/* Визуал перенесён из прототипа MBSTROY3D */
:root {
  --frame: #1b1e21; --surface-100: #c9cccd; --surface-200: #b6babd; --surface-50: #eceef0; --surface-0: #f7f8f9;
  --ink: #17191b; --ink-muted: #474c51; --hairline: #17191b33; --outline: #17191b;
  --accent: #a9cde3; --accent-hover: #93bfd9; --on-accent: #17191b; --taupe-veil: #8a7266b3;
  --success: #2c5e43; --danger: #8a2f25; --scrim: #0f111399;
  --font-sans: "Inter Tight", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --font-wordmark: "Archivo", "Arial Black", sans-serif;
  --r-sm: 6px; --r-md: 16px; --r-lg: 28px; --shadow: 0 24px 48px -24px rgba(23, 25, 27, .35);
  --pad: clamp(16px, 4vw, 40px);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --frame: #0f1113; --surface-100: #1b1e21; --surface-200: #24282c; --surface-50: #2a2f33; --surface-0: #32383d;
  --ink: #e8eaeb; --ink-muted: #9aa1a7; --hairline: #e8eaeb2e; --outline: #e8eaeb; --accent-hover: #bcd9ea;
  --taupe-veil: #9c8274b3; --success: #7cc39a; --danger: #e88a7d; --shadow: 0 24px 48px -24px rgba(0, 0, 0, .6);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
.hidden { display: none !important; }
body {
  margin: 0; background: var(--frame); color: var(--ink); font: 16px/1.5 var(--font-sans);
  padding: 24px max(16px, env(safe-area-inset-right, 0px)) 24px max(16px, env(safe-area-inset-left, 0px));
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--outline); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
.price { font-variant-numeric: tabular-nums; font-weight: 500; }

/* --- компоненты --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 24px;
  border-radius: 999px; border: 1px solid transparent; font: 500 12px/1 var(--font-mono); letter-spacing: .06em;
  text-transform: uppercase; cursor: pointer; background: none; color: var(--ink); transition: background .15s, color .15s;
}
.btn--primary { background: var(--accent); color: var(--on-accent); }
.btn--primary:hover { background: var(--accent-hover); }
.btn--outline { border-color: var(--outline); height: 40px; }
.btn--outline:hover { background: var(--ink); color: var(--surface-100); }
.btn--ghost { padding: 0 8px; }
.btn.added { background: var(--ink); color: var(--surface-100); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.label { font: 400 12px/16px var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-muted); margin: 0; }
.badge {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 12px; border-radius: 999px;
  border: 1px solid var(--hairline); font: 400 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink); background: var(--surface-50);
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge--ok { color: var(--success); border-color: currentColor; }
.badge--file::before { border-radius: 1px; }
.dash { display: block; width: 56px; height: 6px; background: var(--ink); }
.hud { position: absolute; pointer-events: none; }
.hud::before, .hud::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(var(--ink-muted), var(--ink-muted)) top left/10px 1px no-repeat,
    linear-gradient(var(--ink-muted), var(--ink-muted)) top left/1px 10px no-repeat,
    linear-gradient(var(--ink-muted), var(--ink-muted)) top right/10px 1px no-repeat,
    linear-gradient(var(--ink-muted), var(--ink-muted)) top right/1px 10px no-repeat;
}
.hud::after { transform: scaleY(-1); }
.hud__veil { position: absolute; inset: 10px; background: var(--taupe-veil); mix-blend-mode: multiply; }
.callout { font: 400 11px/17px var(--font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--ink-muted); margin: 0; }
.callout--tick { width: 72px; height: 44px; border-left: 1px solid var(--ink-muted); border-bottom: 1px solid var(--ink-muted); margin-top: 8px; }
.chip {
  display: inline-flex; align-items: center; height: 34px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--hairline);
  font: 400 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink); background: var(--surface-50); cursor: pointer;
}
.chip.active { background: var(--ink); color: var(--surface-100); border-color: var(--ink); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.h2 { font-size: clamp(32px, 4vw, 56px); line-height: 1; letter-spacing: -.045em; font-weight: 600; margin: 8px 0 0; }
.lead { color: var(--ink-muted); max-width: 52ch; }
.placeholder { width: 100%; height: 100%; min-height: 200px; display: grid; place-items: center; font: 500 12px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-muted); }
model-viewer { width: 100%; height: 100%; background: transparent; --poster-color: transparent; }

