/* СТИЛИ САЙТА - ТОЛЬКО CSS */
:root {
  --bg: #0b1120;
  --card: #151e32;
  --card-hover: #1c2740;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0,0,0,0.4);
  --trans: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
h1,h2,h3,h4 { font-family: 'Manrope', sans-serif; font-weight: 800; line-height: 1.2; }
a { text-decoration: none; color: inherit; transition: var(--trans); }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.btn { display: inline-block; padding: 12px 28px; border-radius: 8px; font-weight: 600; cursor: pointer; border: none; transition: var(--trans); text-align: center; }
.btn-primary { background: var(--gradient); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(59,130,246,0.4); }
.btn-ghost, .btn-outline { background: rgba(255,255,255,0.08); color: #fff; border: 1px solid rgba(255,255,255,0.15); }
.btn-ghost:hover, .btn-outline:hover { background: rgba(255,255,255,0.15); border-color: var(--accent); }

.marquee { background: var(--accent); color: #fff; padding: 10px 0; overflow: hidden; white-space: nowrap; position: relative; z-index: 1001; }
.marquee-content { display: inline-block; animation: marquee 25s linear infinite; font-weight: 600; font-size: 0.9rem; }
@keyframes marquee { 0% { transform: translateX(100%); } 100% { transform: translateX(-100%); } }

.header { position: fixed; top: 40px; left: 0; right: 0; background: rgba(11,17,32,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.08); z-index: 1000; padding: 15px 0; }
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 800; }
.logo-icon { width: 28px; height: 28px; color: var(--accent); }
.nav-list { display: flex; gap: 25px; }
.nav-link:hover { color: var(--accent); }
.header-actions { display: flex; gap: 15px; align-items: center; }
.lang-switch { background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); color: #fff; padding: 6px 12px; border-radius: 20px; cursor: pointer; font-weight: 600; font-size: 0.85rem; }
.lang-active { color: #fff; font-weight: 700; }
.lang-inactive { color: var(--text-muted); }
.burger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.burger span { width: 24px; height: 3px; background: #fff; }

.hero-slider { position: relative; height: 100vh; min-height: 600px; overflow: hidden; margin-top: 80px; }
.slider-container { position: relative; width: 100%; height: 100%; }
.slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-size: cover; background-position: center; display: flex; align-items: center; opacity: 0; transition: opacity 0.8s ease; }
.slide.active { opacity: 1; z-index: 1; }
.slide-content { max-width: 700px; opacity: 0; transform: translateY(20px); transition: all 0.6s ease 0.2s; }
.slide.active .slide-content { opacity: 1; transform: translateY(0); }
.slide-kicker { color: var(--accent); font-weight: 600; margin-bottom: 15px; text-transform: uppercase; letter-spacing: 2px; font-size: 0.9rem; }
.slide h1 { font-size: 3.2rem; margin-bottom: 20px; }
.slide-subtitle { font-size: 1.15rem; color: #cbd5e1; margin-bottom: 30px; }
.slide-actions { display: flex; gap: 15px; flex-wrap: wrap; }
.slider-nav { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); color: #fff; width: 45px; height: 45px; border-radius: 50%; font-size: 1.2rem; cursor: pointer; z-index: 10; }
.slider-nav:hover { background: var(--accent); border-color: var(--accent); }
.slider-prev { left: 20px; } .slider-next { right: 20px; }
.slider-dots { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 10; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.3); border: none; cursor: pointer; }
.dot.active { background: var(--accent); transform: scale(1.3); }

.video-section { padding: 80px 0; background: var(--card); }
.video-wrapper { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; align-items: center; }
.video-placeholder { position: relative; border-radius: var(--radius); overflow: hidden; cursor: pointer; box-shadow: var(--shadow); }
.video-placeholder img { width: 100%; display: block; transition: transform 0.5s; }
.video-placeholder:hover img { transform: scale(1.05); }
.video-play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); display: flex; align-items: center; gap: 12px; background: rgba(0,0,0,0.6); backdrop-filter: blur(5px); padding: 15px 25px; border-radius: 50px; border: 2px solid #fff; color: #fff; font-weight: 700; }
.play-icon { font-size: 1.2rem; }
.video-placeholder:hover .video-play-btn { background: var(--accent); border-color: var(--accent); }
.video-info h2 { font-size: 2.2rem; margin-bottom: 15px; }
.video-features li { margin-bottom: 8px; color: var(--text-muted); }

