/* Premium layer — additive, does not replace existing tokens */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 200;
  background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px;
}
.skip-link:focus { top: 12px; }
.hp { position: absolute !important; left: -9999px; height: 0; width: 0; overflow: hidden; }

.hero-cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.hero-visual {
  position: relative; border-radius: 22px; overflow: hidden; min-height: 220px;
  box-shadow: var(--shadow-md);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.hero-visual__cap {
  position: absolute; left: 14px; right: 14px; bottom: 14px;
  color: #fff; font-size: 13px; font-weight: 600;
  text-shadow: 0 1px 8px rgba(0,0,0,.45);
}

/* ── 3D install ── */
.install3d { background: #141820; color: #f4f1ea; }
.install3d .sect-head__title, .install3d h2, .install3d h3 { color: #f4f1ea; }
.install3d .sect-head__desc { color: #b8b3a8; }
.install3d__layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 32px; align-items: stretch; }
@media (max-width: 960px) { .install3d__layout { grid-template-columns: 1fr; } }
.install3d__viewport {
  position: relative; border-radius: 24px; overflow: hidden;
  background: linear-gradient(180deg, #1c222c, #0f1218);
  min-height: 460px;
}
.install3d__film { position: relative; height: 460px; background: #0d1118; }
.install3d__video, .install3d__poster {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.install3d__video { z-index: 1; opacity: 0; transition: opacity .35s ease; }
.install3d.is-video .install3d__video { opacity: 1; }
.install3d.is-video .room3d { display: none; }
.install3d__progress { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: #2a303c; z-index: 3; }
.install3d__progress i { display: block; height: 100%; width: 10%; background: var(--accent); transition: width .4s ease; }
.room3d { height: 460px; perspective: 1100px; }
.room3d__scene {
  position: relative; width: 78%; height: 78%; margin: 11% auto 0;
  transform-style: preserve-3d;
  transform: rotateX(12deg) rotateY(-22deg);
  transition: transform .6s ease;
}
.wall, .ceiling, .ceiling > * { position: absolute; transform-style: preserve-3d; }
.wall--back {
  inset: 0; background: linear-gradient(180deg, #d8cfc4, #cbbfb0);
  transform: translateZ(-180px);
  box-shadow: inset 0 0 80px rgba(80,50,20,.12);
}
.wall--left {
  width: 180px; height: 100%; left: 0; top: 0;
  background: linear-gradient(90deg, #c2b6a8, #d4c9bb);
  transform-origin: left; transform: rotateY(90deg);
}
.wall--right {
  width: 180px; height: 100%; right: 0; top: 0;
  background: linear-gradient(270deg, #b7ab9d, #d0c4b6);
  transform-origin: right; transform: rotateY(-90deg);
}
.wall--floor {
  left: 0; right: 0; bottom: 0; height: 180px;
  background:
    repeating-linear-gradient(90deg, #8a6a48 0 18px, #7a5c3d 18px 36px);
  transform-origin: bottom; transform: rotateX(90deg);
  opacity: .9;
}
.ceiling { left: 0; right: 0; top: 0; height: 180px; transform-origin: top; transform: rotateX(-90deg); }
.ceiling__base { inset: 0; background: #e8e0d4; }
.ceiling__laser, .ceiling__profile, .ceiling__wires, .ceiling__spots,
.ceiling__sheet, .ceiling__led, .ceiling__decor { opacity: 0; transition: opacity .45s ease, transform .6s ease; }
.ceiling__laser {
  left: 0; right: 0; top: 70%; height: 2px; background: #3dff8a;
  box-shadow: 0 0 12px #3dff8a;
}
.ceiling__profile {
  left: 6%; right: 6%; top: 8%; height: 10px; background: #4a4f5a; border-radius: 2px;
}
.ceiling__wires {
  left: 20%; right: 20%; top: 30%; height: 40%;
  background: repeating-linear-gradient(90deg, transparent 0 40px, #222 40px 42px);
}
.ceiling__spots { inset: 18% 16%; display: grid; grid-template-columns: 1fr 1fr; gap: 18%; }
.ceiling__spots span {
  width: 16px; height: 16px; border-radius: 50%; background: #f4e2a8;
  box-shadow: 0 0 18px 6px rgba(255, 220, 140, .55); justify-self: center;
}
.ceiling__sheet {
  inset: 10% 8% 8%; background: #f7f4ee; border-radius: 2px;
  transform: scaleY(.2); transform-origin: top;
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
}
.ceiling__led {
  left: 6%; right: 6%; bottom: 8%; height: 6px; border-radius: 6px;
  background: linear-gradient(90deg, #8ec5ff, #fff4c8, #ff9ec8);
}
.ceiling__decor {
  left: 12%; right: 12%; bottom: 14%; height: 8px; background: #c9a24a; opacity: 0;
}
.room-furniture { position: absolute; left: 18%; bottom: 8%; width: 54%; height: 28%; transform: translateZ(20px); opacity: .35; }
.sofa { position: absolute; inset: 30% 0 0; background: #5c4a3a; border-radius: 8px 8px 0 0; }
.plant { position: absolute; right: -18%; bottom: 0; width: 18px; height: 70%; background: #2f6b45; border-radius: 20px 20px 4px 4px; }

