/* SKRAVT — Glassmorphism Landing | main.css */

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

:root {
  --bg-deep:       #0a0e14;
  --bg-dark:       #0d1117;
  --bg-card:       #111820;
  --glass-bg:      rgba(255,255,255,0.06);
  --glass-bg-h:    rgba(255,255,255,0.10);
  --glass-border:  rgba(255,255,255,0.12);
  --glass-border-h:rgba(255,255,255,0.22);
  --blue:          #4a9eff;
  --blue-dark:     #2d7fe8;
  --blue-glow:     rgba(74,158,255,0.18);
  --gold:          #e8b84b;
  --gold-dark:     #c9982a;
  --text-primary:  #f0f4f8;
  --text-muted:    rgba(240,244,248,0.60);
  --text-dim:      rgba(240,244,248,0.35);
  --success:       #34d399;
  --error:         #f87171;
  --radius-sm:     8px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --radius-xl:     32px;
  --blur-sm:       blur(8px);
  --blur-md:       blur(16px);
  --blur-lg:       blur(24px);
  --shadow-card:   0 8px 32px rgba(0,0,0,0.40);
  --shadow-glow:   0 0 40px rgba(74,158,255,0.15);
  --transition:    0.3s cubic-bezier(0.4,0,0.2,1);
  --max-w:         1320px;
  --section-py:    96px;
}

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

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

/* Firefox fallback for backdrop-filter */
@supports not (backdrop-filter: blur(1px)) {
  .glass { background: rgba(13,17,23,0.92) !important; }
}

/* ======================== UTILITY ======================== */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-py) 0; }
.section--dark { background: var(--bg-dark); }
.section--deeper { background: var(--bg-deep); }

.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
}
.glass--strong {
  background: rgba(255,255,255,0.09);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
}

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 100px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  background: rgba(74,158,255,0.12); border: 1px solid rgba(74,158,255,0.3);
  color: var(--blue);
}
.badge--gold { background: rgba(232,184,75,0.12); border-color: rgba(232,184,75,0.3); color: var(--gold); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600; letter-spacing: 0.02em;
  cursor: pointer; border: none; transition: var(--transition);
  text-decoration: none; white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: #fff; box-shadow: 0 4px 20px rgba(74,158,255,0.35);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(74,158,255,0.50); }
.btn--outline {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--glass-border-h);
}
.btn--outline:hover { background: var(--glass-bg); border-color: var(--blue); color: var(--blue); }
.btn--gold {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: #0d1117; box-shadow: 0 4px 20px rgba(232,184,75,0.30);
}
.btn--gold:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232,184,75,0.45); }
.btn--lg { padding: 18px 40px; font-size: 17px; border-radius: var(--radius-md); }
.btn--sm { padding: 10px 20px; font-size: 13px; }

.tag {
  display: inline-block; padding: 4px 12px; border-radius: 100px;
  font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  background: rgba(74,158,255,0.10); color: var(--blue);
  border: 1px solid rgba(74,158,255,0.2);
}

/* ======================== TYPOGRAPHY ======================== */
h1 { font-size: clamp(36px, 5vw, 64px); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 3.5vw, 48px); font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
h3 { font-size: clamp(20px, 2.5vw, 28px); font-weight: 600; line-height: 1.3; }
h4 { font-size: 18px; font-weight: 600; line-height: 1.4; }
p { color: var(--text-muted); }

.text-gradient {
  background: linear-gradient(135deg, var(--blue) 0%, #7bc8ff 50%, var(--gold) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.text-blue { color: var(--blue); }
.text-gold { color: var(--gold); }
.text-muted { color: var(--text-muted); }

.section-label { margin-bottom: 16px; }
.section-title { margin-bottom: 16px; }
.section-sub { max-width: 640px; margin-bottom: 48px; font-size: 18px; }

/* ======================== ANIMATIONS ======================== */
@keyframes fadeUp { from { opacity:0; transform:translateY(30px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@keyframes pulseBlue { 0%,100% { box-shadow: 0 0 20px rgba(74,158,255,0.2); } 50% { box-shadow: 0 0 40px rgba(74,158,255,0.5); } }
@keyframes lineGrow { from { width:0; } to { width:100%; } }
@keyframes float { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-8px); } }
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes countUp { from { opacity:0; transform:scale(0.8); } to { opacity:1; transform:scale(1); } }