.section { padding: 80px 0; }
.section-alt { background: var(--card); }
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 { font-size: 2.2rem; margin-bottom: 10px; }

.calculator-wrapper { max-width: 800px; margin: 0 auto; background: var(--bg); padding: 30px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.08); }
.radio-group { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; margin-top: 10px; }
.radio-card input { display: none; }
.radio-content { display: flex; flex-direction: column; align-items: center; padding: 15px; background: rgba(255,255,255,0.05); border: 2px solid transparent; border-radius: 8px; cursor: pointer; }
.radio-card input:checked + .radio-content { border-color: var(--accent); background: rgba(59,130,246,0.1); }
.radio-price { color: var(--accent); font-weight: 700; margin-top: 5px; }
.checkbox-group { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 10px; }
.checkbox-item { display: flex; justify-content: space-between; align-items: center; padding: 12px; background: rgba(255,255,255,0.05); border-radius: 8px; cursor: pointer; }
.checkbox-price { color: var(--text-muted); font-size: 0.85rem; }
.calc-total { margin-top: 25px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); display: flex; justify-content: space-between; align-items: center; font-size: 1.1rem; }
.total-price { font-size: 1.8rem; font-weight: 800; color: var(--accent); }

.grid { display: grid; gap: 25px; }
.advantages-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--card); padding: 25px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.05); transition: var(--trans); }
.card:hover { transform: translateY(-4px); border-color: rgba(59,130,246,0.3); box-shadow: 0 10px 25px rgba(0,0,0,0.3); }
.card-icon { font-size: 2.5rem; margin-bottom: 15px; }
.services-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.service-card { position: relative; }
.service-card.active { border-color: var(--accent); background: var(--card-hover); transform: scale(1.02); }
.service-badge { position: absolute; top: -10px; right: 20px; background: var(--gradient); padding: 4px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; }
.service-card:not(.active) .service-badge { opacity: 0.5; filter: grayscale(1); }
.service-price { font-size: 1.8rem; font-weight: 800; margin: 15px 0; color: var(--accent); }
.service-list li { margin-bottom: 6px; color: var(--text-muted); font-size: 0.95rem; }

.portfolio-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.portfolio-item { background: var(--card); border-radius: var(--radius); overflow: hidden; transition: var(--trans); display: block; }
.portfolio-item:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0,0,0,0.4); }
.portfolio-image img { width: 100%; height: 200px; object-fit: cover; display: block; }
.portfolio-info { padding: 20px; }

.process-list { max-width: 700px; margin: 0 auto; }
.process-step { display: flex; gap: 20px; margin-bottom: 25px; padding: 20px; background: var(--bg); border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.05); }
.step-number { font-size: 1.8rem; font-weight: 800; color: var(--accent); opacity: 0.6; min-width: 50px; }

.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-list li { margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.messengers { margin-top: 30px; }
.msg-links { display: flex; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.msg-btn { padding: 8px 16px; border-radius: 8px; font-weight: 600; font-size: 0.9rem; }
.msg-btn.wa { background: #25D366; color: #fff; }
.msg-btn.tg { background: #0088cc; color: #fff; }
.msg-btn.vk { background: #4C75A3; color: #fff; }
.msg-btn.max { background: #FF5722; color: #fff; }

.contact-form-wrapper { background: var(--card); padding: 30px; border-radius: var(--radius); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.form-field { margin-bottom: 15px; }
.form-field label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 0.9rem; }
.form-field input, .form-field textarea { width: 100%; padding: 10px; background: var(--bg); border: 1px solid rgba(255,255,255,0.1); color: #fff; border-radius: 6px; font-size: 1rem; }
.form-field input:focus, .form-field textarea:focus { border-color: var(--accent); outline: none; }