/* --- страница --- */
.page { max-width: 1360px; margin: 0 auto; background: linear-gradient(180deg, var(--surface-200) 0, var(--surface-100) 640px); border-radius: var(--r-lg); overflow-x: clip; }
.top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 24px var(--pad); gap: 8px; }
.top__left { justify-self: start; display: flex; gap: 8px; }
.top__right { justify-self: end; display: flex; gap: 8px; align-items: center; }
.wordmark { font-family: var(--font-wordmark); font-weight: 800; font-stretch: 125%; font-size: clamp(16px, 2.2vw, 22px); color: var(--ink); }
#cart-count { font-variant-numeric: tabular-nums; }
@media (max-width: 639px) {
  .top { grid-template-columns: auto 1fr; }
  .top__left { grid-column: 1 / -1; order: 3; }
  .wordmark { justify-self: start; }
}

/* --- хиро --- */
.hero { position: relative; padding: 16px var(--pad) 0; }
.hero__row { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; align-items: end; }
.hero__title { font-size: clamp(48px, 9.4vw, 120px); line-height: .9; font-weight: 600; letter-spacing: -.055em; margin: 0; text-wrap: balance; }
.hero__side { display: flex; flex-direction: column; gap: 16px; }
.hero__lead { font-size: clamp(20px, 2.4vw, 30px); line-height: 1.1; letter-spacing: -.03em; font-weight: 500; margin: 0; max-width: 22ch; }
@media (max-width: 899px) { .hero__row { grid-template-columns: 1fr; } }
.stage { position: relative; height: clamp(320px, 46vw, 560px); margin-top: 8px; }
.stage::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 22%; background: linear-gradient(var(--surface-50), var(--surface-100)); z-index: 0; }
.stage__viewer { position: absolute; inset: 0; z-index: 1; }
.stage__viewer img { width: 100%; height: 100%; object-fit: contain; }
.stage .hud, .stage .callout { z-index: 2; }
.stage .callout { position: absolute; }
.stage__link { position: absolute; left: 6%; bottom: 10%; z-index: 2; }
@media (max-width: 639px) { .stage .hud, .stage .callout { display: none; } }
.materials { padding: 24px 0 40px; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.materials__row { display: flex; flex-wrap: wrap; gap: 32px 56px; justify-content: center; }
.materials__row span { font: 500 clamp(18px, 2.4vw, 28px)/1 var(--font-sans); letter-spacing: -.03em; }

/* --- каталог --- */
.catalog { padding: 40px var(--pad) 80px; background: var(--surface-100); }
.catalog__head { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.catalog__filters { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.grid { margin-top: 24px; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 24px; }
.card { background: var(--surface-50); border-radius: var(--r-md); overflow: hidden; display: flex; flex-direction: column; transition: transform .2s; }
.card:hover { transform: translateY(-3px); }
.card__media { position: relative; aspect-ratio: 4/3; background: linear-gradient(var(--surface-200), var(--surface-100) 72%, var(--surface-50) 72%); }
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card__tags { position: absolute; top: 16px; left: 16px; display: flex; gap: 6px; }
.card__body { padding: 16px; display: grid; gap: 8px; }
.card__sku { font: 400 11px/1 var(--font-mono); letter-spacing: .06em; color: var(--ink-muted); text-transform: uppercase; }
.card__title { font: 500 18px/1.2 var(--font-sans); letter-spacing: -.02em; margin: 0; }
.card__row { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; gap: 8px; }
.card__row .btn { height: 40px; padding: 0 16px; }
.pagination { display: flex; gap: 16px; justify-content: center; align-items: center; margin-top: 40px; }
.empty { color: var(--ink-muted); padding: 40px 0; }

