/* /css/index.css */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg-1: #050a14; 
  --bg-2: #030712; 
  --accent: #00d2ff;
  --accent-hover: #33e0ff;
  --text: #ffffff; 
  --text-dim: #94a3b8;
  --card: rgba(255,255,255,0.02);
  --border: rgba(0, 210, 255, 0.15); 
  --glow: 0 0 30px rgba(0, 210, 255, 0.3);
  --vk-color: #0077FF;
}
html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-2); 
  color: var(--text); 
  line-height: 1.6; 
  overflow-x: hidden;
}

/* Клетчатый фон */
body::before {
  content: ''; position: fixed; inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px; background-position: center top;
  z-index: -2; pointer-events: none;
}
body::after {
  content: ''; position: fixed; inset: 0;
  background: radial-gradient(circle at 15% 20%, rgba(0, 102, 204, 0.15) 0%, transparent 40%),
              radial-gradient(circle at 85% 80%, rgba(0, 210, 255, 0.1) 0%, transparent 40%);
  z-index: -1; pointer-events: none;
}

.container { max-width: 1320px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4 { font-family: 'Manrope', 'Inter', sans-serif; }

.skip-link { position: absolute; top: -40px; left: 8px; background: var(--accent); color: #000; padding: 8px 14px; border-radius: 6px; text-decoration: none; z-index: 9999; font-weight: 700; }
.skip-link:focus { top: 8px; }

/* HEADER */
header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(5,10,20,0.7); backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,0.05); transition: all 0.3s; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; max-width: 1320px; margin: 0 auto; gap: 20px; }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 22px; text-decoration: none; color: var(--text); flex-shrink: 0; }
.logo-img { width: 40px; height: 40px; border-radius: 12px; object-fit: cover; background: rgba(0, 210, 255, 0.1); border: 1px solid var(--border); box-shadow: var(--glow); }
.logo-text span { background: linear-gradient(90deg, #fff, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
nav ul { display: flex; gap: 40px; list-style: none; }
nav a { color: var(--text-dim); text-decoration: none; font-size: 15px; font-weight: 500; transition: all 0.3s; position: relative; }
nav a:hover { color: var(--accent); }
nav a::after { content: ''; position: absolute; bottom: -6px; left: 0; width: 0; height: 2px; background: var(--accent); transition: width 0.3s; border-radius: 2px; }
nav a:hover::after { width: 100%; }
.header-right { display: flex; align-items: center; gap: 20px; }
.header-phone { color: var(--text); text-decoration: none; font-weight: 600; font-size: 15px; transition: color 0.3s; }
.header-phone:hover { color: var(--accent); }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 16px 32px; border-radius: 12px; font-weight: 600; font-size: 16px; cursor: pointer; text-decoration: none; border: none; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); font-family: inherit; white-space: nowrap; }
.btn-sm { padding: 12px 24px; font-size: 14px; border-radius: 10px; }
.btn-primary { background: var(--accent); color: #000; box-shadow: 0 4px 20px rgba(0, 210, 255, 0.3); }
.btn-primary:hover { transform: translateY(-2px); background: var(--accent-hover); box-shadow: 0 8px 30px rgba(0, 210, 255, 0.5); }
.btn-outline { background: rgba(255,255,255,0.03); color: var(--text); border: 1px solid rgba(255,255,255,0.1); backdrop-filter: blur(10px); }
.btn-outline:hover { border-color: var(--accent); background: rgba(0, 210, 255, 0.05); transform: translateY(-2px); }

.burger { display: none; flex-direction: column; gap: 6px; cursor: pointer; background: none; border: none; padding: 8px; }
.burger span { width: 26px; height: 2px; background: var(--text); transition: all 0.3s; border-radius: 2px; }
.burger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* MOBILE MENU */
.mobile-menu { position: fixed; top: 0; right: -100%; width: 85%; max-width: 340px; height: 100vh; background: rgba(5,10,20,0.98); backdrop-filter: blur(20px); border-left: 1px solid var(--border); padding: 100px 30px 30px; transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1); z-index: 99; }
.mobile-menu.open { right: 0; }
.mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.mobile-menu a { display: block; color: var(--text); text-decoration: none; font-size: 18px; font-weight: 600; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.05); transition: color .3s; }
.mobile-menu a:hover { color: var(--accent); }
.mobile-menu .menu-phone { display: block; margin-top: 30px; font-size: 20px; color: var(--accent); border: none; }
.mobile-menu .btn { margin-top: 20px; width: 100%; }

/* HERO */
.hero { position: relative; padding: 200px 0 120px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 10px; padding: 10px 20px; background: rgba(0, 210, 255, 0.05); border: 1px solid rgba(0, 210, 255, 0.2); border-radius: 100px; font-size: 13px; font-weight: 600; color: var(--accent); margin-bottom: 30px; text-transform: uppercase; letter-spacing: 1.5px; backdrop-filter: blur(10px); }
.hero-badge::before { content: ''; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 12px var(--accent); }
.hero h1 { font-size: clamp(40px, 5vw, 72px); font-weight: 800; line-height: 1.05; margin-bottom: 28px; letter-spacing: -1.5px; }
.hero h1 .accent { color: var(--accent); }
.hero p { font-size: 18px; color: var(--text-dim); margin-bottom: 40px; max-width: 520px; line-height: 1.7; font-weight: 400; }
.hero-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 24px; margin-bottom: 48px; }
.hero-feature { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text); font-weight: 500; }
.hero-feature-icon { width: 36px; height: 36px; border-radius: 10px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 16px; flex-shrink: 0; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { position: relative; width: 100%; aspect-ratio: 1.1/1; display: flex; align-items: center; justify-content: center; }
.visual-container { position: relative; width: 100%; max-width: 580px; perspective: 1200px; }
.visual-glow { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 120%; height: 120%; background: radial-gradient(circle, rgba(0,210,255,0.15) 0%, transparent 60%); filter: blur(40px); z-index: 0; }
.arch-house { position: relative; width: 100%; height: 100%; aspect-ratio: 16/11; z-index: 1; filter: drop-shadow(0 30px 60px rgba(0,0,0,0.8)); }
.arch-base { position: absolute; bottom: 0; left: 5%; right: 5%; height: 75%; background: #0a0f1a; border-radius: 4px; border: 1px solid rgba(255,255,255,0.05); overflow: hidden; display: flex; gap: 2px; padding: 2px; z-index: 2; }
.arch-roof { position: absolute; top: -18%; left: 0; right: 0; height: 40%; background: linear-gradient(135deg, #1e293b, #0f172a); clip-path: polygon(50% 0%, 100% 100%, 0% 100%); z-index: 3; border-bottom: 2px solid rgba(0,210,255,0.2); box-shadow: inset 0 0 20px rgba(0,0,0,0.8); }
.arch-panel { flex: 1; background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%); border-radius: 2px; border: 1px solid rgba(255,255,255,0.03); position: relative; overflow: hidden; }
.arch-panel::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, transparent, transparent 19px, rgba(255,255,255,0.03) 19px, rgba(255,255,255,0.03) 20px); }
.arch-window { position: absolute; background: linear-gradient(180deg, #ffedd5, #fde047); border: 3px solid #0f172a; border-radius: 4px; box-shadow: 0 0 20px rgba(253, 224, 71, 0.4), inset 0 0 10px rgba(0,0,0,0.5); z-index: 4; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 2px; padding: 2px; }
.arch-window::before, .arch-window::after { content: ''; background: rgba(15, 23, 42, 0.8); }
.arch-window::before { grid-column: 1 / -1; height: 2px; align-self: center; }
.arch-window::after { grid-row: 1 / -1; width: 2px; justify-self: center; }
.aw-1 { top: 20%; left: 15%; width: 22%; height: 25%; }
.aw-2 { top: 20%; right: 15%; width: 22%; height: 25%; }
.aw-3 { bottom: 20%; left: 50%; transform: translateX(-50%); width: 18%; height: 30%; }
.arch-door { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 15%; height: 22%; background: linear-gradient(90deg, #111827, #1f2937); border: 2px solid #0f172a; border-bottom: none; border-radius: 4px 4px 0 0; z-index: 5; box-shadow: inset 0 0 10px rgba(0,0,0,0.8); }
.glass-stat { position: absolute; background: rgba(10, 15, 25, 0.6); backdrop-filter: blur(16px); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; padding: 16px 24px; z-index: 10; box-shadow: 0 20px 40px rgba(0,0,0,0.6); display: flex; flex-direction: column; gap: 4px; animation: float 6s ease-in-out infinite; }
.glass-stat.top { top: 5%; right: -5%; }
.glass-stat.bottom { bottom: 10%; left: -5%; animation-delay: 2s; }
.stat-value { font-size: 28px; font-weight: 800; color: var(--accent); line-height: 1; letter-spacing: -1px; }
.stat-label { font-size: 13px; color: var(--text-dim); font-weight: 500; text-transform: uppercase; letter-spacing: 1px; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-15px); } }