.animate-fadeup { opacity:0; animation: fadeUp 0.7s ease forwards; }
.animate-fadeup.delay-1 { animation-delay: 0.1s; }
.animate-fadeup.delay-2 { animation-delay: 0.2s; }
.animate-fadeup.delay-3 { animation-delay: 0.3s; }
.animate-fadeup.delay-4 { animation-delay: 0.4s; }

.reveal { opacity:0; transform:translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }

/* ======================== NAVBAR ======================== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0;
  background: rgba(10,14,20,0.70);
  backdrop-filter: var(--blur-md); -webkit-backdrop-filter: var(--blur-md);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}
.navbar.scrolled { padding: 10px 0; background: rgba(10,14,20,0.92); }
.navbar__inner { display: flex; align-items: center; justify-content: space-between; }
.navbar__logo { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; text-decoration: none; }
.navbar__logo span:first-child { color: var(--text-primary); }
.navbar__logo span:last-child { color: var(--blue); }
.navbar__nav { display: flex; align-items: center; gap: 32px; }
.navbar__nav a { color: var(--text-muted); text-decoration: none; font-size: 14px; font-weight: 500; transition: var(--transition); }
.navbar__nav a:hover { color: var(--text-primary); }
.navbar__cta { display: flex; gap: 12px; }
.navbar__burger { display: none; cursor: pointer; background: none; border: none; padding: 4px; }
.navbar__burger span { display: block; width: 24px; height: 2px; background: var(--text-primary); margin: 5px 0; transition: var(--transition); }

/* Mobile nav */
.nav-mobile { display: none; flex-direction: column; position: fixed; inset: 0; z-index: 999; padding: 100px 24px 40px; background: rgba(10,14,20,0.97); backdrop-filter: var(--blur-lg); }
.nav-mobile.open { display: flex; }
.nav-mobile a { font-size: 24px; font-weight: 600; color: var(--text-primary); text-decoration: none; padding: 16px 0; border-bottom: 1px solid var(--glass-border); transition: var(--transition); }
.nav-mobile a:hover { color: var(--blue); }
.nav-mobile .btn { margin-top: 32px; width: 100%; justify-content: center; }

/* ======================== HERO ======================== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(74,158,255,0.12) 0%, transparent 60%),
              radial-gradient(ellipse 60% 40% at 20% 80%, rgba(232,184,75,0.06) 0%, transparent 50%),
              linear-gradient(160deg, #0a0e14 0%, #0d1117 40%, #0f1923 70%, #0a0e14 100%);
}
.hero__grid {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(74,158,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74,158,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}
.hero__particles {
  position: absolute; inset: 0; z-index: 1;
  overflow: hidden;
}
.hero__particles::before, .hero__particles::after {
  content: ''; position: absolute;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}
.hero__particles::before {
  width: 400px; height: 400px; top: -100px; right: -100px;
  background: radial-gradient(circle, rgba(74,158,255,0.08) 0%, transparent 70%);
}
.hero__particles::after {
  width: 300px; height: 300px; bottom: 0; left: 10%;
  background: radial-gradient(circle, rgba(232,184,75,0.05) 0%, transparent 70%);
  animation-delay: -3s;
}

.hero__content { position: relative; z-index: 2; }
.hero__inner { display: grid; grid-template-columns: 1fr 420px; gap: 60px; align-items: center; }

.hero__badge { margin-bottom: 24px; }
.hero__title { margin-bottom: 24px; }
.hero__title .line { display: block; }
.hero__sub { font-size: clamp(16px, 1.5vw, 19px); color: var(--text-muted); margin-bottom: 40px; max-width: 520px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero__trust { display: flex; gap: 24px; flex-wrap: wrap; }
.hero__trust-item { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-muted); }
.hero__trust-item svg { color: var(--success); flex-shrink: 0; }