.room3d[data-step="1"] .room-furniture { opacity: .15; }
.room3d[data-step="2"] .ceiling__laser { opacity: 1; }
.room3d[data-step="3"] .ceiling__profile, .room3d[data-step="3"] .ceiling__laser { opacity: 1; }
.room3d[data-step="4"] .ceiling__profile, .room3d[data-step="4"] .ceiling__wires { opacity: 1; }
.room3d[data-step="5"] .ceiling__profile, .room3d[data-step="5"] .ceiling__spots { opacity: 1; }
.room3d[data-step="6"] .ceiling__profile, .room3d[data-step="6"] .ceiling__sheet { opacity: 1; }
.room3d[data-step="7"] .ceiling__sheet { opacity: 1; transform: scaleY(1); }
.room3d[data-step="7"] .ceiling__profile, .room3d[data-step="7"] .ceiling__spots { opacity: .4; }
.room3d[data-step="8"] .ceiling__sheet { opacity: 1; transform: scaleY(1); }
.room3d[data-step="8"] .ceiling__led, .room3d[data-step="8"] .ceiling__decor { opacity: 1; }
.room3d[data-step="9"] .ceiling__sheet { opacity: 1; transform: scaleY(1); background: #fffaf0; }
.room3d[data-step="9"] .ceiling__spots, .room3d[data-step="9"] .ceiling__led { opacity: 1; }
.room3d[data-step="9"] .room-furniture { opacity: .85; }
.room3d[data-step="9"] .wall--back { background: linear-gradient(180deg, #efe7db, #e4d8c8); }

.install3d__fallback { display: none; margin: 0; }
.install3d__fallback img { width: 100%; height: 460px; object-fit: cover; }
.install3d__fallback figcaption { padding: 12px 16px; font-size: 13px; color: #b8b3a8; }
.install3d__panel { display: flex; flex-direction: column; gap: 18px; }
.install3d__steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.install3d__steps li {
  display: flex; gap: 8px; align-items: center; padding: 8px 10px; border-radius: 10px;
  font-size: 13px; color: #b8b3a8; cursor: pointer; border: 1px solid transparent;
}
.install3d__steps li b { color: var(--accent); font-size: 11px; letter-spacing: .06em; }
.install3d__steps li.is-active { background: rgba(255,255,255,.06); color: #fff; border-color: rgba(201,162,74,.35); }
.install3d__copy h3 { font-size: 22px; margin-bottom: 8px; }
.install3d__copy p { color: #c9c3b8; font-size: 15px; line-height: 1.55; margin: 0; }
.install3d__nav { display: flex; gap: 10px; flex-wrap: wrap; }
.install3d .btn-ghost { border-color: #3a414e; color: #f4f1ea; }
.install3d .btn-ghost:hover { background: rgba(255,255,255,.06); }

@media (max-width: 720px) {
  .install3d__film, .room3d { height: 340px; }
  .room3d__scene { width: 86%; height: 82%; transform: rotateX(10deg) rotateY(-12deg); }
  .install3d__steps { grid-template-columns: 1fr; max-height: 220px; overflow: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .install3d__video { display: none !important; }
  .room3d { display: none; }
  .room3d__scene, .ceiling__sheet, .install3d__progress i, .install3d__video { transition: none; }
}