/* SECTIONS */
section { padding: 120px 0; position: relative; }
.section-head { text-align: center; margin-bottom: 64px; }
.section-tag { display: inline-block; padding: 8px 16px; background: rgba(0,210,255,0.05); border: 1px solid rgba(0,210,255,0.2); border-radius: 100px; color: var(--accent); font-size: 12px; font-weight: 700; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 2px; }
.section-title { font-size: clamp(32px, 4vw, 48px); font-weight: 800; margin-bottom: 16px; letter-spacing: -1px; }
.section-title .accent { color: var(--accent); }
.section-subtitle { color: var(--text-dim); font-size: 18px; max-width: 640px; margin: 0 auto; }

/* ADVANTAGES */
.adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.adv-card { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 20px; padding: 32px; transition: all 0.4s; position: relative; overflow: hidden; backdrop-filter: blur(10px); }
.adv-card:hover { transform: translateY(-8px); border-color: rgba(0,210,255,0.3); background: rgba(0,210,255,0.03); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
.adv-icon { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, rgba(0,210,255,0.1), rgba(0,102,204,0.05)); border: 1px solid rgba(0,210,255,0.2); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 24px; color: var(--accent); }
.adv-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.adv-card p { color: var(--text-dim); font-size: 15px; line-height: 1.6; }

/* CATALOG */
.catalog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 32px; }
.product-card { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 24px; overflow: hidden; transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); display: flex; flex-direction: column; position: relative; backdrop-filter: blur(10px); }
.product-card:hover { transform: translateY(-8px); border-color: rgba(0,210,255,0.3); box-shadow: 0 30px 60px rgba(0,0,0,0.6); }
.product-card.featured { border-color: rgba(0,210,255,0.4); background: linear-gradient(180deg, rgba(0,210,255,0.05) 0%, rgba(255,255,255,0.02) 100%); }
.product-image { aspect-ratio: 16/9; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; background: #050a14; }
.product-image img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1; transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1); }
.product-card:hover .product-image img { transform: scale(1.05); }
.product-image::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(5,10,20,0.9)); z-index: 2; }
.product-tag { position: absolute; top: 20px; left: 20px; padding: 8px 16px; background: var(--accent); color: #000; border-radius: 100px; font-size: 12px; font-weight: 800; z-index: 3; text-transform: uppercase; letter-spacing: 1px; }
.product-body { padding: 32px; display: flex; flex-direction: column; flex: 1; }
.product-body h3 { font-size: 24px; font-weight: 800; margin-bottom: 12px; }
.product-body > p { color: var(--text-dim); font-size: 15px; margin-bottom: 24px; }
.product-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 32px; list-style: none; }
.spec { padding: 16px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.05); border-radius: 12px; }
.spec-label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.spec-value { font-size: 16px; font-weight: 700; color: var(--text); margin-top: 6px; display: block; }
.product-price { display: flex; align-items: baseline; gap: 8px; margin-bottom: 24px; margin-top: auto; }
.price-value { font-size: 32px; font-weight: 800; color: var(--accent); letter-spacing: -1px; }
.price-unit { color: var(--text-dim); font-size: 15px; }

.catalog-intro { max-width: 860px; margin: 0 auto 48px; text-align: center; color: var(--text-dim); font-size: 16px; line-height: 1.8; }
.catalog-intro strong { color: var(--text); }

.compare-wrap { margin-top: 64px; overflow-x: auto; border-radius: 16px; border: 1px solid var(--border); background: rgba(255,255,255,0.02); backdrop-filter: blur(10px); }
.compare-table { width: 100%; border-collapse: collapse; min-width: 520px; }
.compare-table caption { padding: 24px; text-align: left; font-weight: 800; font-size: 18px; color: var(--text); border-bottom: 1px solid var(--border); }
.compare-table th, .compare-table td { padding: 20px 24px; text-align: left; border-bottom: 1px solid var(--border); font-size: 15px; }
.compare-table th { background: rgba(0,210,255,0.05); color: var(--accent); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: 1px; }
.compare-table td:first-child { color: var(--text-dim); font-weight: 500; width: 40%; }
.compare-table tbody tr:last-child td { border-bottom: none; }

/* КАЛЬКУЛЯТОР */
.calc-wrap { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 32px; padding: 40px; backdrop-filter: blur(10px); }
.calc-layout { display: grid; grid-template-columns: 1fr 440px; gap: 48px; align-items: start; }
.calc-form-column { padding: 0; }
.calc-results-column { position: sticky; top: 100px; }

.calc-block { margin-bottom: 40px; }
.calc-block:last-child { margin-bottom: 0; }
.calc-block-title { display: flex; align-items: center; gap: 14px; font-size: 18px; font-weight: 700; margin-bottom: 24px; color: var(--text); }
.step-num { width: 32px; height: 32px; border-radius: 50%; background: rgba(0,210,255,0.1); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 800; border: 1px solid rgba(0,210,255,0.3); }

.mode-switch { display: flex; gap: 8px; background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.05); padding: 6px; border-radius: 14px; margin-bottom: 20px; }
.mode-btn { flex: 1; padding: 12px; background: transparent; border: none; border-radius: 10px; color: var(--text-dim); font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer; transition: all .3s; }
.mode-btn.active { background: rgba(0,210,255,0.1); color: var(--accent); }
.mode-panel { display: none; } .mode-panel.active { display: block; }

.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.form-group input, .form-group select { padding: 16px; background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; color: var(--text); font-size: 16px; font-family: inherit; transition: all 0.3s; width: 100%; font-weight: 600; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px rgba(0,210,255,0.1); }
.form-group input::placeholder { color: #64748b; }

.openings-block { background: rgba(0,0,0,0.2); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; padding: 20px; margin-bottom: 16px; display: flex; flex-direction: column; gap: 12px; }
.openings-block:empty { display: none; }
.opening-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr 44px; gap: 12px; align-items: center; }
.opening-row select, .opening-row input { padding: 14px; background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; color: var(--text); font-size: 15px; font-family: inherit; width: 100%; }
.btn-remove-opening { width: 44px; height: 44px; border-radius: 10px; background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.3); color: #ef4444; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all .2s; font-size: 18px; }
.btn-remove-opening:hover { background: rgba(239, 68, 68, 0.2); }
.btn-add-opening { width: 100%; padding: 16px; background: rgba(255,255,255,0.02); border: 2px dashed rgba(255,255,255,0.1); border-radius: 12px; color: var(--text-dim); font-family: inherit; font-size: 15px; font-weight: 600; cursor: pointer; transition: all .3s; }
.btn-add-opening:hover { background: rgba(0,210,255,0.05); border-color: var(--accent); color: var(--accent); }