/* Hero card */
.hero__card {
  padding: 32px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  animation: float 8s ease-in-out infinite;
}
.hero__card-title { font-size: 14px; font-weight: 600; color: var(--text-muted); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.06em; }
.hero__card-items { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.hero__card-item { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06); }
.hero__card-item-icon { width: 36px; height: 36px; border-radius: 8px; background: rgba(74,158,255,0.15); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--blue); }
.hero__card-item-text { flex: 1; }
.hero__card-item-text strong { display: block; font-size: 14px; color: var(--text-primary); }
.hero__card-item-text span { font-size: 12px; color: var(--text-muted); }
.hero__card-stat { display: flex; justify-content: space-between; padding-top: 20px; border-top: 1px solid var(--glass-border); }
.hero__card-stat-item { text-align: center; }
.hero__card-stat-num { font-size: 24px; font-weight: 800; color: var(--blue); display: block; }
.hero__card-stat-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* ======================== STATS ======================== */
.stats { padding: 60px 0; background: var(--bg-dark); border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; }
.stats__item { padding: 32px 24px; text-align: center; position: relative; }
.stats__item:not(:last-child)::after { content:''; position:absolute; right:0; top:20%; bottom:20%; width:1px; background:var(--glass-border); }
.stats__num { font-size: clamp(36px, 4vw, 52px); font-weight: 800; line-height: 1; margin-bottom: 8px; background: linear-gradient(135deg, var(--blue), #7bc8ff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stats__label { font-size: 14px; color: var(--text-muted); }

/* ======================== PAIN ======================== */
.pain__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.pain__item { padding: 24px; border-radius: var(--radius-md); background: rgba(248,113,113,0.04); border: 1px solid rgba(248,113,113,0.12); transition: var(--transition); }
.pain__item:hover { border-color: rgba(248,113,113,0.25); transform: translateY(-2px); }
.pain__icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(248,113,113,0.10); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: #f87171; }
.pain__item h4 { margin-bottom: 8px; font-size: 16px; }
.pain__item p { font-size: 14px; }

/* ======================== CATALOG ======================== */
.catalog__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.catalog__card {
  border-radius: var(--radius-lg); overflow: hidden;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  transition: var(--transition); position: relative;
}
.catalog__card:hover { transform: translateY(-4px); border-color: rgba(74,158,255,0.30); box-shadow: 0 12px 40px rgba(0,0,0,0.4), var(--shadow-glow); }
.catalog__img { aspect-ratio: 4/3; overflow: hidden; position: relative; background: linear-gradient(135deg, #1a2332 0%, #111820 100%); }
.catalog__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.catalog__card:hover .catalog__img img { transform: scale(1.05); }
.catalog__img-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.catalog__badge { position: absolute; top: 12px; left: 12px; }
.catalog__body { padding: 24px; }
.catalog__body h3 { font-size: 18px; margin-bottom: 8px; }
.catalog__body p { font-size: 14px; margin-bottom: 16px; }
.catalog__specs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.catalog__spec { padding: 4px 10px; border-radius: 6px; background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); font-size: 12px; color: var(--text-muted); }
.catalog__footer { display: flex; justify-content: space-between; align-items: center; padding-top: 16px; border-top: 1px solid var(--glass-border); }
.catalog__price { font-size: 14px; color: var(--text-muted); }
.catalog__price strong { display: block; font-size: 20px; color: var(--blue); font-weight: 700; }

/* ======================== PROCESS ======================== */
.process__steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.process__steps::before { content: ''; position: absolute; top: 32px; left: 12.5%; right: 12.5%; height: 2px; background: linear-gradient(90deg, var(--blue), rgba(74,158,255,0.3)); z-index: 0; }
.process__step { padding: 24px; text-align: center; position: relative; z-index: 1; }
.process__num { width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 800; color: var(--blue); background: var(--bg-dark); border: 2px solid var(--blue); position: relative; }
.process__num::after { content: ''; position: absolute; inset: -4px; border-radius: 50%; border: 1px solid rgba(74,158,255,0.25); }
.process__step h4 { margin-bottom: 8px; }
.process__step p { font-size: 14px; }
.process__time { display: inline-block; margin-top: 12px; padding: 4px 12px; border-radius: 100px; background: rgba(74,158,255,0.10); color: var(--blue); font-size: 12px; font-weight: 600; }

/* ======================== SEGMENTS ======================== */
.segments__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.segment__card { padding: 32px; border-radius: var(--radius-lg); background: var(--glass-bg); border: 1px solid var(--glass-border); transition: var(--transition); }
.segment__card:hover { border-color: rgba(74,158,255,0.25); background: var(--glass-bg-h); }
.segment__icon { width: 56px; height: 56px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; font-size: 24px; }
.segment__icon--blue { background: rgba(74,158,255,0.12); }
.segment__icon--gold { background: rgba(232,184,75,0.12); }
.segment__icon--green { background: rgba(52,211,153,0.12); }
.segment__card h3 { font-size: 20px; margin-bottom: 12px; }
.segment__card p { font-size: 15px; margin-bottom: 20px; }
.segment__list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.segment__list li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--text-muted); }
.segment__list li::before { content: '✓'; color: var(--success); font-weight: 700; flex-shrink: 0; }

