/* ================================================================== *
 *  QTRONIX BBQ SOLUTIONS — DESIGN SYSTEM
 *  Палитра: стальной холодный фон + огненный акцент (steel + fire)
 *  Совместимость: все современные браузеры, мобильные 360px+
 * ================================================================== */

/* ---------- 1. ПЕРЕМЕННЫЕ ---------- */
:root {
  /* — Тёмная тема (по умолчанию) — */
  --color-bg:            #0d1117;
  --color-bg-alt:        #161b22;
  --color-surface:       #1c2128;
  --color-surface-2:     #22262e;
  --color-surface-hover: #22262e;
  --color-text:          #e6edf3;
  --color-text-muted:    #8b949e;
  --color-text-dim:      #6e7681;
  --color-border:        rgba(139, 148, 158, 0.16);
  --color-border-strong: rgba(139, 148, 158, 0.28);

  --color-accent:        #f97316;  /* ember */
  --color-accent-2:      #ea580c;  /* dark fire */
  --color-accent-3:      #fb923c;  /* light ember */
  --color-accent-soft:   rgba(249, 115, 22, 0.12);
  --color-accent-glow:   rgba(249, 115, 22, 0.35);
  --color-success:       #2fbf71;
  --color-error:         #e2596a;
  --color-warn:          #f5b942;
  --color-steel:         #94a3b8;  /* стальной серебристый */
  --color-steel-dark:    #475569;

  /* — Радиусы — */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  /* — Тени — */
  --shadow-card:    0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-card-2:  0 20px 60px rgba(0, 0, 0, 0.55);
  --shadow-accent:  0 10px 30px rgba(249, 115, 22, 0.25);
  --shadow-glow:    0 0 40px rgba(249, 115, 22, 0.35);
  --shadow-inset:   inset 0 1px 0 rgba(255, 255, 255, 0.04);

  /* — Переходы — */
  --transition:       0.25s ease;
  --transition-slow:  0.4s cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast:  0.15s ease;

  /* — Типографика — */
  --font-display: 'Manrope', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  /* — Контейнеры — */
  --container: 1200px;
  --container-narrow: 960px;
  --gutter: clamp(16px, 4vw, 32px);

  /* — Header — */
  --header-h: 68px;
}

[data-theme="light"] {
  --color-bg:            #f6f7f9;
  --color-bg-alt:        #eef0f3;
  --color-surface:       #ffffff;
  --color-surface-2:     #f3f4f7;
  --color-surface-hover: #f0f1f4;
  --color-text:          #0d1117;
  --color-text-muted:    #4a5563;
  --color-text-dim:      #6b7280;
  --color-border:        rgba(15, 23, 42, 0.12);
  --color-border-strong: rgba(15, 23, 42, 0.22);

  --color-accent:      #ea580c;
  --color-accent-2:    #c2410c;
  --color-accent-3:    #f97316;
  --color-accent-soft: rgba(234, 88, 12, 0.10);
  --color-accent-glow: rgba(234, 88, 12, 0.25);

  --color-steel:      #64748b;
  --color-steel-dark: #94a3b8;

  --shadow-card:    0 10px 30px rgba(15, 23, 42, 0.10);
  --shadow-card-2:  0 20px 50px rgba(15, 23, 42, 0.12);
  --shadow-accent:  0 10px 30px rgba(234, 88, 12, 0.22);
  --shadow-glow:    0 0 40px rgba(234, 88, 12, 0.22);
  --shadow-inset:   inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

/* ---------- 2. RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html:focus-within { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}
main { flex: 1 0 auto; }

img, picture, svg { display: block; max-width: 100%; }
img { height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }

::selection { background: var(--color-accent); color: #fff; }

/* ---------- 3. КАСТОМНЫЙ СКРОЛЛБАР ---------- */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-2));
  border-radius: 999px;
  border: 3px solid var(--color-bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-accent-3); }
* { scrollbar-color: var(--color-accent) var(--color-bg); scrollbar-width: thin; }

/* ---------- 4. :focus-visible ---------- */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 5. ТИПОГРАФИКА ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
h1 { font-size: clamp(2.1rem, 5.4vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 700; }
p { color: var(--color-text-muted); }
strong { color: var(--color-text); font-weight: 600; }