.material-cards { display: grid; grid-template-columns: 1fr; gap: 12px; }
.material-card { display: flex; align-items: center; gap: 16px; padding: 20px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; cursor: pointer; transition: all .3s; position: relative; }
.material-card:hover { border-color: rgba(255,255,255,0.2); }
.material-card.active { border-color: var(--accent); background: rgba(0,210,255,0.05); }
.material-card input { position: absolute; opacity: 0; pointer-events: none; }
.mc-radio { width: 22px; height: 22px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.2); flex-shrink: 0; position: relative; transition: all .3s; }
.material-card.active .mc-radio { border-color: var(--accent); }
.material-card.active .mc-radio::after { content: ''; position: absolute; inset: 5px; border-radius: 50%; background: var(--accent); }
.mc-info { flex: 1; display: flex; flex-direction: column; }
.mc-title { font-weight: 700; font-size: 16px; }
.mc-desc { font-size: 13px; color: var(--text-dim); }
.mc-price { font-weight: 800; color: var(--accent); font-size: 16px; white-space: nowrap; }

.waste-options { display: flex; flex-wrap: wrap; gap: 10px; }
.waste-btn { padding: 12px 20px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; color: var(--text-dim); font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer; transition: all .3s; }
.waste-btn:hover { border-color: rgba(255,255,255,0.2); color: var(--text); }
.waste-btn.active { background: var(--accent); border-color: var(--accent); color: #000; }

.ral-palette { display: grid; grid-template-columns: repeat(auto-fill, minmax(36px, 1fr)); gap: 8px; max-height: 200px; overflow-y: auto; padding: 12px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; margin-bottom: 16px; }
.ral-palette::-webkit-scrollbar { width: 6px; }
.ral-palette::-webkit-scrollbar-track { background: transparent; }
.ral-palette::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 3px; }
.ral-color { aspect-ratio: 1; border-radius: 6px; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; border: 2px solid transparent; padding: 0; -webkit-appearance: none; appearance: none; }
.ral-color:hover { transform: scale(1.15); z-index: 2; }
.ral-color.selected { border-color: #fff; box-shadow: 0 0 0 2px var(--accent); transform: scale(1.1); }
.selected-color { padding: 16px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.05); border-radius: 12px; display: flex; align-items: center; gap: 16px; }
.selected-swatch { width: 36px; height: 36px; border-radius: 8px; border: 2px solid rgba(255,255,255,0.2); flex-shrink: 0; transition: background 0.3s; }
.selected-info { flex: 1; font-size: 14px; }
.selected-info strong { display: block; margin-bottom: 2px; }
.selected-info span { color: var(--text-dim); font-size: 12px; }

/* Мини-дом в смете */
.preview-house-wrap { margin: 20px 0 24px; background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; align-items: center; }
.preview-house-scene { position: relative; width: 100%; max-width: 240px; aspect-ratio: 1.5/1; background: linear-gradient(180deg, #0f172a 0%, #050a14 100%); border-radius: 8px; overflow: hidden; box-shadow: inset 0 0 20px rgba(0,0,0,0.8); --panel-color: #a5a8a6; }
.preview-house-roof { position: absolute; top: 15px; left: 15px; right: 15px; height: 45px; background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%); clip-path: polygon(15% 0%, 85% 0%, 100% 100%, 0% 100%); z-index: 3; box-shadow: 0 8px 15px rgba(0,0,0,0.6); }
.preview-roof-shadow { position: absolute; top: 60px; left: 15px; right: 15px; height: 20px; background: linear-gradient(180deg, rgba(0,0,0,0.8) 0%, transparent 100%); z-index: 2; pointer-events: none; }
.preview-house-facade { position: absolute; top: 55px; left: 20px; right: 20px; bottom: 20px; display: flex; background: #000; border-left: 2px solid #1e293b; border-right: 2px solid #1e293b; z-index: 1; }
.preview-panel { flex: 1; background-color: var(--panel-color); background-image: linear-gradient(180deg, rgba(255,255,255,0.15) 0%, transparent 30%, rgba(0,0,0,0.6) 100%), repeating-linear-gradient(90deg, transparent 0, transparent 95%, rgba(0,0,0,0.5) 95%, rgba(0,0,0,0.5) 100%); border-right: 1px solid rgba(0,0,0,0.5); transition: background-color 0.4s ease; }
.preview-house-window { position: absolute; width: 18px; height: 26px; background: #fde047; border: 2px solid #1e293b; border-radius: 2px; z-index: 2; box-shadow: 0 0 10px rgba(253, 224, 71, 0.5); }
.preview-house-window.w1 { top: 70px; left: 40px; }
.preview-house-window.w2 { top: 70px; right: 40px; }
.preview-house-door { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); width: 24px; height: 36px; background: linear-gradient(180deg, #0f172a 0%, #000 100%); border: 2px solid #1e293b; border-bottom: none; border-radius: 2px 2px 0 0; z-index: 2; }
.preview-house-plinth { position: absolute; bottom: 15px; left: 15px; right: 15px; height: 8px; background: #1e293b; border-radius: 2px; z-index: 2; }
.preview-caption { margin-top: 12px; font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; }

.summary-card { background: linear-gradient(145deg, rgba(0,210,255,0.05), rgba(0,0,0,0.4)); border: 1px solid rgba(0,210,255,0.2); border-radius: 24px; padding: 32px; box-shadow: 0 30px 60px rgba(0,0,0,0.6); }
.summary-title { font-size: 20px; font-weight: 800; margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid rgba(255,255,255,0.05); display: flex; align-items: center; gap: 10px; }
.result-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px dashed rgba(255,255,255,0.05); gap: 16px; font-size: 15px; }
.result-row:last-of-type { border-bottom: none; }
.result-row.subtotal { font-weight: 700; color: var(--text); }
.result-value { font-weight: 700; text-align: right; }
.result-label { color: var(--text-dim); }
.result-row.highlight { background: rgba(0,210,255,0.08); margin: 12px -12px; padding: 16px 12px; border-radius: 12px; border: 1px solid rgba(0,210,255,0.15); }
.result-row.highlight .result-value { color: var(--accent); font-size: 20px; font-weight: 800; }
.result-row.highlight .result-label { color: var(--text); font-weight: 600; }
.result-row.total { margin-top: 20px; padding-top: 24px; border-top: 2px solid var(--accent); border-bottom: none; align-items: flex-end; }
.result-row.total .result-label { font-weight: 700; font-size: 18px; color: var(--text); }
.result-row.total .result-value { font-size: 36px; font-weight: 800; color: var(--accent); line-height: 1; letter-spacing: -1px; }
.summary-actions { margin-top: 32px; display: flex; flex-direction: column; gap: 12px; }

/* WORKS, STEPS, REVIEWS, FAQ, CONTACTS */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.gallery-item { aspect-ratio: 4/3; border-radius: 24px; overflow: hidden; position: relative; cursor: pointer; transition: all 0.4s; border: 1px solid rgba(255,255,255,0.05); background: #0a1224; }
.gallery-item:hover { transform: translateY(-8px); border-color: var(--accent); box-shadow: 0 20px 40px rgba(0,210,255,0.15); }
.gallery-placeholder { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; color: rgba(0,210,255,0.4); z-index: 0; pointer-events: none; background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 16px); }
.gallery-placeholder .ph-icon { font-size: 48px; }
.gallery-item img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s ease; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.9)); opacity: 0; transition: opacity 0.3s; z-index: 2; }
.gallery-item:hover::after { opacity: 1; }
.gallery-caption { position: absolute; bottom: 24px; left: 24px; right: 24px; z-index: 3; opacity: 0; transform: translateY(10px); transition: all 0.4s; }
.gallery-item:hover .gallery-caption { opacity: 1; transform: translateY(0); }
.gallery-caption h3 { font-size: 18px; margin-bottom: 4px; font-weight: 700; }
.gallery-caption p { font-size: 14px; color: var(--accent); font-weight: 600; }