/* ======================== CUSTOM ======================== */
.custom__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.custom__steps { display: flex; flex-direction: column; gap: 24px; margin: 32px 0; }
.custom__step { display: flex; gap: 16px; align-items: flex-start; }
.custom__step-num { width: 36px; height: 36px; border-radius: 50%; background: rgba(74,158,255,0.12); border: 1px solid rgba(74,158,255,0.3); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; color: var(--blue); flex-shrink: 0; }
.custom__step-text strong { display: block; margin-bottom: 4px; }
.custom__step-text span { font-size: 14px; color: var(--text-muted); }
.custom__visual { position: relative; }
.custom__blueprint { width: 100%; aspect-ratio: 4/3; border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(135deg, #0a1628 0%, #0d1117 100%); border: 1px solid rgba(74,158,255,0.2); display: flex; align-items: center; justify-content: center; }

/* ======================== PRODUCTION ======================== */
.production__gallery { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: auto auto; gap: 16px; }
.production__item { border-radius: var(--radius-md); overflow: hidden; position: relative; background: var(--bg-card); }
.production__item:first-child { grid-column: 1 / 2; grid-row: 1 / 3; }
.production__item img { width: 100%; height: 100%; object-fit: cover; }
.production__item-label { position: absolute; bottom: 0; left: 0; right: 0; padding: 12px 16px; background: linear-gradient(transparent, rgba(10,14,20,0.9)); font-size: 13px; font-weight: 500; }
.production__placeholder { width: 100%; height: 200px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #111820, #1a2332); }
.production__placeholder--tall { height: 416px; }

/* ======================== CALCULATOR ======================== */
.calc__inner { max-width: 720px; margin: 0 auto; }
.calc__card { padding: 48px; border-radius: var(--radius-xl); background: rgba(74,158,255,0.04); border: 1px solid rgba(74,158,255,0.15); box-shadow: var(--shadow-glow); }
.calc__form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 28px; }
.calc__result { padding: 24px; border-radius: var(--radius-md); background: rgba(74,158,255,0.08); border: 1px solid rgba(74,158,255,0.20); text-align: center; margin-bottom: 24px; display: none; }
.calc__result.visible { display: block; }
.calc__result-price { font-size: 48px; font-weight: 800; color: var(--blue); line-height: 1; }
.calc__result-note { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* ======================== COMPARE ======================== */
.compare__table { width: 100%; border-collapse: separate; border-spacing: 0; border-radius: var(--radius-lg); overflow: hidden; }
.compare__table th { padding: 20px 24px; font-size: 14px; font-weight: 600; text-align: left; background: rgba(255,255,255,0.05); color: var(--text-muted); }
.compare__table th:nth-child(2) { background: rgba(74,158,255,0.08); color: var(--blue); text-align: center; }
.compare__table td { padding: 16px 24px; border-bottom: 1px solid var(--glass-border); font-size: 15px; }
.compare__table td:nth-child(2) { background: rgba(74,158,255,0.04); font-weight: 600; color: var(--text-primary); text-align: center; }
.compare__table tr:last-child td { border-bottom: none; }
.compare__check { color: var(--success); }
.compare__cross { color: #f87171; }

/* ======================== GUARANTEE ======================== */
.guarantee__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.guarantee__item { padding: 32px; border-radius: var(--radius-lg); border: 1px solid var(--glass-border); background: var(--glass-bg); text-align: center; transition: var(--transition); }
.guarantee__item:hover { border-color: rgba(74,158,255,0.25); }
.guarantee__icon { font-size: 40px; margin-bottom: 16px; display: block; }
.guarantee__item h4 { margin-bottom: 12px; }

