/* ==========================================================================
   АБ Транс — страницы услуг
   Реализация DESIGN.md. Ноль хардкод-hex вне :root, ноль зависимостей.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;700;800&family=Inter:wght@400;500;600&display=swap&subset=cyrillic,cyrillic-ext,latin');

/* --------------------------------------------------------------- Tokens */

:root {
  /* Backgrounds */
  --bg: #111110;
  --surface: #181817;
  --surface-alt: #f5f5f4;
  --surface-light: #ffffff;
  --surface-hover: #201f1d;
  --surface-light-hover: #fbfbfa;

  /* Borders */
  --border: rgba(255, 255, 255, .10);
  --border-hover: rgba(235, 113, 33, .45);
  --border-light: rgba(17, 17, 16, .10);
  --border-light-hover: rgba(235, 113, 33, .40);

  /* Text — на тёмном */
  --text: #ffffff;
  --text-secondary: rgba(255, 255, 255, .70);
  --text-tertiary: rgba(255, 255, 255, .45);

  /* Text — на светлом */
  --text-ink: #111110;
  --text-ink-secondary: rgba(17, 17, 16, .68);
  /* .45 давало 2.99:1 на --surface-alt — ниже нормы 4.5. .60 = 4.9:1 */
  --text-ink-tertiary: rgba(17, 17, 16, .60);

  /* Accent */
  --accent: #eb7121;
  --accent-hover: #ff8434;
  --accent-active: #cf5e14;
  --accent-soft: rgba(235, 113, 33, .12);
  /* Тёмный вариант бренд-оранжевого для ТЕКСТА на светлом фоне.
     Фирменный #eb7121 на #f5f5f4 даёт всего 2.78:1; этот — 5.4:1.
     На тёмном фоне используем обычный --accent (6.2:1). */
  --accent-ink: #a8480a;

  /* RGB */
  --bg-rgb: 17, 17, 16;
  --accent-rgb: 235, 113, 33;
  --white-rgb: 255, 255, 255;

  /* Semantic */
  --success: #3f9a5c;
  --error: #c8452f;
  --warning: #d8a021;

  /* Fonts */
  --font-display: 'Manrope', 'TildaSans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', 'TildaSans', 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --sp-1: .25rem;  --sp-2: .5rem;   --sp-3: .75rem;  --sp-4: 1rem;
  --sp-5: 1.5rem;  --sp-6: 2rem;    --sp-7: 3rem;    --sp-8: 4rem;
  --sp-9: 6rem;    --sp-10: 8rem;

  /* Elevation */
  --sh-subtle:   0 1px 2px rgba(var(--bg-rgb), .06), 0 2px 8px rgba(var(--bg-rgb), .04);
  --sh-elevated: 0 8px 28px -10px rgba(var(--bg-rgb), .18);
  --sh-signal:   0 6px 22px -6px rgba(var(--accent-rgb), .55);

  /* Непрозрачный стоп для CSS-масок: важна только альфа, не цвет */
  --mask-opaque: rgba(0, 0, 0, 1);

  /* Easing */
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-soft: cubic-bezier(.2, .8, .2, 1);

  --nav-h: 74px;
}

/* ----------------------------------------------------------------- Base */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + var(--sp-4));
  -webkit-text-size-adjust: 100%;
  /* clip, а не hidden: hidden на html/body делает элемент контейнером прокрутки
     и ломает position:sticky и якорную прокрутку в WebKit */
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.015em;
}
h1 { font-size: clamp(2.4rem, 5.2vw, 4.25rem); line-height: 1.06; letter-spacing: -.02em; }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.75rem); line-height: 1.14; }
h3 { font-size: clamp(1.05rem, 1.4vw, 1.3rem); line-height: 1.28; font-weight: 700; letter-spacing: -.005em; }

p { margin: 0 0 var(--sp-4); }
p:last-child { margin-bottom: 0; }

ul { margin: 0; padding: 0; list-style: none; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--sp-4);
  z-index: 200;
  padding: var(--sp-3) var(--sp-5);
  background: var(--accent);
  color: var(--text-ink);
  border-radius: 4px;
  font-weight: 600;
  text-decoration: none;
  transition: top .2s ease;
}
.skip-link:focus { top: var(--sp-4); }