.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.step-card { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 20px; padding: 32px 24px; text-align: center; transition: all 0.3s; backdrop-filter: blur(10px); }
.step-card:hover { border-color: rgba(0,210,255,0.3); transform: translateY(-4px); background: rgba(0,210,255,0.02); }
.step-num-card { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, rgba(0,210,255,0.2), rgba(0,102,204,0.1)); border: 1px solid rgba(0,210,255,0.3); display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 800; margin: 0 auto 20px; color: var(--accent); }
.step-card h3 { font-size: 18px; margin-bottom: 10px; font-weight: 700; }
.step-card p { font-size: 14px; color: var(--text-dim); }

.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.review-card { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 24px; padding: 32px; transition: all 0.3s; display: flex; flex-direction: column; backdrop-filter: blur(10px); }
.review-card:hover { border-color: rgba(0,210,255,0.3); transform: translateY(-4px); background: rgba(0,210,255,0.02); }
.review-stars { color: var(--accent); margin-bottom: 20px; font-size: 18px; letter-spacing: 4px; }
.review-text { font-size: 16px; color: var(--text-dim); margin-bottom: 28px; line-height: 1.8; font-style: italic; flex: 1; }
.review-author { display: flex; align-items: center; gap: 16px; }
.review-avatar { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, #0066cc, #00d2ff); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 18px; color: #000; }
.review-name { font-weight: 700; font-size: 16px; }
.review-meta { font-size: 13px; color: var(--text-dim); }

.faq-wrap { max-width: 840px; margin: 0 auto; }
.faq-item { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; margin-bottom: 16px; overflow: hidden; transition: all 0.3s; backdrop-filter: blur(10px); }
.faq-item:hover { border-color: rgba(0,210,255,0.3); }
.faq-q { padding: 24px 32px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 700; font-size: 17px; gap: 16px; user-select: none; width: 100%; background: none; border: none; color: inherit; font-family: inherit; text-align: left; }
.faq-toggle { width: 32px; height: 32px; border-radius: 50%; background: rgba(0,210,255,0.1); border: 1px solid rgba(0,210,255,0.2); display: flex; align-items: center; justify-content: center; color: var(--accent); transition: transform 0.3s, background 0.3s; flex-shrink: 0; font-size: 20px; line-height: 1; }
.faq-item.open .faq-toggle { transform: rotate(45deg); background: var(--accent); color: #000; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0 32px; color: var(--text-dim); font-size: 16px; line-height: 1.8; }
.faq-item.open .faq-a { max-height: 400px; padding: 0 32px 24px; }

/* VK BANNER */
.vk-section { padding: 0 0 120px; position: relative; }
.vk-banner { 
  display: flex; align-items: center; justify-content: space-between; gap: 40px; 
  background: linear-gradient(135deg, rgba(0, 119, 255, 0.15) 0%, rgba(0, 0, 0, 0.6) 100%); 
  border: 1px solid rgba(0, 119, 255, 0.3); 
  border-radius: 32px; padding: 48px; 
  backdrop-filter: blur(20px); position: relative; overflow: hidden; 
  box-shadow: 0 20px 60px rgba(0, 119, 255, 0.15);
}
.vk-banner::before {
  content: ''; position: absolute; top: -50%; left: -10%; width: 400px; height: 400px;
  background: #0077FF; filter: blur(120px); opacity: 0.3; z-index: 0;
}
.vk-content { display: flex; align-items: center; gap: 32px; position: relative; z-index: 1; }
.vk-icon { 
  width: 80px; height: 80px; background: #0077FF; border-radius: 24px; 
  display: flex; align-items: center; justify-content: center; 
  box-shadow: 0 10px 30px rgba(0, 119, 255, 0.4); flex-shrink: 0;
}
.vk-icon svg { width: 46px; height: 46px; fill: #fff; }
.vk-text h2 { font-size: 28px; font-weight: 800; margin-bottom: 8px; letter-spacing: -0.5px; }
.vk-text p { color: var(--text-dim); font-size: 16px; max-width: 540px; line-height: 1.6; }
.vk-btn { 
  position: relative; z-index: 1; padding: 18px 36px; font-size: 16px; flex-shrink: 0; 
  background: #0077FF; color: #fff; box-shadow: 0 8px 24px rgba(0, 119, 255, 0.4); border: none;
}
.vk-btn:hover { background: #0066dd; box-shadow: 0 12px 32px rgba(0, 119, 255, 0.6); transform: translateY(-3px); }

.contacts-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-item { display: flex; gap: 20px; padding: 24px; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 16px; text-decoration: none; color: var(--text); transition: all 0.3s; align-items: center; backdrop-filter: blur(10px); }
.contact-item:hover { border-color: var(--accent); background: rgba(0,210,255,0.02); transform: translateX(6px); }
.contact-icon { width: 52px; height: 52px; border-radius: 14px; background: rgba(0,210,255,0.1); border: 1px solid rgba(0,210,255,0.2); display: flex; align-items: center; justify-content: center; font-size: 24px; flex-shrink: 0; }
.contact-item h3 { font-size: 12px; color: var(--text-dim); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.contact-item p { font-size: 18px; font-weight: 700; }

.form-wrap { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); border-radius: 24px; padding: 40px; backdrop-filter: blur(10px); }
.form-wrap h3 { font-size: 24px; margin-bottom: 8px; font-weight: 800; }
.form-wrap > p { color: var(--text-dim); font-size: 15px; margin-bottom: 28px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.form-grid .full { grid-column: 1 / -1; }
textarea { resize: vertical; min-height: 100px; }

.consent-check { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 20px; cursor: pointer; font-size: 13px; color: var(--text-dim); line-height: 1.6; user-select: none; }
.consent-check input { position: absolute; opacity: 0; pointer-events: none; }
.consent-check .checkmark { flex-shrink: 0; width: 22px; height: 22px; border: 2px solid rgba(255,255,255,0.2); border-radius: 6px; background: rgba(0,0,0,0.4); position: relative; transition: all .25s; margin-top: 2px; }
.consent-check:hover .checkmark { border-color: var(--accent); }
.consent-check input:checked + .checkmark { background: var(--accent); border-color: var(--accent); }
.consent-check input:checked + .checkmark::after { content: '✓'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #000; font-size: 14px; font-weight: 800; }
.consent-check a { color: var(--accent); text-decoration: underline; }

.form-status { padding: 12px 16px; border-radius: 12px; font-size: 14px; margin-bottom: 16px; display: none; line-height: 1.5; font-weight: 500; }
.form-status.show { display: block; }
.form-status.error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.form-status.success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); color: #86efac; }

.hp-field { position: absolute !important; left: -9999px !important; top: auto !important; width: 1px !important; height: 1px !important; overflow: hidden !important; opacity: 0 !important; pointer-events: none !important; }

/* FOOTER */
footer { border-top: 1px solid rgba(255,255,255,0.05); padding: 48px 0; margin-top: 40px; background: rgba(0,0,0,0.4); backdrop-filter: blur(10px); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; }
.footer-copy { color: var(--text-dim); font-size: 14px; }
.footer-links { display: flex; gap: 32px; flex-wrap: wrap; }
.footer-links a { color: var(--text-dim); text-decoration: none; font-size: 14px; transition: color 0.3s; font-weight: 500; }
.footer-links a:hover { color: var(--accent); }

/* MODALS & TOASTS */
.toast { position: fixed; bottom: 32px; right: 32px; padding: 16px 24px; background: var(--accent); color: #000; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,210,255,0.4); font-weight: 700; font-size: 15px; z-index: 10000; transform: translateY(120px); opacity: 0; visibility: hidden; transition: all 0.4s; max-width: 360px; }
.toast.show { transform: translateY(0); opacity: 1; visibility: visible; }
.toast.error { background: #ef4444; box-shadow: 0 10px 30px rgba(239,68,68,0.4); color: #fff; }