/* ======================== REVIEWS ======================== */
.reviews__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.review__card { padding: 28px; border-radius: var(--radius-lg); background: var(--glass-bg); border: 1px solid var(--glass-border); transition: var(--transition); }
.review__card:hover { border-color: rgba(74,158,255,0.20); transform: translateY(-2px); }
.review__stars { display: flex; gap: 4px; margin-bottom: 16px; }
.review__star { color: var(--gold); font-size: 16px; }
.review__text { font-size: 15px; color: var(--text-muted); margin-bottom: 20px; font-style: italic; line-height: 1.7; }
.review__author { display: flex; align-items: center; gap: 12px; }
.review__avatar { width: 44px; height: 44px; border-radius: 50%; background: rgba(74,158,255,0.15); border: 1px solid rgba(74,158,255,0.2); display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--blue); font-size: 16px; }
.review__name { font-size: 14px; font-weight: 600; }
.review__meta { font-size: 12px; color: var(--text-muted); }

/* ======================== PROMO ======================== */
.promo { background: linear-gradient(135deg, rgba(74,158,255,0.10) 0%, rgba(232,184,75,0.06) 100%); border-top: 1px solid rgba(74,158,255,0.15); border-bottom: 1px solid rgba(74,158,255,0.15); }
.promo__inner { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: center; }
.promo__badge { margin-bottom: 12px; }
.promo__title { font-size: clamp(22px, 3vw, 32px); font-weight: 700; margin-bottom: 12px; }
.promo__sub { color: var(--text-muted); }
.promo__actions { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
.promo__timer { font-size: 13px; color: var(--text-muted); text-align: center; }

/* ======================== FAQ ======================== */
.faq__list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.faq__item { border-radius: var(--radius-md); border: 1px solid var(--glass-border); overflow: hidden; transition: var(--transition); }
.faq__item.open { border-color: rgba(74,158,255,0.25); }
.faq__question { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 24px; background: none; border: none; cursor: pointer; text-align: left; font-size: 16px; font-weight: 600; color: var(--text-primary); transition: var(--transition); }
.faq__question:hover { background: rgba(255,255,255,0.03); }
.faq__icon { width: 24px; height: 24px; border-radius: 50%; background: rgba(74,158,255,0.10); border: 1px solid rgba(74,158,255,0.2); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--blue); font-size: 14px; transition: var(--transition); }
.faq__item.open .faq__icon { transform: rotate(45deg); background: rgba(74,158,255,0.20); }
.faq__answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq__answer-inner { padding: 0 24px 20px; font-size: 15px; color: var(--text-muted); line-height: 1.7; }

/* ======================== FORMS ======================== */
.forms__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.form-card { padding: 32px; border-radius: var(--radius-lg); background: var(--glass-bg); border: 1px solid var(--glass-border); backdrop-filter: var(--blur-md); -webkit-backdrop-filter: var(--blur-md); }
.form-card__tag { margin-bottom: 16px; }
.form-card h3 { margin-bottom: 8px; font-size: 20px; }
.form-card > p { font-size: 14px; margin-bottom: 24px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--text-muted); margin-bottom: 6px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px;
  background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: 15px; font-family: inherit;
  transition: var(--transition); outline: none;
  appearance: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: rgba(74,158,255,0.5); background: rgba(74,158,255,0.04);
  box-shadow: 0 0 0 3px rgba(74,158,255,0.10);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-dim); }
.form-group select option { background: var(--bg-dark); }
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group input[type="file"] { padding: 8px 12px; cursor: pointer; }

.form-submit { width: 100%; margin-top: 8px; }
.form-privacy { font-size: 12px; color: var(--text-dim); margin-top: 10px; text-align: center; }
.form-privacy a { color: var(--text-muted); }

.form-success { display: none; text-align: center; padding: 24px; }
.form-success.visible { display: block; }
.form-success__icon { font-size: 48px; display: block; margin-bottom: 16px; }
.form-success__title { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.form-success__sub { color: var(--text-muted); font-size: 14px; }