/* ------------------------------------------------------------ Container */

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}
.container--narrow { max-width: 760px; }
.container--wide   { max-width: 1440px; }

.section       { padding-block: clamp(4rem, 9vw, 8rem); }
.section--tight{ padding-block: clamp(3rem, 6vw, 5rem); }
.section--light{ background: var(--surface-alt); color: var(--text-ink); }
.section--light h1, .section--light h2, .section--light h3 { color: var(--text-ink); }

.section__head { max-width: 760px; margin-bottom: var(--sp-7); }
.section__head p { margin-top: var(--sp-4); color: var(--text-secondary); font-size: 1.1rem; }
.section--light .section__head p { color: var(--text-ink-secondary); }

.lead { font-size: clamp(1.1rem, 1.5vw, 1.3rem); line-height: 1.6; }

/* --------------------------------------------------------------- Eyebrow */

.eyebrow {
  display: inline-block;
  margin-bottom: var(--sp-4);
  padding-left: .75rem;
  border-left: 2px solid var(--accent);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.section--light .eyebrow { color: var(--text-ink-tertiary); }

/* --------------------------------------------------------- Hazard stripe */

.hazard {
  height: 10px;
  background: repeating-linear-gradient(-45deg,
    var(--accent) 0 14px,
    transparent 14px 28px);
  opacity: .85;
}

/* --------------------------------------------------------------- Buttons */

.btn {
  --btn-h: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  min-height: var(--btn-h);
  padding: 0 1.9rem;
  border: 1px solid transparent;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .22s ease, border-color .22s ease,
              color .22s ease, transform .22s var(--ease-soft), box-shadow .22s ease;
}

/* Текст на оранжевом — тёмный, а не белый: белый даёт 3.04:1, тёмный 6.2:1.
   Заодно ближе к дорожной сигнальной разметке, чем к веб-кнопке. */
.btn--primary {
  background: var(--accent);
  color: var(--text-ink);
  box-shadow: 0 2px 0 0 var(--accent-active);
}
.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--sh-signal), 0 2px 0 0 var(--accent-active);
}
.btn--primary:active { background: var(--accent-active); transform: translateY(0); box-shadow: none; }

.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover  { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn--ghost:active { transform: translateY(0); background: var(--accent-soft); }

.btn--ghost-ink { background: transparent; color: var(--text-ink); border-color: var(--border-light); }
.btn--ghost-ink:hover  { border-color: var(--accent); color: var(--accent-ink); transform: translateY(-2px); }
.btn--ghost-ink:active { transform: translateY(0); background: var(--accent-soft); }

.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn[disabled], .btn[aria-disabled="true"] {
  opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; pointer-events: none;
}
.btn svg { flex: none; }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--sp-4); }

/* ----------------------------------------------------------------- Links */

.link {
  color: var(--accent-ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: rgba(var(--accent-rgb), .38);
  transition: color .2s ease, text-decoration-color .2s ease;
}
.link:hover  { color: var(--accent-hover); text-decoration-color: currentColor; }
.link:active { color: var(--accent-active); }
.link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

.link-tel {
  position: relative;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  transition: color .2s ease;
}
.link-tel:hover { color: var(--accent); }
.link-tel:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

/* ------------------------------------------------------------------- Nav */

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  padding-block: 1.15rem;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color .3s ease, border-color .3s ease,
              backdrop-filter .3s ease, padding .3s ease;
}
.nav--scrolled {
  background: rgba(var(--bg-rgb), .88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
  padding-block: .7rem;
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
}
.nav__logo { display: flex; align-items: center; gap: .7rem; text-decoration: none; flex: none; color: var(--text); }
.nav__logo img { width: 62px; height: auto; }
.nav__logo span {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: -.01em;
}
.nav__logo:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }

.nav__links { display: flex; gap: var(--sp-5); margin-left: auto; }
.nav__link {
  position: relative;
  display: inline-block;
  padding: .5rem 0;
  color: var(--text-secondary);
  font-size: .9375rem;
  text-decoration: none;
  transition: color .2s ease;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .28s var(--ease-soft);
}
.nav__link:hover { color: var(--text); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.nav__link[aria-current="page"] { color: var(--text); }
.nav__link:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 2px; }

.nav__phones { display: flex; flex-direction: column; gap: .1rem; font-size: .9375rem; line-height: 1.35; }

.nav__burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  margin-left: auto;
  padding: 0;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease;
}
.nav__burger:hover { border-color: var(--accent); color: var(--accent); }
.nav__burger:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.nav__drawer {
  display: none;
  flex-direction: column;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--border);
}
.nav__drawer[data-open="true"] { display: flex; }
.nav__drawer a {
  padding: .8rem 0;
  min-height: 44px;
  display: flex;
  align-items: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color .2s ease;
}
.nav__drawer a:hover { color: var(--accent); }
.nav__drawer a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ------------------------------------------------------------ Breadcrumb */

/* Хлебные крошки живут внутри тёмного героя */
.crumbs { margin-bottom: var(--sp-5); font-size: .875rem; color: var(--text-tertiary); }
.crumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem; margin: 0; padding: 0; list-style: none; }
.crumbs a { color: var(--text-secondary); text-decoration: none; transition: color .2s ease; }
.crumbs a:hover { color: var(--accent); }
.crumbs a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
.crumbs [aria-current="page"] { color: var(--text-tertiary); }
.crumbs li:not(:last-child)::after { content: '/'; margin-left: .45rem; color: var(--text-tertiary); opacity: .5; }

/* ------------------------------------------------------------------ Hero */

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero__media {
  position: absolute;
  inset: -12% 0 0;
  z-index: -2;
  width: 100%;
  height: 124%;
  object-fit: cover;
  transform: translate3d(0, 0, 0) scale(1.08);
  will-change: transform;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(100deg,
    rgba(var(--bg-rgb), .94) 0%,
    rgba(var(--bg-rgb), .82) 42%,
    rgba(var(--bg-rgb), .38) 100%);
}
.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--sp-7);
  align-items: center;
  min-height: 88svh;
  padding-block: calc(var(--nav-h) + var(--sp-8)) var(--sp-9);
}
.hero h1 { text-shadow: 0 0 60px rgba(var(--bg-rgb), .55); }
.hero h1 .accent { color: var(--accent); }
.hero__sub {
  max-width: 40rem;
  margin-top: var(--sp-5);
  color: var(--text-secondary);
}
.hero__chips { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-6); }
.hero__cta { margin-top: var(--sp-6); }

/* Line-mask reveal */
.reveal-line { display: block; overflow: hidden; }
.reveal-line > span {
  display: block;
  transform: translateY(110%);
  animation: lineUp .9s var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * .1s + .15s);
}
@keyframes lineUp { to { transform: translateY(0); } }

.hero-fade {
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp .7s var(--ease-out) forwards;
  animation-delay: calc(.45s + var(--i, 0) * .09s);
}
@keyframes fadeUp { to { opacity: 1; transform: none; } }

/* ------------------------------------------------------------------ Tags */

.tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .4rem .8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(var(--white-rgb), .04);
  color: var(--text-secondary);
  font-size: .8125rem;
  font-weight: 500;
  transition: border-color .2s ease, color .2s ease;
}
.tag:hover { border-color: var(--border-hover); color: var(--text); }
.tag--accent { border-color: rgba(var(--accent-rgb), .4); background: var(--accent-soft); color: var(--accent); }
.tag svg { flex: none; color: var(--accent); }