.gradient-text {
  background: linear-gradient(135deg, var(--color-accent-3) 0%, var(--color-accent) 50%, var(--color-accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.eyebrow::before {
  content: '';
  width: 22px; height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* ---------- 6. LAYOUT ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.section { padding: clamp(56px, 9vw, 110px) 0; position: relative; }
.section-head { max-width: 720px; margin-bottom: clamp(36px, 5vw, 56px); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow::before { display: none; }
.section-head p { margin-top: 16px; font-size: 1.05rem; }

.bg-alt { background: var(--color-bg-alt); }

/* ---------- 7. КНОПКИ ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  border: 1.5px solid transparent;
  white-space: nowrap;
  text-align: center;
}
.btn .icon { width: 18px; height: 18px; }
.btn-primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); }
.btn-soft {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}
.btn-soft:hover { background: var(--color-accent); color: #fff; transform: translateY(-2px); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 30px; font-size: 1rem; }

/* ---------- 8. БЕЙДЖИ ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border: 1px solid rgba(249, 115, 22, 0.25);
}
.badge .icon { width: 14px; height: 14px; }
.badge-steel {
  background: rgba(148, 163, 184, 0.12);
  color: var(--color-steel);
  border-color: rgba(148, 163, 184, 0.25);
}
.badge-success { background: rgba(47, 191, 113, 0.14); color: var(--color-success); border-color: rgba(47, 191, 113, 0.3); }
.badge-dot { position: relative; padding-left: 22px; }
.badge-dot::before {
  content: ''; position: absolute; left: 8px; top: 50%;
  transform: translateY(-50%);
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 0 var(--color-accent-glow);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 var(--color-accent-glow); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ---------- 9. КАРТОЧКИ ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card), var(--shadow-inset);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.card-hover:hover {
  transform: translateY(-4px);
  border-color: rgba(249, 115, 22, 0.35);
  box-shadow: var(--shadow-card-2), var(--shadow-inset);
}

.icon-bubble {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  margin-bottom: 18px;
}
.icon-bubble .icon { width: 26px; height: 26px; }
.icon-bubble.steel { background: rgba(148, 163, 184, 0.14); color: var(--color-steel); }

/* ---------- 10. HEADER / NAV ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-steel) 0%, var(--color-steel-dark) 100%);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  flex-shrink: 0;
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255,255,255,0.2);
  overflow: hidden;
}
.brand-logo img { width: 100%; height: 100%; object-fit: cover; }
.brand-logo .icon { width: 22px; height: 22px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; letter-spacing: -0.01em; }
.brand-sub  { font-size: 0.66rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--color-text-muted); font-weight: 600; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-link:hover { color: var(--color-text); background: var(--color-surface); }
.nav-link.active { color: var(--color-accent); background: var(--color-accent-soft); }

.header-actions { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
}
.theme-toggle:hover { color: var(--color-accent); border-color: var(--color-accent); transform: rotate(15deg); }
.theme-toggle .icon { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.burger {
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  align-items: center; justify-content: center;
  color: var(--color-text);
}
.burger .icon { width: 22px; height: 22px; }
.burger .icon-x { display: none; }
.burger[aria-expanded="true"] .icon-menu { display: none; }
.burger[aria-expanded="true"] .icon-x { display: block; }

/* ---------- 11. MOBILE NAV ---------- */
.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 auto 0;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: 16px var(--gutter) 24px;
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 99;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
}
.mobile-nav.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-nav .nav-link {
  display: block;
  padding: 14px 16px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav .nav-link:last-child { border-bottom: none; }
.mobile-nav .btn { margin-top: 14px; }

/* ---------- 12. HERO ---------- */
.hero {
  position: relative;
  padding: clamp(40px, 7vw, 80px) 0 clamp(48px, 8vw, 90px);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.hero-copy { max-width: 600px; }
.hero h1 { margin: 18px 0 18px; }
.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--color-text-muted);
  max-width: 540px;
  margin-bottom: 28px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 32px; }