/* ======================== DROPZONE ======================== */
.dropzone { border: 2px dashed rgba(74,158,255,0.25); border-radius: var(--radius-md); padding: 24px; text-align: center; cursor: pointer; transition: var(--transition); margin-bottom: 16px; }
.dropzone:hover, .dropzone.dragover { border-color: rgba(74,158,255,0.5); background: rgba(74,158,255,0.04); }
.dropzone__icon { font-size: 24px; margin-bottom: 8px; display: block; color: var(--blue); }
.dropzone__text { font-size: 14px; color: var(--text-muted); }
.dropzone__file { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* ======================== POPUP ======================== */
.popup-overlay { position: fixed; inset: 0; z-index: 2000; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0.7); backdrop-filter: blur(8px); opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.popup-overlay.open { opacity: 1; pointer-events: all; }
.popup { max-width: 480px; width: 90%; padding: 40px; border-radius: var(--radius-xl); background: var(--bg-card); border: 1px solid var(--glass-border); box-shadow: 0 24px 64px rgba(0,0,0,0.6); transform: scale(0.95); transition: transform 0.3s; }
.popup-overlay.open .popup { transform: scale(1); }
.popup__close { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid var(--glass-border); cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 18px; transition: var(--transition); }
.popup__close:hover { background: rgba(255,255,255,0.15); }
.popup { position: relative; }

/* ======================== FOOTER ======================== */
.footer { padding: 64px 0 32px; background: var(--bg-deep); border-top: 1px solid var(--glass-border); }
.footer__top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer__brand { max-width: 280px; }
.footer__logo { font-size: 24px; font-weight: 800; margin-bottom: 16px; display: block; }
.footer__logo span { color: var(--blue); }
.footer__desc { font-size: 14px; color: var(--text-muted); margin-bottom: 24px; }
.footer__col h4 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 20px; }
.footer__links { display: flex; flex-direction: column; gap: 10px; }
.footer__links a { font-size: 14px; color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.footer__links a:hover { color: var(--text-primary); }
.footer__contact { display: flex; flex-direction: column; gap: 12px; }
.footer__contact-item { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-muted); }
.footer__contact-item a { color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.footer__contact-item a:hover { color: var(--text-primary); }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 32px; border-top: 1px solid var(--glass-border); flex-wrap: wrap; gap: 16px; }
.footer__copy { font-size: 13px; color: var(--text-dim); }
.footer__legal { display: flex; gap: 24px; }
.footer__legal a { font-size: 13px; color: var(--text-dim); text-decoration: none; transition: var(--transition); }
.footer__legal a:hover { color: var(--text-muted); }

/* ======================== SCROLL-TO-TOP ======================== */
.scroll-top { position: fixed; bottom: 32px; right: 32px; z-index: 900; width: 48px; height: 48px; border-radius: 50%; background: rgba(74,158,255,0.15); border: 1px solid rgba(74,158,255,0.3); cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--blue); opacity: 0; pointer-events: none; transition: var(--transition); }
.scroll-top.visible { opacity: 1; pointer-events: all; }
.scroll-top:hover { background: rgba(74,158,255,0.25); transform: translateY(-2px); }

/* ======================== FIELD ERRORS ======================== */
.field-error { font-size: 12px; color: var(--error); margin-top: 4px; display: none; }
.field-error.visible { display: block; }
.form-group.has-error input, .form-group.has-error select, .form-group.has-error textarea { border-color: rgba(248,113,113,0.5); }

/* ======================== RESPONSIVE ======================== */
@media (max-width: 1200px) {
  .catalog__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1024px) {
  :root { --section-py: 72px; }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__card { display: none; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stats__item::after { display: none; }
  .process__steps { grid-template-columns: repeat(2, 1fr); }
  .process__steps::before { display: none; }
  .custom__inner { grid-template-columns: 1fr; }
  .custom__visual { display: none; }
  .forms__grid { grid-template-columns: 1fr; }
  .promo__inner { grid-template-columns: 1fr; }
  .promo__actions { align-items: flex-start; }
}

@media (max-width: 768px) {
  :root { --section-py: 56px; }
  h1 { font-size: 34px; }
  h2 { font-size: 26px; }
  .navbar__nav, .navbar__cta { display: none; }
  .navbar__burger { display: block; }
  .pain__grid { grid-template-columns: 1fr; }
  .catalog__grid { grid-template-columns: 1fr; }
  .segments__grid { grid-template-columns: 1fr; }
  .production__gallery { grid-template-columns: 1fr 1fr; }
  .production__item:first-child { grid-column: 1 / 3; grid-row: auto; }
  .reviews__grid { grid-template-columns: 1fr; }
  .guarantee__grid { grid-template-columns: 1fr; }
  .compare__table th:last-child, .compare__table td:last-child { display: none; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .calc__form { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
  :root { --section-py: 48px; }
  .container { padding: 0 16px; }
  .production__gallery { grid-template-columns: 1fr; }
  .production__item:first-child { grid-column: auto; }
}