-accent { color: var(--accent-primary); }

.nav { display: flex; gap: 40px; }

.nav-link { font-size: 0.95rem; font-weight: 500; color: var(--text-secondary); position: relative; }
.nav-link:hover { color: var(--text-primary); }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: var(--transition-medium);
}
.nav-link:hover::after { width: 100%; }

.lang-switch { display: flex; align-items: center; gap: 8px; }
.lang-btn { font-size: 0.9rem; color: var(--text-secondary); transition: var(--transition-fast); }
.lang-btn:hover, .lang-btn.active { color: var(--text-primary); }
.lang-divider { color: var(--text-muted); }

.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; padding: 5px; }
.mobile-menu-btn span { display: block; width: 25px; height: 2px; background: var(--text-primary); transition: var(--transition-fast); }

.hero { min-height: 100vh; padding: 150px 0 100px; position: relative; overflow: hidden; }
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-content { position: relative; z-index: 2; }

.hero-title { font-size: clamp(3rem, 8vw, 6rem); font-weight: 900; line-height: 1; letter-spacing: -0.03em; margin-bottom: 30px; }
.hero-title-line { display: block; opacity: 0; transform: translateY(30px); animation: fadeInUp 0.8s ease forwards; }
.hero-title-line:nth-child(1) { animation-delay: 0.2s; }
.hero-title-line:nth-child(2) { animation-delay: 0.4s; }
.hero-title-line:nth-child(3) { animation-delay: 0.6s; }
.hero-title-line.accent { background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.hero-description { font-size: 1.1rem; color: var(--text-secondary); max-width: 600px; margin-bottom: 20px; opacity: 0; animation: fadeIn 0.8s ease 0.8s forwards; }
.hero-tagline { font-size: 1rem; color: var(--accent-primary); font-weight: 500; margin-bottom: 30px; opacity: 0; animation: fadeIn 0.8s ease 1s forwards; }
.hero-since { display: inline-block; padding: 8px 20px; border: 1px solid var(--border-color); border-radius: 50px; font-size: 0.9rem; color: var(--text-secondary); opacity: 0; animation: fadeIn 0.8s ease 1.2s forwards; }

.hero-cards { display: flex; flex-direction: column; gap: 20px; opacity: 0; animation: fadeInRight 0.8s ease 1s forwards; }

.card { display: flex; align-items: center; gap: 20px; padding: 30px; background: var(--bg-card); border-radius: var(--border-radius); border: 1px solid var(--border-color); transition: var(--transition-medium); }
.card:hover { background: var(--bg-card-hover); border-color: var(--accent-primary); transform: translateX(10px); }
.card-icon { width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; background: var(--gradient-1); border-radius: var(--border-radius-sm); }
.card-icon svg { width: 30px; height: 30px; color: var(--bg-primary); }
.card-title { flex: 1; font-size: 1.3rem; font-weight: 600; }

.hero-bg-text { position: absolute; bottom: -10%; right: -5%; font-size: clamp(8rem, 20vw, 20rem); font-weight: 900; color: rgba(255, 255, 255, 0.02); pointer-events: none; z-index: 1; }

.sources { padding: 80px 0; background: var(--bg-secondary); }
.section-title { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; margin-bottom: 50px; text-align: center; }
.sources-grid { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.source-item { display: flex; flex-direction: column; align-items: center; gap: 15px; padding: 30px; background: var(--bg-card); border-radius: var(--border-radius); border: 1px solid var(--border-color); transition: var(--transition-medium); min-width: 140px; }
.source-item:hover { transform: translateY(-5px); border-color: var(--accent-primary); }
.source-icon { width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; border-radius: var(--border-radius-sm); font-size: 1.5rem; font-weight: 700; }
.source-icon.facebook { background: #1877f2; color: white; }
.source-icon.google { background: linear-gradient(135deg, #4285f4, #ea4335, #fbbc05, #34a853); color: white; }
.source-icon.tiktok { background: linear-gradient(135deg, #000000, #ff0050, #00f2ea); color: white; }
.source-icon.native { background: var(--gradient-2); color: white; }
.source-icon.seo { background: var(--gradient-1); color: var(--bg-primary); }
.source-item span { font-size: 0.95rem; color: var(--text-secondary); }