/* --------------------------------------------------------------- Marquee */

.marquee {
  overflow: hidden;
  white-space: nowrap;
  padding-block: var(--sp-5);
  background: var(--bg);
  border-block: 1px solid var(--border);
  -webkit-mask-image: linear-gradient(90deg, transparent, var(--mask-opaque) 8%, var(--mask-opaque) 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, var(--mask-opaque) 8%, var(--mask-opaque) 92%, transparent);
}
.marquee__track {
  display: inline-flex;
  gap: 2.5rem;
  will-change: transform;
  animation: slide 38s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 2.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
}
.marquee__item::after {
  content: '';
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
}
.marquee__item--muted { color: var(--text-tertiary); }

/* ----------------------------------------------------------------- Cards */

.card {
  position: relative;
  overflow: hidden;
  padding: var(--sp-6);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color .28s ease, background-color .28s ease, transform .28s var(--ease-soft);
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 50%),
    rgba(var(--accent-rgb), .16), transparent 62%);
  transition: opacity .3s ease;
}
.card:hover { background: var(--surface-hover); border-color: var(--border-hover); transform: translateY(-4px); }
.card:hover::before { opacity: 1; }
.card:focus-within { border-color: var(--accent); }
.card:focus-within::before { opacity: 1; }

.card > * { position: relative; }
.card h3 { margin-bottom: var(--sp-3); }
.card p { color: var(--text-secondary); font-size: 1rem; }

.card__num {
  display: block;
  margin-bottom: var(--sp-4);
  font-family: var(--font-display);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.card--light { background: var(--surface-light); border-color: var(--border-light); box-shadow: var(--sh-subtle); }
.card--light h3 { color: var(--text-ink); }
.card--light p  { color: var(--text-ink-secondary); }
.card--light:hover {
  background: var(--surface-light-hover);
  border-color: var(--border-light-hover);
  box-shadow: var(--sh-elevated);
}

.card--wide { grid-column: span 2; }

/* -------------------------------------------- Карточка услуги (хаб-страница) */

.svc { display: flex; flex-direction: column; padding: 0; }
.svc__media { position: relative; overflow: hidden; }
.svc__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform .5s var(--ease-soft);
}
.svc:hover .svc__media img { transform: scale(1.05); }
.svc__body { padding: var(--sp-6); }
.svc h3 { margin-bottom: var(--sp-3); }
.svc__link {
  color: var(--text);
  text-decoration: none;
  transition: color .2s ease;
}
.svc:hover .svc__link { color: var(--accent); }
/* растянутая ссылка: кликабельна вся карточка, но в DOM остаётся одна ссылка */
.svc__link::after { content: ''; position: absolute; inset: 0; z-index: 1; }
.svc__link:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.svc__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}
.svc__go {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-top: var(--sp-5);
  color: var(--accent);
  font-size: .9375rem;
  font-weight: 600;
}
.svc__go svg { transition: transform .28s var(--ease-soft); }
.svc:hover .svc__go svg { transform: translateX(4px); }

/* ---------------------------------------------------------------- Grids */

.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: minmax(180px, auto);
  gap: var(--sp-4);
}
.grid-3 {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.grid-2 {
  display: grid;
  gap: var(--sp-7);
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  align-items: start;
}

/* ------------------------------------------------------------ Spec table */

.spec { border-top: 1px solid var(--border-light); }
.spec__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--sp-4);
  align-items: baseline;
  padding: .95rem var(--sp-3);
  border-bottom: 1px dashed var(--border-light);
  transition: background-color .2s ease;
}
.spec__row:hover { background: var(--accent-soft); }
.spec__key { color: var(--text-ink-secondary); }
.spec__val {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-ink);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ---------------------------------------------------------------- Metric */

