/* ===== Главная: промо-блок «Кресло в ваших цветах» ===== */
.seat-promo {
  --sp-bg: var(--black, #0b0b0d);
  --sp-text: #fff;
  --sp-muted: rgba(255, 255, 255, .6);
  --sp-dim: rgba(255, 255, 255, .45);
  --sp-line: rgba(255, 255, 255, .1);
  --sp-display: "Panton Extra Black", "Panton", Arial, Helvetica, sans-serif;
  --sp-radius: 12px;

  position: relative;
  overflow: hidden;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  background-color: var(--sp-bg);
  background-image: url('/assets/img/seat-promo-bg.webp');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: var(--sp-text);
}
.seat-promo::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: linear-gradient(100deg, rgba(0, 0, 0, .78) 0%, rgba(0, 0, 0, .45) 55%, rgba(0, 0, 0, .12) 100%);
}
.seat-promo-inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 600px);
  align-items: center;
  gap: 40px;
  padding-top: 80px;
  padding-bottom: 80px;
}
.seat-promo--under-header .seat-promo-inner { padding-top: 120px; }

/* --- Текст --- */
.seat-promo-titles { display: grid; margin-top: 0; }
.seat-promo-title {
  grid-area: 1 / 1;
  margin: 0; max-width: 620px;
  font-family: var(--sp-display);
  font-size: clamp(26px, 3vw, 40px); line-height: 1.08;
  text-transform: uppercase; color: var(--sp-text);
  text-shadow: 0 6px 30px rgba(0, 0, 0, .55);
  opacity: 0; visibility: hidden;
  transition: opacity .35s ease, visibility 0s linear .35s;
}
.seat-promo-title.is-active { opacity: 1; visibility: visible; transition: opacity .35s ease, visibility 0s; }
.seat-promo-title .hl {
  display: inline-block; background: #fff; color: #000;
  padding: 3px 14px; border-radius: 5px;
  text-shadow: none;
}
.seat-promo-lead { margin: 24px 0 0; max-width: 440px; font-size: 17px; line-height: 1.6; color: var(--sp-muted); }

.seat-promo-models { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.seat-promo-model-btn {
  padding: 9px 18px;
  font: inherit; font-size: 14px; font-weight: 700; line-height: 1;
  color: var(--sp-muted);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 100px;
  cursor: pointer;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease;
}
.seat-promo-model-btn:hover { color: var(--sp-text); border-color: rgba(255, 255, 255, .5); transform: translateY(-1px); }
.seat-promo-model-btn.is-active { color: var(--sp-bg); background: var(--sp-text); border-color: var(--sp-text); }
.seat-promo-model-btn:focus-visible { outline: 2px solid var(--sp-text); outline-offset: 2px; }

.seat-promo-parts { list-style: none; margin: 36px 0 0; padding: 0; max-width: 440px; border-top: 1px solid var(--sp-line); }
.seat-promo-part {
  position: relative;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--sp-line);
}
.seat-promo-part-label { font-size: 15px; color: rgba(255, 255, 255, .7); }
.seat-promo-part-value { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 700; }
.seat-promo-dot { display: block; width: 16px; height: 16px; border-radius: 50%; box-shadow: 0 0 0 2px rgba(255, 255, 255, .15); }
.seat-promo-part-bar {
  position: absolute; left: 0; bottom: -1px; width: 100%; height: 1px;
  background: var(--sp-text); transform-origin: left center; transform: scaleX(0);
}

.seat-promo-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 36px; }
.seat-promo-cta { padding: 16px 28px; font-size: 16px; border-radius: var(--sp-radius); }
.seat-promo-cta i { transition: transform .2s ease; }
.seat-promo-cta:hover i { transform: translateX(4px); }
.seat-promo-ghost {
  padding: 16px 24px; font-size: 16px; border-radius: var(--sp-radius);
  background: transparent; border-color: rgba(255, 255, 255, .2); color: var(--sp-text);
}
.seat-promo-ghost:hover { border-color: rgba(255, 255, 255, .55); color: var(--sp-text); transform: translateY(-2px); }

.seat-promo-stats { display: flex; gap: 40px; margin-top: 40px; }
.seat-promo-stat-value { font-family: var(--sp-display); font-size: 26px; line-height: 1.15; color: var(--sp-text); }
.seat-promo-stat-label { font-size: 13px; color: var(--sp-dim); }

/* --- Сцена с креслом --- */
.seat-promo-stage {
  position: relative;
  width: 100%; max-width: 600px; aspect-ratio: 15 / 16;
  margin-left: auto;
  user-select: none;
  perspective: 1200px;
}
.seat-promo-glow {
  position: absolute; left: 50%; top: 46%;
  width: 73%; aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%; opacity: .35; filter: blur(90px);
  pointer-events: none;
}
.seat-promo-ring {
  position: absolute; left: 50%; top: 46%;
  width: 87%; aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, .06); border-radius: 50%;
  pointer-events: none;
}
.seat-promo-ring--inner { width: 63%; border-style: dashed; border-color: rgba(255, 255, 255, .07); }

.seat-promo-label { position: absolute; left: 8px; top: 8px; z-index: 3; }
.seat-promo-counter { font-size: 12px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: rgba(255, 255, 255, .4); }
.seat-promo-count { color: rgba(255, 255, 255, .85); }
.seat-promo-name-mask { height: 34px; margin-top: 4px; overflow: hidden; }
.seat-promo-name { font-family: var(--sp-display); font-size: 28px; line-height: 34px; text-transform: uppercase; }