.cookie-banner { position: fixed; bottom: 0; left: 0; right: 0; z-index: 9999; padding: 20px 32px; background: rgba(5,10,20,0.95); backdrop-filter: blur(20px); border-top: 1px solid rgba(255,255,255,0.05); transform: translateY(100%); opacity: 0; visibility: hidden; transition: all 0.4s; }
.cookie-banner.show { transform: translateY(0); opacity: 1; visibility: visible; }
.cookie-banner-inner { max-width: 1320px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.cookie-banner-text { flex: 1; font-size: 14px; line-height: 1.6; color: var(--text-dim); }
.cookie-banner-text strong { display: block; color: var(--text); font-size: 16px; margin-bottom: 6px; }
.cookie-banner-text a { color: var(--accent); text-decoration: underline; }
.cookie-banner-actions { display: flex; gap: 12px; flex-shrink: 0; }

.mobile-sticky-cta { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 900; background: rgba(5,10,20,0.95); backdrop-filter: blur(20px); border-top: 1px solid rgba(255,255,255,0.05); padding: 16px; padding-bottom: calc(16px + env(safe-area-inset-bottom)); gap: 12px; }
.mobile-sticky-cta a { flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px; padding: 14px; border-radius: 12px; font-weight: 700; font-size: 15px; text-decoration: none; text-align: center; }
.mobile-sticky-cta .btn-call { background: var(--accent); color: #000; }
.mobile-sticky-cta .btn-tg { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: var(--text); }

/* PRINT */
#print-section { display: none; }
@media print {
  body > *:not(#print-section) { display: none !important; }
  #print-section { display: block !important; position: absolute; top: 0; left: 0; width: 100%; background: #fff !important; color: #000 !important; padding: 0; margin: 0; }
  html, body { margin: 0 !important; padding: 0 !important; background: #fff !important; height: auto !important; overflow: visible !important; }
  #print-section h1, #print-section h2, #print-section th, #print-section td, #print-section p, #print-section div { color: #000 !important; }
}

@media (max-width: 1024px) {
  .hero { padding: 160px 0 80px; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; gap: 60px; }
  .hero p { margin: 0 auto 40px; }
  .hero-features { justify-content: center; }
  .hero-actions { justify-content: center; }
  .visual-container { margin: 0 auto; }
  .calc-layout { grid-template-columns: 1fr; }
  .calc-results-column { position: static; }
  .contacts-grid { grid-template-columns: 1fr; }
  .vk-banner { flex-direction: column; text-align: center; gap: 32px; }
  .vk-content { flex-direction: column; text-align: center; }
  .vk-text p { margin: 0 auto; }
  .vk-btn { width: 100%; max-width: 300px; }
}
@media (max-width: 768px) {
  nav, .header-right > .btn { display: none; }
  .burger { display: flex; } .header-phone { display: none; }
  section { padding: 80px 0; }
  .hero-features { grid-template-columns: 1fr; text-align: left; max-width: max-content; margin: 0 auto 40px; }
  .form-grid-3, .form-grid { grid-template-columns: 1fr; }
  .opening-row { grid-template-columns: 1fr 1fr 1fr 40px; gap: 8px; }
  .opening-row select, .opening-row input { padding: 10px; font-size: 14px; }
  .glass-stat { padding: 12px 18px; }
  .stat-value { font-size: 24px; }
  .stat-label { font-size: 11px; }
  .glass-stat.top { right: 0; }
  .glass-stat.bottom { left: 0; }
  .cookie-banner-inner { flex-direction: column; align-items: stretch; }
  .cookie-banner-actions { justify-content: stretch; margin-top: 16px; } .cookie-banner-actions .btn { flex: 1; }
  .mobile-sticky-cta { display: flex; } body { padding-bottom: 80px; } footer { margin-bottom: 0; }
  .footer-inner { flex-direction: column; text-align: center; }
  .toast { left: 16px; right: 16px; bottom: 100px; max-width: none; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 16px; }
  .btn { padding: 14px 24px; font-size: 15px; width: 100%; }
  .hero-actions { flex-direction: column; }
  .calc-wrap { padding: 20px; }
  .summary-card { padding: 24px; }
  .result-row.total .result-value { font-size: 28px; }
  .product-specs { grid-template-columns: 1fr 1fr; }
  .compare-table th, .compare-table td { padding: 12px; font-size: 13px; }
  .vk-banner { padding: 32px 24px; border-radius: 24px; }
  .vk-text h2 { font-size: 22px; }
  .vk-icon { width: 64px; height: 64px; border-radius: 16px; }
  .vk-icon svg { width: 32px; height: 32px; }
}


/* /css/premium-2026.css */
/* Премиальное визуальное обновление — поверх проверенной темы. Без изменений JS и ID элементов. */
:root { --bg-1:#080f1c; --bg-2:#060b15; --accent:#42dcf6; --accent-hover:#84edff; --text-dim:#aab9cb; --border:rgba(99,215,238,.21); }
body { background:linear-gradient(155deg,#080f1c 0%,#060b15 55%,#091425 100%); }
body::before { opacity:.35; }
header { background:rgba(6,12,24,.87); border-bottom:1px solid rgba(154,211,233,.12); }
.header-inner { min-height:76px; }
.hero { padding-top:clamp(140px,13vw,190px); padding-bottom:clamp(70px,8vw,115px); }
.hero-grid { gap:clamp(25px,5vw,80px); }
.hero h1 { font-size:clamp(38px,4.65vw,70px); letter-spacing:-.045em; line-height:1.09; text-wrap:balance; }
.hero p { color:#c1ccda; max-width:590px; }
.hero-badge { letter-spacing:.12em; }
.btn { border-radius:14px; min-height:48px; }
.btn-primary { box-shadow:0 10px 35px rgba(30,194,229,.19); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible { outline:3px solid #a2f1ff; outline-offset:4px; }
.product-card { transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease; }
.product-card:hover { transform:translateY(-5px); box-shadow:0 22px 65px rgba(0,0,0,.28); }
.section-title { letter-spacing:-.035em; text-wrap:balance; }
.material-guide { padding:90px 0 100px; position:relative; }
.guide-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:22px; }
.guide-card { padding:clamp(26px,3vw,44px); border-radius:24px; background:linear-gradient(135deg,rgba(35,62,81,.45),rgba(9,22,39,.85)); border:1px solid rgba(105,210,236,.21); box-shadow:0 15px 50px rgba(0,0,0,.13); }
.guide-card:nth-child(2) { background:linear-gradient(135deg,rgba(50,51,75,.48),rgba(9,22,39,.85)); }
.guide-number { color:#80e7f6; font-size:12px; font-weight:800; letter-spacing:.16em; margin-bottom:24px; }
.guide-card h3 { font-size:clamp(22px,2.5vw,32px); line-height:1.2; margin-bottom:16px; }
.guide-card p { color:#b8c7d6; font-size:16px; line-height:1.75; max-width:55ch; margin-bottom:30px; }
.guide-link { color:#9bedfa; font-weight:750; text-decoration:none; border-bottom:1px solid rgba(155,237,250,.5); padding-bottom:6px; }
.guide-link:hover { color:#fff; }
.guide-note { margin-top:22px; color:#aebed0; font-size:14px; }
@media(max-width:760px) { .guide-grid { grid-template-columns:1fr; } .material-guide { padding:64px 0 74px; } .hero h1 { font-size:clamp(34px,9vw,50px); } .hero-actions .btn { white-space:normal; text-align:center; } }
@media(prefers-reduced-motion:reduce) { .product-card, .btn { transition:none!important; } .product-card:hover,.btn:hover { transform:none!important; } }