.triggers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.trigger {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), transform var(--transition);
}
.trigger:hover { border-color: rgba(249, 115, 22, 0.35); transform: translateY(-2px); }
.trigger-ic {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
}
.trigger-ic .icon { width: 20px; height: 20px; }
.trigger-text { font-family: var(--font-display); font-size: 0.88rem; font-weight: 600; line-height: 1.25; }

/* ===== ИНТЕРАКТИВНЫЙ МАНГАЛ (дашборд) ===== */
.dashboard {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 22px;
  box-shadow: var(--shadow-card-2), var(--shadow-inset);
}
.dashboard-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px;
  gap: 10px;
}
.dashboard-title {
  font-family: var(--font-display);
  font-weight: 700; font-size: 0.95rem;
  display: flex; align-items: center; gap: 8px;
}
.dashboard-title .icon { width: 18px; height: 18px; color: var(--color-accent); }
.dashboard-status {
  font-size: 0.75rem;
  color: var(--color-success);
  display: flex; align-items: center; gap: 6px;
  font-weight: 600;
}
.dashboard-status::before {
  content:''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-success); animation: pulse-dot 2s infinite;
}

/* Мангал — CSS-нарисованный */
.mangal-stage {
  position: relative;
  height: 200px;
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.15) 100%);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-bottom: 16px;
}
.mangal-body {
  position: absolute;
  left: 50%; top: 52%;
  transform: translate(-50%, -50%);
  width: 78%; height: 92px;
  background: linear-gradient(180deg, #cbd5e1 0%, #94a3b8 40%, #64748b 100%);
  border-radius: 8px 8px 14px 14px;
  box-shadow: inset 0 2px 4px rgba(255,255,255,0.35), inset 0 -8px 14px rgba(0,0,0,0.35), 0 8px 20px rgba(0,0,0,0.4);
  transition: background var(--transition-slow);
}
.mangal-body.heatproof {
  background: linear-gradient(180deg, #475569 0%, #334155 40%, #1e293b 100%);
}
.mangal-body::before {
  /* верхняя кромка */
  content: ''; position: absolute; left: -6px; right: -6px; top: -6px;
  height: 10px; border-radius: 6px;
  background: linear-gradient(180deg, #e2e8f0, #94a3b8);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.5);
}
.mangal-body.heatproof::before { background: linear-gradient(180deg, #64748b, #334155); }
.mangal-coals {
  position: absolute;
  left: 8%; right: 8%; top: 50%; bottom: 14%;
  border-radius: 4px;
  background: #1a1a1a;
  overflow: hidden;
}
.ember {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent), 0 0 14px var(--color-accent-glow);
  animation: ember-blink 1.6s ease-in-out infinite;
}
.ember:nth-child(1){ left: 12%; top: 30%; animation-delay: 0s; }
.ember:nth-child(2){ left: 28%; top: 55%; animation-delay: .3s; }
.ember:nth-child(3){ left: 44%; top: 25%; animation-delay: .6s; }
.ember:nth-child(4){ left: 60%; top: 60%; animation-delay: .2s; }
.ember:nth-child(5){ left: 76%; top: 35%; animation-delay: .5s; }
.ember:nth-child(6){ left: 88%; top: 55%; animation-delay: .8s; }
.ember:nth-child(7){ left: 20%; top: 70%; animation-delay: .4s; }
.ember:nth-child(8){ left: 52%; top: 45%; animation-delay: .7s; }
@keyframes ember-blink {
  0%, 100% { opacity: .55; transform: scale(.85); }
  50% { opacity: 1; transform: scale(1.1); }
}
.mangal-legs::before, .mangal-legs::after {
  content: ''; position: absolute; bottom: 0;
  width: 8px; height: 36px;
  background: linear-gradient(180deg, #64748b, #334155);
  border-radius: 0 0 3px 3px;
}
.mangal-legs::before { left: 14%; }
.mangal-legs::after  { right: 14%; }