.metrics { display: grid; gap: var(--sp-5); grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.metric__val {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--accent-ink);
  font-variant-numeric: tabular-nums;
}
.metric__key { display: block; margin-top: var(--sp-3); color: var(--text-secondary); font-size: .95rem; }
.section--light .metric__key { color: var(--text-ink-secondary); }

/* ----------------------------------------------------------------- Steps */

.steps { display: grid; gap: var(--sp-5); grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.step { position: relative; padding-top: var(--sp-5); border-top: 2px solid var(--border-light); }
.step__num {
  display: block;
  margin-bottom: var(--sp-3);
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-ink);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.step h3 { margin-bottom: var(--sp-2); color: var(--text-ink); }
.step p  { color: var(--text-ink-secondary); font-size: 1rem; }

/* --------------------------------------------------------------- Gallery */

.gallery { display: grid; gap: var(--sp-4); grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.gallery figure { position: relative; margin: 0; overflow: hidden; border-radius: 6px; background: var(--surface); }
.gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .5s var(--ease-soft);
}
.gallery figure:hover img { transform: scale(1.05); }
.gallery figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: var(--sp-5) var(--sp-4) var(--sp-4);
  background: linear-gradient(transparent, rgba(var(--bg-rgb), .9));
  color: var(--text);
  font-size: .9375rem;
}

/* --------------------------------------------------------------- Accordion */

.acc { border-top: 1px solid var(--border-light); }
.acc__item { border-bottom: 1px solid var(--border-light); }
.acc__btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  width: 100%;
  min-height: 64px;
  padding: 1.35rem 0;
  background: none;
  border: 0;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-ink);
  text-align: left;
  cursor: pointer;
  transition: color .2s ease;
}
.acc__btn:hover { color: var(--accent-ink); }
.acc__btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.acc__btn[aria-expanded="true"] { color: var(--accent-ink); }
.acc__icon { flex: none; transition: transform .3s var(--ease-soft); color: var(--accent-ink); }
.acc__btn[aria-expanded="true"] .acc__icon { transform: rotate(45deg); }
/* Высоту ставит JS по фактическому контенту.
   Трюк grid-template-rows: 0fr → 1fr выглядит чище, но интерполяция fr
   в контейнере с неопределённой высотой залипает на нуле — панель не открывается.
   Это единственное место, где мы осознанно анимируем height (см. DESIGN.md §8). */
.acc__panel {
  height: 0;
  overflow: hidden;
  transition: height .34s var(--ease-soft);
}
.acc__panel p { padding-bottom: var(--sp-5); color: var(--text-ink-secondary); max-width: 68ch; }

/* ------------------------------------------------------------------- CTA */

.cta { position: relative; overflow: hidden; text-align: center; }
.cta h2 { margin-bottom: var(--sp-5); }
.cta p  { max-width: 52ch; margin-inline: auto; color: var(--text-secondary); }
.cta .btn-row { justify-content: center; margin-top: var(--sp-7); }
.cta__phones {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-6);
  margin-top: var(--sp-7);
  font-size: 1.35rem;
}

/* ---------------------------------------------------------------- Footer */

.footer { padding-block: var(--sp-8) var(--sp-7); background: var(--bg); border-top: 1px solid var(--border); }
.footer__grid { display: grid; gap: var(--sp-6); grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.footer h3 { margin-bottom: var(--sp-4); font-size: .8125rem; letter-spacing: .12em; text-transform: uppercase; color: var(--text-tertiary); font-weight: 600; font-family: var(--font-body); }
.footer li { margin-bottom: var(--sp-3); }
.footer a { color: var(--text-secondary); text-decoration: none; transition: color .2s ease; }
.footer a:hover { color: var(--accent); }
.footer a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  justify-content: space-between;
  margin-top: var(--sp-8);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--border);
  color: var(--text-tertiary);
  font-size: .875rem;
}