/* /css/catalog-v3.css */
/* Каталог v3: улучшения без изменения скриптов и калькулятора */
#catalog .section-subtitle{max-width:680px;margin-inline:auto}
.catalog-benefits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:28px 0 32px}
.catalog-benefit{display:flex;align-items:flex-start;gap:14px;padding:20px;border:1px solid rgba(120,220,240,.19);border-radius:18px;background:rgba(18,37,55,.55)}
.catalog-benefit>span{flex:0 0 auto;font-weight:800;font-size:13px;letter-spacing:.09em;color:#7be6f7;border:1px solid rgba(123,230,247,.35);border-radius:9px;padding:8px}
.catalog-benefit strong,.catalog-benefit small{display:block}.catalog-benefit strong{font-size:15px;line-height:1.4;color:#f2f8ff}.catalog-benefit small{margin-top:5px;color:#b7c8d8;font-size:13px;line-height:1.55}
#catalog .catalog-grid{align-items:stretch}#catalog .product-card{display:flex;flex-direction:column;overflow:hidden;border-radius:23px}#catalog .product-body{display:flex;flex:1;flex-direction:column}#catalog .product-specs{margin-bottom:20px}#catalog .product-price{margin-top:auto;padding-top:16px}#catalog .product-image{overflow:hidden}#catalog .product-image img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .4s ease}#catalog .product-card:hover .product-image img{transform:scale(1.035)}
#catalog .catalog-cta{display:flex;justify-content:center;align-items:center;gap:12px;width:100%;margin-top:18px;text-align:center}#catalog .catalog-cta span{font-size:19px}#catalog .catalog-disclaimer{font-size:13px;color:#b9c7d5;line-height:1.6;margin:16px 0 26px}
#catalog .compare-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}#catalog .compare-table{min-width:570px}
@media(max-width:900px){.catalog-benefits{grid-template-columns:1fr}.catalog-benefit{padding:16px}}
@media(max-width:640px){#catalog .product-card:hover{transform:none}#catalog .product-image img{max-height:300px}#catalog .catalog-cta{min-height:52px}}
@media(prefers-reduced-motion:reduce){#catalog .product-image img{transition:none}#catalog .product-card:hover .product-image img{transform:none}}


/* /css/portfolio-v4.css */
/* V4 — улучшение портфолио без изменения калькулятора и форм */
#works .gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
#works .gallery-item{overflow:hidden;border-radius:22px;border:1px solid rgba(124,215,238,.2);background:linear-gradient(160deg,rgba(29,52,73,.65),rgba(10,21,37,.9));box-shadow:0 14px 42px rgba(0,0,0,.16);transition:transform .22s ease,border-color .22s ease}
#works .gallery-item:hover{transform:translateY(-4px);border-color:rgba(124,215,238,.55)}
#works .gallery-open{position:relative;display:block;width:100%;height:245px;padding:0;border:0;cursor:zoom-in;overflow:hidden;background:#162a3c}
#works .gallery-open img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
#works .gallery-open:hover img{transform:scale(1.045)}
#works .gallery-zoom{position:absolute;right:14px;top:14px;display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:rgba(7,17,29,.78);color:#fff;font-size:23px}
#works .gallery-caption{padding:20px 22px 23px}
#works .gallery-caption h3{margin:0 0 8px;font-size:19px}
#works .gallery-caption p{margin:0;color:#bdd0de;font-size:14px}
#works .works-note{margin:22px auto 0;max-width:800px;text-align:center;color:#b8c8d6;font-size:13px;line-height:1.65}
#works .works-cta{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:28px}
.lightbox[hidden]{display:none!important}.lightbox{position:fixed;inset:0;z-index:9999;display:grid;place-items:center;padding:28px}
.lightbox-backdrop{position:absolute;inset:0;background:rgba(2,8,16,.92)}
.lightbox-content{position:relative;z-index:1;max-width:min(1080px,100%);width:100%;text-align:center}
.lightbox-content img{display:block;max-width:100%;max-height:78vh;width:auto;height:auto;margin:auto;object-fit:contain;border-radius:12px}
.lightbox-content p{color:#f4f8fc;font-size:16px;margin:14px 0 0}
.lightbox-close{position:absolute;right:0;top:-48px;width:42px;height:42px;background:#162a3c;color:white;border:1px solid #7dd7ea;border-radius:12px;font-size:30px;cursor:pointer}
#works button:focus-visible,.lightbox button:focus-visible{outline:3px solid #9cf0ff;outline-offset:4px}
@media(max-width:920px){#works .gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){#works .gallery-grid{grid-template-columns:1fr;gap:16px}#works .gallery-open{height:230px}.lightbox{padding:12px}.lightbox-content img{max-height:72vh}.works-cta .btn{width:100%;text-align:center}}
@media(prefers-reduced-motion:reduce){#works .gallery-item,#works .gallery-open img{transition:none}#works .gallery-item:hover{transform:none}}


/* /css/hero-v5.css */
/* V5: первый экран — фотография вместо декоративной CSS-иллюстрации. */
.hero-photo-visual { min-width:0; isolation:isolate; padding:20px 22px 25px 10px; }
.hero-photo-frame { position:relative; width:100%; max-width:570px; aspect-ratio:1/1; overflow:hidden; border-radius:32px; border:1px solid rgba(151,232,248,.28); box-shadow:0 30px 90px rgba(0,0,0,.48),0 0 60px rgba(38,194,228,.09); background:#142336; }
.hero-photo { display:block; width:100%; height:100%; object-fit:cover; }
.hero-photo-shade { position:absolute; inset:40% 0 0; background:linear-gradient(transparent,rgba(4,12,23,.88)); pointer-events:none; }
.hero-photo-caption { position:absolute; bottom:26px; left:26px; right:24px; display:flex; align-items:center; gap:12px; color:#fff; font-size:clamp(15px,1.5vw,20px); font-weight:800; line-height:1.3; text-shadow:0 2px 10px rgba(0,0,0,.45); }
.hero-photo-dot { display:inline-block; flex:none; width:10px; height:10px; background:#58e4ef; border-radius:50%; box-shadow:0 0 0 5px rgba(88,228,239,.15); }
.hero-photo-tag { position:absolute; top:4%; right:0; padding:16px 19px; background:rgba(8,23,39,.94); color:#c6d6e4; border:1px solid rgba(124,220,238,.35); border-radius:16px; font-size:13px; line-height:1.55; box-shadow:0 14px 32px rgba(0,0,0,.28); }
.hero-photo-tag strong { color:#fff; font-size:16px; }
@media(max-width:760px) { .hero-photo-visual { padding:8px 12px 12px; max-width:520px; margin:auto; } .hero-photo-frame { border-radius:22px; } .hero-photo-tag { right:0; top:0; padding:11px 13px; font-size:11px; } .hero-photo-tag strong { font-size:13px; } .hero-photo-caption { bottom:20px; left:20px; right:15px; } }
@media(prefers-reduced-motion:reduce) { .hero-photo-visual * { animation:none!important; transition:none!important; } }


/* /css/calculator-v6.css */
/* V6: только оформление калькулятора. Логика расчётов и отправки не изменяется. */
#calculator { scroll-margin-top:88px; }
#calculator .calc-wrap { position:relative; }
#calculator .calc-intro { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:10px; margin:0 0 23px; }
#calculator .calc-intro span { min-width:0; padding:13px 14px; border:1px solid rgba(115,211,235,.23); background:rgba(24,48,67,.56); border-radius:13px; font-size:12px; color:#8fa9ba; letter-spacing:.02em; }
#calculator .calc-intro b { display:block; color:#f0f8fc; font-size:14px; margin-top:3px; letter-spacing:0; }
#calculator .calc-block { border-radius:20px; transition:border-color .2s ease,box-shadow .2s ease; }
#calculator .calc-block:focus-within { border-color:rgba(70,212,239,.55); box-shadow:0 0 0 1px rgba(70,212,239,.12); }
#calculator .calc-block-title { letter-spacing:-.015em; }
#calculator .form-group input[type=number] { min-height:48px; font-size:16px; }
#calculator .form-group input[type=number]:focus-visible { outline:2px solid #60d9f0; outline-offset:2px; }
#calculator .mode-btn, #calculator .waste-btn, #calculator .btn-add-opening { min-height:43px; }
#calculator .material-card { transition:border-color .18s ease,background .18s ease,transform .18s ease; }
#calculator .material-card:hover { transform:translateY(-2px); }
#calculator .material-card:focus-within { outline:2px solid #60d9f0; outline-offset:2px; }
#calculator .summary-card { border-radius:22px; border:1px solid rgba(92,211,237,.30); box-shadow:0 18px 50px rgba(0,0,0,.17); }
#calculator .summary-title { display:flex; flex-wrap:wrap; justify-content:space-between; align-items:center; gap:10px; }
#calculator .calc-live-label { font-size:11px; font-weight:700; color:#8de8d3; border:1px solid rgba(104,228,196,.3); padding:5px 9px; border-radius:99px; white-space:nowrap; }
#calculator .result-row.total { border-radius:12px; }
#calculator .calc-price-note { font-size:12px; line-height:1.65; color:#a8bdcb; margin:17px 0 14px; }
#calculator .summary-actions .btn { min-height:47px; text-align:center; }
@media(max-width:900px) { #calculator .calc-intro { gap:7px; } #calculator .calc-intro span { padding:10px 9px; } }
@media(max-width:600px) { #calculator .calc-intro { grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; } #calculator .calc-intro span { font-size:11px; } #calculator .calc-intro b { font-size:13px; } #calculator .calc-block { border-radius:16px; } #calculator .summary-card { border-radius:17px; } #calculator .material-card:hover { transform:none; } #calculator .summary-actions .btn { width:100%; } }
@media(prefers-reduced-motion:reduce) { #calculator .calc-block,#calculator .material-card { transition:none; } }