.mangal-smoke {
  position: absolute;
  left: 50%; top: 8%;
  transform: translateX(-50%);
  width: 60px; height: 60px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-slow);
}
.mangal-smoke.on { opacity: .6; }
.mangal-smoke span {
  position: absolute; bottom: 0; left: 50%;
  width: 14px; height: 14px; border-radius: 50%;
  background: rgba(148,163,184,0.5);
  animation: smoke-rise 3s linear infinite;
}
.mangal-smoke span:nth-child(2){ animation-delay: .8s; }
.mangal-smoke span:nth-child(3){ animation-delay: 1.6s; }
@keyframes smoke-rise {
  0%   { transform: translate(-50%, 0) scale(.6); opacity: .7; }
  100% { transform: translate(-50%, -70px) scale(1.8); opacity: 0; }
}

/* Слайдер температуры */
.control { margin-bottom: 14px; }
.control-label {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-display); font-weight: 600; font-size: 0.82rem;
  margin-bottom: 8px;
  color: var(--color-text-muted);
}
.control-value { color: var(--color-accent); font-weight: 700; }
.slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, #fbbf24 0%, var(--color-accent) 50%, var(--color-accent-2) 100%);
  outline: none;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--color-accent);
  cursor: grab;
  box-shadow: 0 4px 12px rgba(249,115,22,.45);
  transition: transform var(--transition);
}
.slider::-webkit-slider-thumb:hover { transform: scale(1.12); }
.slider::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.05); }
.slider::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--color-accent);
  cursor: grab;
}

/* Переключатели */
.toggle-group {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  background: var(--color-bg-alt);
  padding: 4px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
}
.toggle-opt {
  padding: 9px 10px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display); font-weight: 700; font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
  transition: background var(--transition), color var(--transition);
}
.toggle-opt.active {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: #fff;
  box-shadow: var(--shadow-accent);
}

.btn-group {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
}
.thickness-btn {
  padding: 10px 6px;
  border-radius: var(--radius-md);
  font-family: var(--font-display); font-weight: 700; font-size: 0.85rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.thickness-btn.active {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.lifespan {
  margin-top: 10px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  background: var(--color-accent-soft);
  border: 1px dashed rgba(249,115,22,.35);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
}
.lifespan b { color: var(--color-accent); font-family: var(--font-display); font-size: 1rem; }

.warranty-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-top: 4px;
}
.warranty-row .icon { width: 20px; height: 20px; color: var(--color-success); flex-shrink: 0; }
.warranty-row .w-text { font-size: 0.85rem; font-weight: 600; }
.tooltip {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  font-size: 0.7rem; font-weight: 700;
  cursor: help;
  flex-shrink: 0;
}
.tooltip:hover { color: var(--color-accent); border-color: var(--color-accent); }
.tooltip-content {
  position: absolute;
  bottom: calc(100% + 8px); right: 0;
  width: 240px;
  padding: 12px 14px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: 0.78rem; font-weight: 400;
  color: var(--color-text-muted);
  box-shadow: var(--shadow-card-2);
  opacity: 0; visibility: hidden; transform: translateY(4px);
  transition: all var(--transition);
  z-index: 10;
  text-align: left;
  line-height: 1.5;
}
.tooltip:hover .tooltip-content,
.tooltip:focus-within .tooltip-content { opacity: 1; visibility: visible; transform: translateY(0); }

/* Парящие бейджи */
.float-badge {
  position: absolute;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  font-family: var(--font-display); font-weight: 700; font-size: 0.72rem;
  animation: float-y 4s ease-in-out infinite;
}
.float-badge .icon { width: 14px; height: 14px; color: var(--color-accent); }
.float-badge.tl { top: 12px; left: 12px; }
.float-badge.br { bottom: 12px; right: 12px; animation-delay: 1.5s; }
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* Второй виджет — коптильня (компактный) */
.dashboard-mini {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  margin-top: 14px;
}
.mini-widget {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px;
}
.mini-widget h4 {
  font-family: var(--font-display); font-weight: 700; font-size: 0.82rem;
  margin-bottom: 8px; display: flex; align-items: center; gap: 6px;
}
.mini-widget h4 .icon { width: 15px; height: 15px; color: var(--color-accent); }
.mini-widget .smoke-stage {
  height: 56px; border-radius: 8px;
  background: linear-gradient(180deg, #1c2128, #0d1117);
  position: relative; overflow: hidden;
  margin-bottom: 8px;
  border: 1px solid var(--color-border);
}
.smoke-puff {
  position: absolute; left: 50%; bottom: 6px;
  width: 10px; height: 10px; border-radius: 50%;
  transform: translateX(-50%);
  animation: smoke-rise 2.5s linear infinite;
}
.smoke-puff.hot  { background: rgba(245, 158, 11, 0.6); box-shadow: 0 0 12px rgba(245,158,11,.5); }
.smoke-puff.cold { background: rgba(148, 163, 184, 0.6); box-shadow: 0 0 12px rgba(148,163,184,.5); }
.mini-meta { font-size: 0.75rem; color: var(--color-text-muted); display: flex; justify-content: space-between; }