.footer { background: #070b14; padding: 60px 0 30px; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.5fr; gap: 30px; margin-bottom: 30px; }
.footer-col h4 { margin-bottom: 15px; font-size: 1.1rem; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: var(--text-muted); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { text-align: center; color: var(--text-muted); padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.05); }

.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.85); z-index: 2000; justify-content: center; align-items: center; backdrop-filter: blur(5px); }
.modal.active { display: flex; }
.modal-content { background: var(--card); padding: 30px; border-radius: var(--radius); width: 90%; max-width: 450px; position: relative; border: 1px solid rgba(255,255,255,0.1); }
.modal-close { position: absolute; top: 10px; right: 15px; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }
.modal-form input { width: 100%; padding: 12px; margin-bottom: 15px; background: var(--bg); border: 1px solid rgba(255,255,255,0.1); color: #fff; border-radius: 6px; }
.video-content { max-width: 800px; background: #000; }
.video-container { position: relative; padding-bottom: 56.25%; height: 0; }
.video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

.ai-chat { position: fixed; bottom: 20px; right: 20px; z-index: 1500; }
.chat-toggle { width: 55px; height: 55px; border-radius: 50%; background: var(--gradient); border: none; font-size: 1.5rem; cursor: pointer; box-shadow: 0 5px 15px rgba(59,130,246,0.4); }
.chat-toggle:hover { transform: scale(1.1); }
.chat-window { display: none; position: absolute; bottom: 70px; right: 0; width: 320px; height: 450px; background: var(--card); border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.1); flex-direction: column; overflow: hidden; box-shadow: var(--shadow); }
.chat-window.open { display: flex; }
.chat-header { background: var(--accent); padding: 12px 15px; display: flex; justify-content: space-between; align-items: center; font-weight: 700; }
.chat-header button { background: none; border: none; color: #fff; font-size: 1.2rem; cursor: pointer; }
.chat-messages { flex: 1; padding: 15px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; }
.msg { padding: 10px 14px; border-radius: 12px; font-size: 0.9rem; max-width: 85%; }
.msg.bot { background: rgba(255,255,255,0.1); align-self: flex-start; }
.msg.user { background: var(--accent); color: #fff; align-self: flex-end; }
.chat-input { display: flex; border-top: 1px solid rgba(255,255,255,0.1); }
.chat-input input { flex: 1; padding: 12px; background: transparent; border: none; color: #fff; outline: none; }
.chat-input button { background: var(--accent); border: none; color: #fff; padding: 0 15px; cursor: pointer; font-size: 1.1rem; }

.back-to-top { position: fixed; bottom: 20px; left: 20px; width: 55px; height: 55px; background: var(--gradient); color: #fff; border: none; border-radius: 50%; font-size: 1.3rem; cursor: pointer; opacity: 0; pointer-events: none; transition: var(--trans); z-index: 999; display: flex; align-items: center; justify-content: center; box-shadow: 0 5px 15px rgba(59,130,246,0.4); }
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-3px); }

.cookie-banner { position: fixed; bottom: 0; left: 0; right: 0; background: var(--card); padding: 18px 110px 18px 30px; display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--accent); z-index: 1001; transform: translateY(100%); transition: transform 0.3s; gap: 20px; }
.cookie-banner p { margin: 0; line-height: 1.5; font-size: 0.95rem; color: var(--text-muted); }
.cookie-banner a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.cookie-banner.visible { transform: translateY(0); }

[data-animate] { opacity: 0; transform: translateY(20px); transition: all 0.6s ease; }
[data-animate].visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1024px) {
  .video-wrapper, .contact-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav { position: fixed; top: 130px; left: 0; right: 0; background: var(--bg); padding: 20px; transform: translateY(-150%); transition: transform 0.3s; z-index: 999; }
  .nav.active { transform: translateY(0); }
  .nav-list { flex-direction: column; }
  .burger { display: flex; }
  .header-actions { display: none; }
  .slide h1 { font-size: 2rem; }
  .radio-group, .checkbox-group { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cookie-banner { flex-direction: column; text-align: center; padding: 20px; gap: 15px; }
  .cookie-banner p { font-size: 0.9rem; }
}