/* /css/contacts-v7.css */
/* V7: визуальные улучшения контактов, без изменения JS и бизнес-логики */
#contacts { scroll-margin-top: 90px; }
#contacts .section-head { margin-bottom: 30px; }
.contact-intro-v7 { display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0 0 24px; }
.contact-intro-v7 > div { display:flex;flex-direction:column;gap:5px;padding:18px 20px;border:1px solid rgba(112,188,233,.23);border-radius:16px;background:linear-gradient(145deg,rgba(80,151,205,.11),rgba(255,255,255,.025)); }
.contact-intro-v7__num {font-size:12px;font-weight:800;letter-spacing:.12em;color:#86c9f5;}
.contact-intro-v7 strong {font-size:16px;color:#f1f7fc;}
.contact-intro-v7 small {font-size:13px;line-height:1.5;color:#b6c4d2;}
.contact-label-v7 {margin:0 0 14px;font-size:13px;letter-spacing:.04em;color:#a8c7db;}
#contacts .contact-item {transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;}
#contacts .contact-item:hover {transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.14);}
#contacts .contact-item:focus-visible,#contacts .form-wrap input:focus-visible,#contacts .form-wrap textarea:focus-visible,#contacts .form-wrap button:focus-visible {outline:3px solid #80caff;outline-offset:3px;}
#contacts .form-wrap {border:1px solid rgba(110,191,238,.26);box-shadow:0 16px 45px rgba(0,0,0,.12);}
.form-tag-v7 {display:inline-flex;padding:6px 11px;margin-bottom:12px;border-radius:999px;background:rgba(73,161,215,.14);color:#a3dbff;font-size:12px;font-weight:700;letter-spacing:.04em;}
#contacts .form-wrap textarea {min-height:110px;resize:vertical;}
#contacts .form-wrap input,#contacts .form-wrap textarea {max-width:100%;}
#contacts .consent-check {line-height:1.5;}
@media(max-width:700px){.contact-intro-v7{grid-template-columns:1fr;gap:9px}.contact-intro-v7>div{padding:13px 16px}.contact-intro-v7 small{font-size:12px}#contacts .form-wrap{padding:22px 18px}#contacts .contact-item:hover{transform:none}}
@media(prefers-reduced-motion:reduce){#contacts .contact-item{transition:none}}


/* /css/mobile-v8.css */
/* V8: mobile usability polish. No JavaScript or business logic changed. */
html {scroll-padding-top: 88px;}
#hero,#catalog,#calculator,#works,#contacts {scroll-margin-top:88px;}
@media (max-width: 768px) {
  html, body {max-width:100%;overflow-x:clip;}
  .container,.header-inner {width:100%;max-width:100%;box-sizing:border-box;padding-left:18px;padding-right:18px;}
  .hero-grid,.catalog-grid,.calc-layout,.contacts-grid {min-width:0;}
  .hero-grid > *,.catalog-grid > *,.calc-layout > *,.contacts-grid > * {min-width:0;}
  .hero-content h1 {overflow-wrap:break-word;hyphens:auto;}
  .hero-photo-frame {max-width:100%;overflow:hidden;}
  .hero-photo {display:block;width:100%;height:auto;max-width:100%;object-fit:cover;}
  .hero-actions {display:flex;flex-wrap:wrap;gap:12px;}
  .hero-actions .btn {min-height:48px;justify-content:center;}
  .product-card img {max-width:100%;}
  .calc-wrap input,.calc-wrap select,.form-wrap input,.form-wrap textarea {font-size:16px;box-sizing:border-box;min-width:0;}
  .calc-wrap button,.form-wrap button,.mobile-menu a {min-height:44px;}
  .calc-form-column,.calc-block,.form-wrap {min-width:0;max-width:100%;}
  .mode-switch {max-width:100%;}
  .mode-switch .mode-btn {white-space:normal;overflow-wrap:anywhere;}
  .form-grid-3,.form-grid {min-width:0;}
  .section-title {overflow-wrap:break-word;}
  .contact-item {min-width:0;}
  .contact-item p {overflow-wrap:anywhere;}
}
@media (max-width: 420px) {
  .container,.header-inner {padding-left:15px;padding-right:15px;}
  .hero-actions .btn {width:100%;}
  .hero-photo-tag {max-width:70%;}
  .calc-intro {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;}
  .calc-intro > span {min-width:0;}
  .form-grid-3 {grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce) {
  html:focus-within {scroll-behavior:auto;}
}


/* /css/trust-v11.css */
/* V11: trustworthy, accessible conversion cards */
.trust-v11__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.trust-v11__card{display:flex;flex-direction:column;align-items:flex-start;min-width:0;padding:28px;border-radius:22px;background:linear-gradient(150deg,rgba(25,48,67,.86),rgba(9,22,37,.94));border:1px solid rgba(125,215,234,.24);box-shadow:0 16px 38px rgba(0,0,0,.12)}
.trust-v11__icon{display:inline-grid;place-items:center;width:48px;height:48px;border-radius:15px;background:rgba(125,215,234,.13);color:#a7eeff;font-weight:800;margin-bottom:18px}
.trust-v11__card h3{font-size:21px;line-height:1.25;margin:0 0 12px;color:#fff}
.trust-v11__card p{color:#c6d5df;line-height:1.7;font-size:15px;margin:0 0 22px;flex:1}
.trust-v11__card a{color:#a9edff;font-weight:700;text-decoration:underline;text-underline-offset:4px}
.trust-v11__card a:hover{color:#fff}
.trust-v11__bottom{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:24px 28px;margin-top:24px;border-radius:20px;border:1px solid rgba(125,215,234,.25);background:rgba(13,31,48,.72)}
.trust-v11__bottom p{margin:0;color:#c6d5df;line-height:1.65}.trust-v11__bottom strong{color:#fff}.trust-v11__bottom .btn{flex-shrink:0}
.trust-v11 a:focus-visible{outline:3px solid #a9edff;outline-offset:5px}
@media(max-width:900px){.trust-v11__grid{grid-template-columns:1fr 1fr}.trust-v11__bottom{align-items:flex-start;flex-direction:column}}
@media(max-width:620px){.trust-v11__grid{grid-template-columns:1fr}.trust-v11__card{padding:23px}.trust-v11__bottom{padding:22px}.trust-v11__bottom .btn{width:100%;text-align:center}}