.seat-promo-shadow {
  position: absolute; left: 20%; right: 20%; bottom: 12%;
  height: 34px; border-radius: 50%;
  background: rgba(0, 0, 0, .8); filter: blur(14px);
  pointer-events: none;
}
.seat-promo-chair {
  position: absolute; left: 5%; right: 5%; top: 5.3%;
  aspect-ratio: 1;
  will-change: transform;
}
.seat-promo-scene { position: absolute; inset: 0; }
.seat-promo-group { position: absolute; inset: 0; }
.seat-promo-layer {
  position: absolute; inset: 0;
  width: 100%; height: 100%; max-width: none;
  object-fit: contain;
  -webkit-user-drag: none;
}
.seat-promo-sheen-mask {
  position: absolute; inset: 0; overflow: hidden;
  pointer-events: none; mix-blend-mode: screen;
  -webkit-mask: var(--sp-mask) center / contain no-repeat;
  mask: var(--sp-mask) center / contain no-repeat;
}
.seat-promo-sheen {
  position: absolute; left: 0; right: 0; top: 0; height: 28%;
  background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, .35), transparent);
  opacity: 0; visibility: hidden;
}

/* --- Управление --- */
.seat-promo-controls { position: absolute; left: 8px; right: 8px; bottom: 8px; z-index: 3; display: flex; align-items: center; gap: 16px; }
.seat-promo-toggle {
  flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; padding: 0;
  border: 1px solid rgba(255, 255, 255, .2); border-radius: 50%;
  background: rgba(255, 255, 255, .05); color: var(--sp-text);
  font-size: 14px; cursor: pointer;
  transition: background .2s ease, border-color .2s ease;
}
.seat-promo-toggle:hover { background: rgba(255, 255, 255, .15); border-color: rgba(255, 255, 255, .4); }
.seat-promo-dots { display: flex; align-items: center; gap: 2px; }
.seat-promo-dot-btn {
  display: grid; place-items: center;
  width: 20px; height: 20px; padding: 0;
  border: 0; border-radius: 50%; background: none;
  cursor: pointer; opacity: .5;
}
.seat-promo-dot-btn::before { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--dot); }
.seat-promo-toggle:focus-visible,
.seat-promo-dot-btn:focus-visible { outline: 2px solid var(--sp-text); outline-offset: 2px; }
.seat-promo-progress { position: relative; flex: 1; height: 2px; border-radius: 2px; overflow: hidden; background: rgba(255, 255, 255, .1); }
.seat-promo-progress-bar { position: absolute; inset: 0; background: rgba(255, 255, 255, .8); transform-origin: left center; transform: scaleX(0); }

/* --- Адаптив --- */
@media (max-width: 1020px) {
  .seat-promo-inner { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-top: 56px; padding-bottom: 56px; }
  .seat-promo--under-header .seat-promo-inner { padding-top: 96px; }
  .seat-promo-lead, .seat-promo-parts { max-width: none; }
  .seat-promo-stage { margin: 0 auto; }
}
@media (max-width: 560px) {
  .seat-promo-stats { gap: 16px; justify-content: space-between; }
  .seat-promo-stat-value { font-size: 22px; }
  .seat-promo-stat-label { font-size: 12px; white-space: nowrap; }
  .seat-promo-stage { aspect-ratio: 1 / 1.12; }
  .seat-promo-chair { left: 11%; right: 11%; top: 17%; }
  .seat-promo-shadow { bottom: 13%; }
  .seat-promo-actions .btn { flex: 1 1 100%; }
  .seat-promo-name { font-size: 22px; }
  .seat-promo-controls { gap: 10px; }
}

/* ===== Главная: прозрачный хедер поверх промо-блока ===== */
.site-header--over {
  position: fixed; left: 0; right: 0; top: 0;
  background: transparent; border-bottom-color: transparent;
  transition: background-color .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.logo .logo-img--light { display: none; }
.site-header--over:not(.is-solid) .logo .logo-img--dark { display: none; }
.site-header--over:not(.is-solid) .logo .logo-img--light { display: block; }
.site-header--over:not(.is-solid) .header-phone,
.site-header--over:not(.is-solid) .header-phone:hover { color: #fff; }
.site-header--over:not(.is-solid) .header-phone::after { background: #fff; }
.site-header--over:not(.is-solid) .header-phone i { color: rgba(255, 255, 255, .75); }
.site-header--over:not(.is-solid) .header-phone:hover i { color: #fff; }
.site-header--over:not(.is-solid) .icon-btn { color: #fff; background: transparent; border-color: rgba(255, 255, 255, .5); }
.site-header--over:not(.is-solid) .icon-btn:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }
.site-header--over:not(.is-solid) .icon-btn--cart .icon-badge { background: #fff; color: var(--black); border-color: transparent; }
.site-header--over.is-solid { background: #fff; border-bottom-color: var(--border); box-shadow: 0 1px 12px rgba(0, 0, 0, .06); }
.site-main--over { padding-top: 0; }

/* Белый разделитель, «залезающий» на блок снизу */
.seat-promo-divider {
  display: block; position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
  width: 100%; height: clamp(16px, 2.4vw, 44px);
  pointer-events: none;
}