.marquee-section { padding: 30px 0; background: var(--accent-primary); overflow: hidden; }
.marquee { display: flex; overflow: hidden; }
.marquee-content { display: flex; gap: 30px; animation: marquee 20s linear infinite; white-space: nowrap; }
.marquee-content span { font-size: 1.5rem; font-weight: 800; color: var(--bg-primary); text-transform: uppercase; }
.marquee-star { color: var(--bg-primary); }
.marquee-reverse .marquee-content { animation-direction: reverse; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

.about { padding: 120px 0; }
.about .container { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; }
.about-header .section-title { margin-bottom: 0; text-align: left; }
.about-text { font-size: 1.15rem; line-height: 1.8; color: var(--text-secondary); }
.about-visual { display: flex; justify-content: center; align-items: center; position: relative; }
.floating-card { padding: 40px; background: var(--gradient-2); border-radius: var(--border-radius-lg); transform: rotate(-5deg); animation: float 6s ease-in-out infinite; }
.floating-card-content { font-size: 1.2rem; font-weight: 600; color: white; }
@keyframes float { 0%, 100% { transform: rotate(-5deg) translateY(0); } 50% { transform: rotate(-5deg) translateY(-20px); } }

.ad-marquee { padding: 20px 0; background: var(--bg-card); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.ad-marquee .marquee-content .ad-text { font-size: 1rem; color: var(--accent-primary); padding: 0 30px; font-weight: 500; }

.advantages { padding: 120px 0; background: var(--bg-secondary); }
.advantages .section-title { margin-bottom: 60px; }
.advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.advantage-card { padding: 40px; background: var(--bg-card); border-radius: var(--border-radius); border: 1px solid var(--border-color); transition: var(--transition-medium); }
.advantage-card:hover { border-color: var(--accent-primary); transform: translateY(-5px); }
.advantage-card.main { background: var(--gradient-3); }
.advantage-card.main h3 { color: white; }
.advantage-icon { font-size: 3rem; font-weight: 900; color: white; margin-bottom: 20px; }
.advantage-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 15px; }
.advantage-card p { color: var(--text-secondary); line-height: 1.7; }
.advantage-card.highlight { background: linear-gradient(135deg, var(--bg-card) 0%, #2a1f3d 100%); border-color: var(--accent-purple); }
.quote-mark { font-size: 4rem; color: var(--accent-purple); line-height: 1; margin-bottom: 10px; display: block; }
.offer-preview { margin-top: 20px; padding: 20px; background: var(--bg-secondary); border-radius: var(--border-radius-sm); }
.offer-badge { display: inline-block; padding: 4px 12px; background: var(--accent-primary); color: var(--bg-primary); border-radius: 50px; font-size: 0.8rem; font-weight: 600; margin-bottom: 10px; }
.offer-amount { font-size: 2rem; font-weight: 800; color: var(--accent-primary); }
.offer-cr { color: var(--text-secondary); font-size: 0.9rem; }

.reviews { padding: 120px 0; }
.reviews .section-title { margin-bottom: 60px; }
.reviews-track { overflow: hidden; position: relative; }
.reviews-slider { display: flex; gap: 30px; animation: reviews-scroll 40s linear infinite; width: max-content; }
.reviews-slider:hover { animation-play-state: paused; }
.review-card { padding: 40px; background: var(--bg-card); border-radius: var(--border-radius); border: 1px solid var(--border-color); transition: var(--transition-medium); min-width: 420px; max-width: 420px; flex-shrink: 0; }
.review-card:hover { border-color: var(--accent-primary); }
.review-header { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; }
.review-logo { width: 50px; height: 50px; display: flex; align-items: center; justify-content: center; background: var(--gradient-1); border-radius: var(--border-radius-sm); font-weight: 700; color: var(--bg-primary); flex-shrink: 0; }
.review-company { font-size: 1.1rem; font-weight: 600; }
.review-text { color: var(--text-secondary); line-height: 1.8; }
@keyframes reviews-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