/* ---------- 13. STATS BAR ---------- */
.stats-bar {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: clamp(28px, 4vw, 44px) 0;
}
.stat {
  text-align: center;
  padding: 8px 16px;
  border-right: 1px solid var(--color-border);
}
.stat:last-child { border-right: none; }
.stat-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1;
  background: linear-gradient(135deg, var(--color-accent-3), var(--color-accent-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}
.stat-label {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ---------- 14. ABOUT + SERVICES ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}
.about-copy p + p { margin-top: 16px; }
.about-accents { display: flex; flex-direction: column; gap: 18px; margin-top: 26px; }
.about-accent {
  display: flex; gap: 14px;
  padding: 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.about-accent .icon-bubble { margin-bottom: 0; width: 44px; height: 44px; }
.about-accent .icon-bubble .icon { width: 22px; height: 22px; }
.about-accent h4 { font-family: var(--font-display); font-weight: 700; font-size: 1rem; margin-bottom: 4px; }
.about-accent p { font-size: 0.9rem; line-height: 1.5; }

.slogan {
  margin-top: 32px;
  padding: 22px 26px;
  background: var(--color-accent-soft);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  overflow: hidden;
}
.service-card::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 100% 0%, var(--color-accent-soft), transparent 60%);
  opacity: 0; transition: opacity var(--transition);
  pointer-events: none;
}
.service-card:hover { transform: translateY(-6px); border-color: rgba(249,115,22,.4); box-shadow: var(--shadow-card-2); }
.service-card:hover::after { opacity: 1; }
.service-card h3 { margin-bottom: 10px; }
.service-card p { font-size: 0.94rem; }
.service-card .service-num {
  position: absolute; top: 22px; right: 24px;
  font-family: var(--font-display); font-weight: 800; font-size: 0.85rem;
  color: var(--color-text-dim); letter-spacing: 0.1em;
}
.service-card .service-features {
  margin-top: 18px; display: flex; flex-direction: column; gap: 8px;
}
.service-feature {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.85rem; color: var(--color-text-muted);
}
.service-feature .icon { width: 16px; height: 16px; color: var(--color-accent); flex-shrink: 0; }

/* ---------- 15. MATERIALS / АНАТОМИЯ МАНГАЛА ---------- */
.anatomy {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}
.anatomy-stage {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-card-2), var(--shadow-inset);
  overflow: hidden;
}
.anatomy-svg { width: 100%; height: 100%; display: block; }
.anatomy-part {
  cursor: pointer;
  transition: filter var(--transition), opacity var(--transition);
}
.anatomy-part .part-shape {
  fill: var(--color-steel-dark);
  stroke: var(--color-steel);
  stroke-width: 1.5;
  transition: fill var(--transition), stroke var(--transition), filter var(--transition);
}
.anatomy-part:hover .part-shape,
.anatomy-part.active .part-shape {
  fill: var(--color-accent);
  stroke: var(--color-accent-3);
  filter: drop-shadow(0 0 8px var(--color-accent-glow));
}
.anatomy-part .part-label {
  fill: var(--color-text-muted);
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  text-anchor: middle;
  pointer-events: none;
  transition: fill var(--transition);
}
.anatomy-part:hover .part-label,
.anatomy-part.active .part-label { fill: var(--color-accent); }