/* --- товар --- */
.pd { padding: 24px var(--pad) 80px; }
.pd__grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 0; background: var(--surface-100); border-radius: var(--r-md); overflow: hidden; }
.pd__stage { position: relative; min-height: 480px; background: linear-gradient(var(--surface-200), var(--surface-100) 75%, var(--surface-50) 75%); }
.pd__stage model-viewer, .pd__stage .gallery { position: absolute; inset: 0; }
.gallery { overflow: auto; display: grid; align-content: start; gap: 1px; }
.gallery img { width: 100%; height: 100%; object-fit: contain; }
.pd__stage .callout { position: absolute; left: 16px; bottom: 16px; }
.media-switch { position: absolute; right: 16px; bottom: 16px; display: flex; gap: 6px; z-index: 2; }
.pd__info { position: relative; padding: 32px; display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.pd__title { font: 600 clamp(28px, 3vw, 40px)/1.02 var(--font-sans); letter-spacing: -.04em; margin: 0; }
.specs { display: grid; grid-template-columns: auto 1fr; gap: 8px 24px; border-top: 1px solid var(--hairline); padding-top: 16px; margin: 0; width: 100%; }
.specs dt { align-self: center; }
.specs dd { margin: 0; font: 13px/20px var(--font-mono); }
.pd__buy { margin-top: auto; width: 100%; display: grid; gap: 12px; border-top: 1px solid var(--hairline); padding-top: 16px; }
.offer { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: center; }
.offer .price { font-size: 28px; margin-left: auto; }
.adjacent { margin-top: 40px; }
.description { color: var(--ink-muted); }
.description p { margin: 0 0 8px; }
@media (max-width: 819px) { .pd__grid { grid-template-columns: 1fr; } .pd__stage { min-height: 320px; } .pd__info { padding: 24px; } }

/* --- корзина / оформление / простые страницы --- */
.sheet { padding: 24px var(--pad) 80px; }
.sheet__inner { max-width: 760px; background: var(--surface-0); border-radius: var(--r-md); padding: clamp(24px, 4vw, 40px); display: grid; gap: 16px; }
.cart-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 16px; }
.ci { display: grid; gap: 4px; }
.ci__row { display: grid; grid-template-columns: 64px 1fr auto; gap: 12px; align-items: center; }
.ci__row img, .ci__row .ph { width: 64px; height: 64px; border-radius: var(--r-sm); background: var(--surface-50); object-fit: cover; }
.ci__title { font: 500 15px/1.25 var(--font-sans); }
.ci__right { display: grid; gap: 6px; justify-items: end; }
.mini { display: inline-flex; align-items: center; border: 1px solid var(--hairline); border-radius: 999px; height: 32px; }
.mini button { width: 28px; height: 30px; border: 0; background: none; color: var(--ink); cursor: pointer; font: 500 14px/1 var(--font-mono); }
.mini span { min-width: 22px; text-align: center; font: 13px/1 var(--font-mono); font-variant-numeric: tabular-nums; }
.ci__del { justify-self: start; font-size: 11px; height: 28px; }
.cart__foot { border-top: 1px solid var(--hairline); padding-top: 16px; display: grid; gap: 8px; }
.row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.row--total { font-weight: 600; }
.row--total .price { font-size: 24px; }
.cart-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field input, .field textarea { width: 100%; height: 44px; padding: 0 14px; border: 1px solid var(--hairline); border-radius: var(--r-sm); background: var(--surface-0); color: var(--ink); font: 16px var(--font-sans); }
.field textarea { height: 96px; padding: 12px; resize: vertical; }
.errorlist { margin: 0; padding: 0; list-style: none; color: var(--danger); font-size: 14px; }
.hp { position: absolute; left: -9999px; }
.contacts { margin: 0; display: grid; gap: 16px; }
.contacts dd { margin: 4px 0 0; font-size: 24px; letter-spacing: -.02em; }

/* --- подвал --- */
.foot { background: var(--frame); color: #e8eaeb; padding: 40px var(--pad); display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; border-radius: 0 0 var(--r-lg) var(--r-lg); }
.foot .wordmark { color: #e8eaeb; }
.foot p { margin: 0; }
.foot .label { color: #9aa1a7; }
@media (max-width: 639px) { .foot { grid-template-columns: 1fr; } }