.events { padding: 120px 0; background: var(--bg-secondary); }
.events .section-title { margin-bottom: 60px; }
.events-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.event-card { position: relative; border-radius: var(--border-radius); overflow: hidden; transition: var(--transition-medium); border: 1px solid var(--border-color); }
.event-card:hover { transform: translateY(-10px); border-color: var(--accent-primary); }
.event-image { height: 200px; background-size: cover; background-position: center; background-color: var(--bg-card); position: relative; }
.event-overlay { position: absolute; inset: 0; background: rgba(0, 0, 0, 0.3); }
.event-content { padding: 25px; background: var(--bg-card); }
.event-title { font-size: 1rem; font-weight: 600; margin-bottom: 15px; line-height: 1.5; }
.event-info { display: flex; flex-direction: column; gap: 5px; }
.event-location { font-size: 0.85rem; color: var(--accent-primary); font-weight: 500; }
.event-date { font-size: 0.85rem; color: var(--text-secondary); }
.event-card.featured { grid-column: span 1; }
.event-card.featured .event-image { height: 250px; }

.contacts { padding: 120px 0; background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%); }
.contacts-content { text-align: center; max-width: 600px; margin: 0 auto; }
.contacts-title { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; margin-bottom: 20px; background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.contacts-text { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 40px; }
.contacts-buttons { display: flex; gap: 20px; justify-content: center; }
.contact-btn { display: flex; align-items: center; gap: 10px; padding: 16px 32px; border-radius: 50px; font-size: 1rem; font-weight: 600; transition: var(--transition-medium); position: relative; overflow: hidden; }
.contact-btn.primary { background: var(--accent-primary); color: var(--bg-primary); }
.contact-btn.primary:hover { background: #d4ff33; transform: translateY(-3px); }
.btn-arrow { transition: var(--transition-fast); }
.contact-btn:hover .btn-arrow { transform: translateX(5px); }

.footer { padding: 40px 0; background: var(--bg-secondary); border-top: 1px solid var(--border-color); }
.footer-content { display: flex; justify-content: space-between; align-items: center; }
.footer-logo .logo-text { font-size: 1.5rem; font-weight: 700; }
.footer-copyright { color: var(--text-muted); font-size: 0.9rem; }
.footer-legal { text-align: center; margin-top: 20px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.05); }
.footer-legal p { color: var(--text-muted); font-size: 0.75rem; line-height: 1.8; }

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

.ripple { position: absolute; border-radius: 50%; background: rgba(255, 255, 255, 0.3); transform: scale(0); animation: ripple-effect 0.6s linear; pointer-events: none; }
@keyframes ripple-effect { to { transform: scale(4); opacity: 0; } }

.header.scrolled { background: rgba(10, 10, 10, 0.95); padding: 15px 0; }
::selection { background: var(--accent-primary); color: var(--bg-primary); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

.scroll-animate { opacity: 0; transform: translateY(30px); transition: all 0.8s ease; }
.scroll-animate.visible { opacity: 1; transform: translateY(0); }

.nav.active { display: flex; position: fixed; top: 80px; left: 0; right: 0; flex-direction: column; background: var(--bg-primary); padding: 30px; gap: 20px; border-bottom: 1px solid var(--border-color); }
.mobile-menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
body.menu-open { overflow: hidden; }

@media (max-width: 1200px) {
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid .advantage-card.highlight { grid-column: span 2; }
}

@media (max-width: 992px) {
    .hero .container { grid-template-columns: 1fr; text-align: center; }
    .hero-cards { flex-direction: row; justify-content: center; }
    .hero-description { margin-left: auto; margin-right: auto; }
    .about .container { grid-template-columns: 1fr; }
    .about-header { flex-direction: column; gap: 20px; }
    .about-header .section-title { text-align: center; }
    .events-grid { grid-template-columns: repeat(2, 1fr); }
    .review-card { min-width: 340px; max-width: 340px; }
}

@media (max-width: 768px) {
    .nav { display: none; }
    .lang-switch { display: none; }
    .mobile-menu-btn { display: flex; }
    .hero-title { font-size: 2.5rem; }
    .hero-cards { flex-direction: column; }
    .advantages-grid { grid-template-columns: 1fr; }
    .advantages-grid .advantage-card.highlight { grid-column: span 1; }
    .events-grid { grid-template-columns: 1fr; }
    .contacts-buttons { flex-direction: column; align-items: center; }
    .footer-content { flex-direction: column; gap: 20px; text-align: center; }
    .sources-grid { gap: 20px; }
    .source-item { min-width: 100px; padding: 20px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero { padding: 120px 0 60px; }
    .card { padding: 20px; }
    .advantage-card { padding: 25px; }
    .event-content { padding: 20px; }
}