/* /css/navigation-v13.css */
/* V13: быстрый выбор материала и удобная навигация */
.material-shortcuts-v13{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:22px 0 24px}
.material-shortcut-v13{display:flex;align-items:center;gap:12px;min-width:0;padding:16px;border:1px solid rgba(68,211,237,.28);border-radius:15px;background:rgba(8,24,38,.75);color:#eaf8ff;text-decoration:none;transition:border-color .18s ease,background .18s ease,transform .18s ease}
.material-shortcut-v13:hover{border-color:#45d5ef;background:rgba(23,58,74,.85);transform:translateY(-2px)}
.material-shortcut-v13:focus-visible,.footer-materials-v13 a:focus-visible{outline:3px solid #45d5ef;outline-offset:3px}
.material-shortcut-v13__icon{display:grid;place-items:center;flex:0 0 38px;height:38px;border-radius:10px;background:rgba(69,213,239,.13);color:#45d5ef;font-size:24px}
.material-shortcut-v13 span:nth-child(2){min-width:0;flex:1}.material-shortcut-v13 strong{display:block;font-size:14px;line-height:1.4}.material-shortcut-v13 small{display:block;color:#b8c8d5;font-size:12px;line-height:1.5;margin-top:2px}.material-shortcut-v13>span:last-child{color:#45d5ef;font-size:20px}
.material-shortcut-v13--calc{border-color:rgba(69,213,239,.5)}
.footer-materials-v13{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px}.footer-materials-v13 a{color:#b8dff0;text-decoration:underline;text-underline-offset:3px;font-size:13px}
@media(max-width:850px){.material-shortcuts-v13{grid-template-columns:1fr}.material-shortcut-v13{padding:13px 15px}}
@media(prefers-reduced-motion:reduce){.material-shortcut-v13{transition:none}.material-shortcut-v13:hover{transform:none}}


/* /css/vk-mini-v16.css */
/* V16: компактная плашка VK внутри контактов */
#contacts .vk-mini-v16{display:flex;align-items:center;gap:12px;padding:14px;border:1px solid rgba(83,172,244,.32);border-radius:18px;background:linear-gradient(115deg,rgba(30,119,198,.17),rgba(8,21,35,.65));box-shadow:0 9px 24px rgba(0,0,0,.11);min-width:0}
#contacts .vk-mini-v16__mark{display:grid;place-items:center;width:42px;height:42px;flex:0 0 42px;border-radius:12px;background:#0876f9;color:#fff;font-size:15px;font-weight:900;letter-spacing:-.08em}
#contacts .vk-mini-v16__copy{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
#contacts .vk-mini-v16__copy strong{color:#f2f8ff;font-size:15px;line-height:1.25}
#contacts .vk-mini-v16__copy span{color:#b8c9d9;font-size:12px;line-height:1.4}
#contacts .vk-mini-v16__action{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:9px 13px;border-radius:11px;background:#1682ed;color:white;text-decoration:none;font-size:12px;font-weight:800;white-space:nowrap;transition:background .2s ease,transform .2s ease}
#contacts .vk-mini-v16__action:hover{background:#359afa;transform:translateY(-1px)}
#contacts .vk-mini-v16__action:focus-visible{outline:3px solid #9cddff;outline-offset:3px}
@media(max-width:480px){#contacts .vk-mini-v16{flex-wrap:wrap;gap:10px;padding:12px}#contacts .vk-mini-v16__copy{flex-basis:calc(100% - 60px)}#contacts .vk-mini-v16__action{width:100%;min-height:44px}}
@media(prefers-reduced-motion:reduce){#contacts .vk-mini-v16__action{transition:none}}


/* /css/accessibility-v17.css */
/* V17: доступность навигации без изменений бизнес-логики */
.product-details-link{margin:14px 0 0;text-align:center}
.product-details-link a{color:#83d9ff;font-weight:700;text-underline-offset:4px}
.product-details-link a:focus-visible{outline:2px solid #83d9ff;outline-offset:3px}
#main-content:focus{outline:none}
html{scroll-padding-top:86px}
section[id]{scroll-margin-top:86px}
@media(max-width:640px){html{scroll-padding-top:76px}section[id]{scroll-margin-top:76px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto!important}}


/* /css/mobile-calculator-v19.css */
/* V19: адаптивное представление сметы, без изменений расчётов */
#calculator .summary-card{min-width:0}
#calculator .result-row{min-width:0;gap:12px}
#calculator .result-row .result-label{min-width:0}
#calculator .result-row .result-value{text-align:right;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
#calculator .summary-actions{gap:10px}
#calculator .summary-actions .btn{white-space:normal;line-height:1.3}
@media(max-width:600px){
  #calculator .calc-results-column{min-width:0}
  #calculator .summary-card{padding:18px 15px 19px}
  #calculator .summary-title{font-size:18px;line-height:1.3;gap:8px}
  #calculator .calc-live-label{font-size:10px;padding:4px 8px}
  #calculator .result-row{display:flex;align-items:baseline;justify-content:space-between;gap:9px;padding:11px 0}
  #calculator .result-row .result-label{flex:1 1 48%;font-size:12px;line-height:1.4}
  #calculator .result-row .result-value{flex:0 1 52%;font-size:14px;line-height:1.35}
  #calculator .result-row.total{align-items:center;padding:15px 12px;margin-top:10px}
  #calculator .result-row.total .result-label{font-size:14px;font-weight:700}
  #calculator .result-row.total .result-value{font-size:clamp(19px,6vw,27px);font-weight:800;letter-spacing:-.025em}
  #calculator .calc-price-note{font-size:12px;line-height:1.55;margin:12px 0}
  #calculator .summary-actions{display:grid;grid-template-columns:minmax(0,1fr);gap:9px;margin-top:15px}
  #calculator .summary-actions .btn{width:100%;min-height:50px;padding:12px 10px;font-size:14px}
}
@media(max-width:360px){#calculator .summary-card{padding:15px 11px}#calculator .result-row .result-label{font-size:11px}#calculator .result-row .result-value{font-size:12px}}


/* /css/application-v20.css */
/* V20 — discreet estimate confirmation inside the contact form. */
.estimate-transfer-v20[hidden]{display:none!important}
.estimate-transfer-v20{display:flex;align-items:flex-start;gap:12px;padding:15px 17px;margin:0 0 20px;border:1px solid rgba(79,185,140,.42);border-radius:14px;background:linear-gradient(135deg,rgba(48,144,105,.13),rgba(48,144,105,.045));color:inherit}
.estimate-transfer-v20__icon{display:grid;place-items:center;flex:0 0 30px;width:30px;height:30px;border-radius:50%;background:#1b956a;color:white;font-weight:800}
.estimate-transfer-v20__body{display:flex;flex-direction:column;gap:5px;min-width:0}
.estimate-transfer-v20__body strong{font-size:15px;line-height:1.35}
.estimate-transfer-v20__body span{font-size:13px;line-height:1.5;opacity:.85}
.estimate-transfer-v20__body a{font-size:13px;font-weight:700;color:#59c7a0;text-decoration:underline;text-underline-offset:3px;width:max-content;max-width:100%}
.estimate-transfer-v20__body a:focus-visible{outline:2px solid currentColor;outline-offset:4px}
@media(max-width:480px){.estimate-transfer-v20{padding:13px;gap:10px}}


/* /css/application-v21.css */
.field-hint-v21{display:block;margin-top:7px;font-size:12px;line-height:1.45;color:var(--text-dim,#718096)}.comment-meta-v21{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-top:7px;font-size:12px;line-height:1.45;color:var(--text-dim,#718096)}.comment-meta-v21 small{font-size:inherit}.comment-meta-v21 span{white-space:nowrap;font-variant-numeric:tabular-nums}.form-reassurance-v21{margin:14px 0 12px;font-size:13px;line-height:1.5;color:var(--text-dim,#718096);text-align:center}#contactForm [aria-invalid="true"]{border-color:#e06464!important;box-shadow:0 0 0 2px rgba(224,100,100,.12)}@media(max-width:480px){.comment-meta-v21{flex-wrap:wrap}.form-reassurance-v21{font-size:12px}}