.anatomy-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px;
  min-height: 280px;
  box-shadow: var(--shadow-card);
}
.anatomy-panel .ap-ic {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft); color: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.anatomy-panel .ap-ic .icon { width: 24px; height: 24px; }
.anatomy-panel h3 { margin-bottom: 8px; }
.anatomy-panel .ap-desc { font-size: 0.95rem; margin-bottom: 18px; }
.anatomy-panel .ap-feats { display: flex; flex-direction: column; gap: 10px; }
.ap-feat {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 12px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
}
.ap-feat .icon { width: 16px; height: 16px; color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }
.anatomy-dots {
  display: flex; gap: 6px; justify-content: center;
  margin-top: 18px;
}
.anatomy-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-border-strong);
  transition: background var(--transition), transform var(--transition);
}
.anatomy-dot.active { background: var(--color-accent); transform: scale(1.3); }

/* ---------- 16. PROCESS ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}
.process-grid::before {
  content: ''; position: absolute;
  top: 32px; left: 12.5%; right: 12.5%; height: 2px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
  opacity: 0.3;
  z-index: 0;
}
.process-step {
  position: relative;
  text-align: center;
  padding: 0 8px;
  z-index: 1;
}
.process-num {
  width: 64px; height: 64px; margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 800; font-size: 1.3rem;
  color: var(--color-accent);
  box-shadow: 0 0 0 6px var(--color-bg);
  position: relative;
}
.process-num .icon { width: 26px; height: 26px; }
.process-step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.process-step p { font-size: 0.88rem; }

/* ---------- 17. PROJECTS ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  display: flex; flex-direction: column;
  text-align: left;
  width: 100%;
  color: inherit;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(249,115,22,.4);
  box-shadow: var(--shadow-card-2);
}
.project-media {
  position: relative;
  width: 100%;
  aspect-ratio: 672 / 384;
  overflow: hidden;
  background: var(--color-bg-alt);
}
.project-media img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.12);
  transition: transform var(--transition-slow);
}
.project-card:hover .project-media img { transform: scale(1); }
.project-placeholder {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--ph-from, #1c2128) 0%, var(--ph-to, #0d1117) 100%);
}
.project-placeholder::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 16px 16px;
  opacity: 0.6;
}
.project-placeholder .ph-icon {
  width: 56px; height: 56px;
  color: rgba(255,255,255,0.5);
  position: relative;
}
.project-placeholder .ph-icon .icon { width: 56px; height: 56px; }
.project-placeholder .ph-label {
  position: relative;
  font-family: var(--font-display);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.project-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.project-tag {
  font-size: 0.7rem; font-weight: 600;
  padding: 3px 9px; border-radius: var(--radius-pill);
  background: var(--color-accent-soft); color: var(--color-accent);
}
.project-tag.steel { background: rgba(148,163,184,0.14); color: var(--color-steel); }
.project-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.project-steel { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 12px; }
.project-cta {
  margin-top: auto;
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display); font-weight: 700; font-size: 0.85rem;
  color: var(--color-accent);
}
.project-cta .icon { width: 16px; height: 16px; transition: transform var(--transition); }
.project-card:hover .project-cta .icon { transform: translateX(4px); }

/* DIALOG */
dialog {
  border: none;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-text);
  padding: 0;
  max-width: 720px; width: calc(100% - 32px);
  max-height: calc(100vh - 48px);
  box-shadow: var(--shadow-card-2);
  overflow: hidden;
}
dialog::backdrop { background: rgba(0,0,0,0.7); backdrop-filter: blur(4px); }
dialog[open] { animation: dialog-in var(--transition-slow); }
@keyframes dialog-in {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.dialog-head {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.dialog-head img { width: 100%; height: 100%; object-fit: cover; }
.dialog-head .project-placeholder { position: absolute; inset: 0; }
.dialog-close {
  position: absolute; top: 14px; right: 14px;
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(0,0,0,0.55); color: #fff;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(6px);
  transition: background var(--transition), transform var(--transition);
}
.dialog-close:hover { background: var(--color-accent); transform: rotate(90deg); }
.dialog-close .icon { width: 18px; height: 18px; }
.dialog-body { padding: 26px 28px 28px; overflow-y: auto; max-height: calc(100vh - 220px - 32px); }
.dialog-body h3 { font-size: 1.4rem; margin-bottom: 8px; }
.dialog-body .d-steel { color: var(--color-text-muted); margin-bottom: 18px; font-size: 0.9rem; }
.dialog-section { margin-bottom: 20px; }
.dialog-section h4 {
  font-family: var(--font-display); font-weight: 700; font-size: 0.78rem;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent);
  margin-bottom: 10px;
}
.dialog-section p { font-size: 0.92rem; }
.dialog-section ul { display: flex; flex-direction: column; gap: 8px; }
.dialog-section li { display: flex; gap: 8px; font-size: 0.9rem; color: var(--color-text-muted); }
.dialog-section li .icon { width: 16px; height: 16px; color: var(--color-accent); flex-shrink: 0; margin-top: 3px; }
.dialog-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }

/* ---------- 18. ADVANTAGES ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.adv-card {
  padding: 26px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition), border-color var(--transition);
}
.adv-card:hover { transform: translateY(-4px); border-color: rgba(249,115,22,.35); }
.adv-card .icon-bubble { margin-bottom: 16px; }
.adv-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.adv-card p { font-size: 0.88rem; }

.adv-cta {
  grid-column: span 4;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-2) 100%);
  color: #fff;
  padding: 32px;
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-accent);
}
.adv-cta h3 { color: #fff; font-size: 1.3rem; margin-bottom: 6px; }
.adv-cta p { color: rgba(255,255,255,0.9); margin: 0; }
.adv-cta .btn { background: #fff; color: var(--color-accent-2); }
.adv-cta .btn:hover { background: var(--color-bg); }

/* ---------- 19. CONTACTS ---------- */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(28px, 4vw, 48px);
}
.contact-info { display: flex; flex-direction: column; gap: 14px; }
.info-card {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.info-card .icon-bubble { margin-bottom: 0; width: 44px; height: 44px; flex-shrink: 0; }
.info-card .icon-bubble .icon { width: 22px; height: 22px; }
.info-card h4 { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; margin-bottom: 2px; }
.info-card p { font-size: 0.88rem; line-height: 1.45; }

.privacy-note {
  margin-top: 6px;
  padding: 14px 16px;
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 0.82rem; color: var(--color-text-muted);
}
.privacy-note .icon { width: 18px; height: 18px; color: var(--color-steel); flex-shrink: 0; margin-top: 1px; }

/* Форма */
.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-family: var(--font-display); font-weight: 600; font-size: 0.82rem;
  margin-bottom: 6px; color: var(--color-text-muted);
}
.field label .req { color: var(--color-accent); }
.field input, .field textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 0.95rem;
  transition: border-color var(--transition), background var(--transition);
}
.field input::placeholder, .field textarea::placeholder { color: var(--color-text-dim); }
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--color-accent);
  background: var(--color-surface);
}
.field textarea { resize: vertical; min-height: 110px; }
.field-error input, .field-error textarea { border-color: var(--color-error); }

/* honeypot — скрыт от людей */
.hp {
  position: absolute !important;
  left: -9999px !important; top: -9999px !important;
  width: 1px; height: 1px; overflow: hidden;
  opacity: 0; pointer-events: none; tabindex: -1;
  aria-hidden: true;
}

/* согласие */
.consent {
  display: flex; align-items: flex-start; gap: 10px;
  margin-bottom: 18px;
  font-size: 0.82rem; color: var(--color-text-muted);
}
.consent input[type="checkbox"] {
  appearance: none; -webkit-appearance: none;
  width: 18px; height: 18px; flex-shrink: 0;
  border: 1.5px solid var(--color-border-strong);
  border-radius: 5px;
  background: var(--color-bg-alt);
  cursor: pointer; margin-top: 2px;
  position: relative;
  transition: background var(--transition), border-color var(--transition);
}
.consent input[type="checkbox"]:checked {
  background: var(--color-accent); border-color: var(--color-accent);
}
.consent input[type="checkbox"]:checked::after {
  content: ''; position: absolute;
  left: 5px; top: 1px; width: 5px; height: 10px;
  border: solid #fff; border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.consent a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }

.form-status {
  margin-top: 14px; padding: 12px 14px;
  border-radius: var(--radius-md);
  font-size: 0.88rem; font-weight: 600;
  display: none;
}
.form-status.show { display: block; }
.form-status.success { background: rgba(47,191,113,.12); color: var(--color-success); border: 1px solid rgba(47,191,113,.3); }
.form-status.error   { background: rgba(226,89,106,.12); color: var(--color-error);   border: 1px solid rgba(226,89,106,.3); }
.form-status.wait    { background: rgba(245,185,66,.12); color: var(--color-warn);    border: 1px solid rgba(245,185,66,.3); }
.form-status .icon { width: 18px; height: 18px; vertical-align: -3px; margin-right: 6px; }

/* ---------- 20. TOAST ---------- */
.toast-stack {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 200;
  display: flex; flex-direction: column; gap: 10px;
  pointer-events: none;
  max-width: calc(100vw - 48px);
}
.toast {
  pointer-events: auto;
  display: flex; align-items: center; gap: 10px;
  padding: 12px 18px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card-2);
  font-family: var(--font-display); font-weight: 600; font-size: 0.85rem;
  color: var(--color-text);
  transform: translateX(120%);
  opacity: 0;
  transition: transform var(--transition-slow), opacity var(--transition);
}
.toast.show { transform: translateX(0); opacity: 1; }
.toast .icon { width: 18px; height: 18px; color: var(--color-accent); flex-shrink: 0; }

/* ---------- 21. FOOTER ---------- */
.site-footer {
  flex-shrink: 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: clamp(40px, 6vw, 64px) 0 24px;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { font-size: 0.88rem; max-width: 320px; }
.footer-col h4 {
  font-family: var(--font-display); font-weight: 700; font-size: 0.78rem;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-text-muted);
  margin-bottom: 14px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col a {
  font-size: 0.88rem; color: var(--color-text-muted);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  flex-wrap: wrap;
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
  font-size: 0.82rem; color: var(--color-text-dim);
}
.footer-bottom a { color: var(--color-text-muted); }
.footer-bottom a:hover { color: var(--color-accent); }
.to-top {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-family: var(--font-display); font-weight: 600; font-size: 0.8rem;
  transition: all var(--transition);
}
.to-top:hover { color: var(--color-accent); border-color: var(--color-accent); transform: translateY(-2px); }
.to-top .icon { width: 16px; height: 16px; }

/* ---------- 22. ФОНОВЫЕ ПАТТЕРНЫ ---------- */
.bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--color-border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-border) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 70%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 70%);
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}
.hero-glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 65%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}
.hero-glow.tl { top: -200px; left: -150px; }
.hero-glow.br { bottom: -250px; right: -150px; opacity: 0.4; }
.section > .container { position: relative; z-index: 1; }

/* ---------- 23. SCROLL REVEAL ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }
.reveal[data-delay="5"] { transition-delay: 0.40s; }

/* ---------- 24. СКРЫТОЕ / УТИЛИТЫ ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; } .mt-4 { margin-top: 16px; } .mt-6 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; } .mb-4 { margin-bottom: 16px; } .mb-6 { margin-bottom: 24px; }

/* ---------- 25. АДАПТИВНОСТЬ ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .anatomy  { grid-template-columns: 1fr; }
  .anatomy-stage { aspect-ratio: 16 / 9; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .adv-grid { grid-template-columns: 1fr 1fr; }
  .adv-cta { grid-column: span 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .process-grid::before { display: none; }
}

@media (max-width: 860px) {
  .nav, .header-actions .btn { display: none; }
  .burger { display: inline-flex; }
  .about-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--color-border); padding-bottom: 20px; margin-bottom: 20px; }
  .contacts-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 28px 16px; }
  .dashboard-mini { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root { --header-h: 60px; }
  .services-grid, .projects-grid, .adv-grid { grid-template-columns: 1fr; }
  .adv-cta { grid-column: span 1; flex-direction: column; text-align: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .form-row { grid-template-columns: 1fr; }
  .triggers-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .toast-stack { left: 16px; right: 16px; bottom: 16px; }
  .toast { width: 100%; }
  .float-badge { display: none; }
  .dialog-head { height: 160px; }
  .dialog-body { padding: 20px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
}

@media (max-width: 400px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat { border-right: none !important; border-bottom: 1px solid var(--color-border); }
  .stat:last-child { border-bottom: none; }
  .card, .service-card, .contact-form { padding: 20px; }
  .hero h1 { font-size: 1.85rem; }
}