/* ---------------------------------------------------------- Mobile callbar */

.callbar { display: none; }

/* -------------------------------------------------------- Copy tooltip/spark */

.copied {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(4px);
  padding: .3rem .6rem;
  background: var(--accent);
  color: var(--text-ink);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: .75rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s var(--ease-out);
}
.copied[data-show="true"] { opacity: 1; transform: translateX(-50%) translateY(0); }

.spark {
  position: fixed;
  z-index: 150;
  width: 4px; height: 4px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  animation: spark .5s ease-out forwards;
}
@keyframes spark {
  to { transform: translate(var(--dx), var(--dy)) scale(0); opacity: 0; }
}

/* ---------------------------------------------------------- Scroll reveal */

/* Прячем только когда JS точно жив (класс ставит инлайн-скрипт в <head>).
   Без JS страница показывается целиком — контент важнее анимации. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
  transition-delay: calc(var(--i, 0) * .07s);
}
.js [data-reveal="h2"]   { transform: translateY(38px); }
.js [data-reveal="left"] { transform: translateX(-32px); }
.js [data-reveal].is-in  { opacity: 1; transform: none; }

/* ===================================================== Responsive =========== */

@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; min-height: 78svh; padding-block: calc(var(--nav-h) + var(--sp-7)) var(--sp-8); }
  .bento       { grid-template-columns: repeat(2, 1fr); }
  .card--wide  { grid-column: span 2; }
}

@media (max-width: 1180px) {
  .nav__phones { display: none; }
}

@media (max-width: 900px) {
  .nav__links  { display: none; }
  .nav__burger { display: inline-flex; }
  .nav__inner  { flex-wrap: wrap; }
  .nav__drawer { flex-basis: 100%; }
}

@media (max-width: 767px) {
  :root { --nav-h: 66px; }

  body { padding-bottom: 56px; }

  .bento      { grid-template-columns: 1fr; }
  .card--wide { grid-column: auto; }
  .grid-2     { gap: var(--sp-6); }
  .card       { padding: var(--sp-5); }

  .spec__row  { grid-template-columns: 1fr; gap: .2rem; }
  .spec__val  { justify-self: start; }

  .btn        { width: 100%; }
  .btn--inline{ width: auto; }
  .btn-row    { flex-direction: column; }

  .steps      { grid-template-columns: 1fr; }
  .cta__phones{ flex-direction: column; gap: var(--sp-4); }

  /* Липкая панель связи — главный конверсионный элемент на мобильном */
  .callbar {
    position: fixed;
    inset: auto 0 0;
    z-index: 90;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .callbar a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 56px;
    background: var(--bg);
    color: var(--text);
    font-weight: 600;
    font-size: .95rem;
    text-decoration: none;
  }
  .callbar a:first-child { background: var(--accent); color: var(--text-ink); }
  .callbar a:focus-visible { outline: 2px solid var(--accent); outline-offset: -4px; }
  .callbar svg { flex: none; }

  /* Тап-цели 44px: на мобильном инлайновые ссылки становятся полноценными целями */
  .footer li a,
  .footer__bottom a,
  .crumbs a,
  .crumbs [aria-current="page"],
  .cta__phones .link-tel {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }
  .footer li { margin-bottom: 0; }
  .nav__logo { min-height: 44px; }
}

/* Мобильные и тач: отключаем дорогое */
@media (hover: none), (max-width: 767px) {
  .hero__media  { transform: none !important; }
  .card::before { display: none; }
}

@media (max-width: 380px) {
  .hero__chips { gap: .4rem; }
  .nav__logo span { display: none; }
}

/* ================================================== Reduced motion ========= */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .js [data-reveal], [data-reveal], .hero-fade { opacity: 1 !important; transform: none !important; }
  .reveal-line > span       { transform: none !important; }
  .marquee__track           { animation: none !important; }
  .hero__media              { transform: none !important; }
}