/* ── Quiz ── */
.quiz-sec { background: var(--bg-soft); }
.quiz-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 28px;
  padding: 40px; box-shadow: var(--shadow-sm); max-width: 840px; margin: 0 auto;
}
.quiz-card h2 { font-size: clamp(28px, 3vw, 40px); margin: 10px 0 8px; }
.quiz-card h2 em { font-style: normal; color: var(--accent); }
.quiz-progress { height: 4px; background: var(--line); border-radius: 4px; margin-top: 22px; }
.quiz-progress i { display: block; height: 100%; width: 16%; background: var(--accent); transition: width .3s; }
.quiz-step { display: none; padding-top: 28px; }
.quiz-step.is-active { display: block; }
.quiz-q { font-size: 22px; font-weight: 800; margin-bottom: 16px; }
.quiz-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 600px) { .quiz-opts { grid-template-columns: 1fr; } .quiz-card { padding: 24px 18px; } }
.quiz-opts button {
  text-align: left; padding: 16px 18px; border-radius: 14px; border: 1.5px solid var(--line);
  font-weight: 650; background: var(--bg); transition: border-color .15s, background .15s;
}
.quiz-opts button:hover, .quiz-opts button.is-active { border-color: var(--accent); background: var(--accent-soft); }
.quiz-form { display: grid; gap: 10px; max-width: 420px; }
.quiz-form input { border: 1.5px solid var(--line); border-radius: 12px; padding: 14px 16px; }

/* ── Process / materials / geo / promo ── */
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
@media (max-width: 960px) { .process-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .process-grid { grid-template-columns: 1fr; } }
.process-card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 18px; padding: 22px;
}
.process-card__n { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.process-card h3 { font-size: 18px; margin: 8px 0 8px; }
.process-card p { margin: 0; color: var(--muted); font-size: 14.5px; }

.mat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 800px) { .mat-grid { grid-template-columns: 1fr; } }
.mat-card { border-radius: 20px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-card); }
.mat-card img { width: 100%; height: 180px; object-fit: cover; }
.mat-card__body { padding: 18px 20px 22px; }
.mat-card h3 { font-size: 20px; margin-bottom: 6px; }

.ba-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .ba-wrap { grid-template-columns: 1fr; } }
.ba-card { position: relative; border-radius: 20px; overflow: hidden; min-height: 280px; }
.ba-card img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
.ba-card span {
  position: absolute; top: 14px; left: 14px; background: rgba(20,22,30,.78); color: #fff;
  font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 6px 10px; border-radius: 999px;
}

.geo-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.geo-chips span {
  padding: 10px 14px; border-radius: 999px; background: var(--bg-soft); border: 1px solid var(--line);
  font-size: 14px; font-weight: 600;
}

.promo-banner {
  background: var(--ink); color: #fff; border-radius: 28px; padding: 40px;
  display: grid; grid-template-columns: 1.4fr auto; gap: 24px; align-items: center;
}
.promo-banner h2 { color: #fff; font-size: clamp(26px, 3vw, 38px); }
.promo-banner p { color: rgba(255,255,255,.78); margin: 10px 0 0; }
@media (max-width: 720px) { .promo-banner { grid-template-columns: 1fr; padding: 28px 22px; } }

.light-cta {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center;
}
@media (max-width: 800px) { .light-cta { grid-template-columns: 1fr; } }
.light-cta img { width: 100%; border-radius: 22px; height: 280px; object-fit: cover; }

/* lightbox */
.lb-back { position: fixed; inset: 0; background: rgba(10,12,16,.86); z-index: 80; display: none; align-items: center; justify-content: center; padding: 24px; }
.lb-back.open { display: flex; }
.lb-back img { max-width: min(1200px, 96vw); max-height: 90vh; border-radius: 12px; }
.lb-back button { position: absolute; top: 18px; right: 18px; color: #fff; font-size: 32px; }

.funnel-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.funnel-row .btn { font-size: 13.5px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}