/* Nocturne — design-system tokens and component classes, извлечены из
   NOCTA Skins Marketplace (standalone).html (встроенный <style> с этим же
   комментарием). Компоненты (.btn/.tag/.card/.seg/.nav/...) — оригинал,
   без изменений; ниже добавлены только специфичные для страницы блоки
   (hero, grid каталога, чипы фильтра, faq, reveal-анимации). */

:root {
  --color-bg: #161826;
  --color-surface: #232532;
  --color-text: #e9e9ed;
  --color-accent: #9184d9;
  --color-accent-2: #a7a1db;
  --color-divider: color-mix(in srgb, #e9e9ed 16%, transparent);

  --color-neutral-100: #f3f5fe;
  --color-neutral-200: #e4e7f5;
  --color-neutral-300: #cfd3e5;
  --color-neutral-400: #b2b6ca;
  --color-neutral-500: #9397ab;
  --color-neutral-600: #75798c;
  --color-neutral-700: #595d6c;
  --color-neutral-800: #3f424d;
  --color-neutral-900: #292b31;

  --color-accent-100: #f5f4ff;
  --color-accent-200: #e7e5fe;
  --color-accent-300: #d2cefd;
  --color-accent-400: #b5abfc;
  --color-accent-500: #968ae0;
  --color-accent-600: #796cbf;
  --color-accent-700: #5d5294;
  --color-accent-800: #423a6a;
  --color-accent-900: #2b2741;

  --font-heading: "Inter", system-ui, sans-serif;
  --font-heading-weight: 500;
  --font-body: "Inter", system-ui, sans-serif;

  --space-1: 2.8px;
  --space-2: 5.6px;
  --space-3: 8.4px;
  --space-4: 11.2px;
  --space-5: 14px;
  --space-6: 16.8px;
  --space-8: 22.4px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  --shadow-sm: 0 0 0 1px #3f424d;
  --shadow-md: 0 0 0 1px #595d6c, 0 6px 18px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 0 0 1px #9397ab, 0 16px 40px rgba(0, 0, 0, 0.65);

  --rarity-consumer: #b0c3d9;
  --rarity-industrial: #5e98d9;
  --rarity-milspec: #4b69ff;
  --rarity-restricted: #8847ff;
  --rarity-classified: #d32ce6;
  --rarity-covert: #eb4b4b;
  --rarity-contraband: #e4ae39;
  --rarity-extraordinary: #ffd75e;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-2);
}
h1 { font-size: 42px; }

p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent); text-underline-offset: 3px; }
img { display: block; max-width: 100%; }
/* .btn/.user-badge задают display:flex — без !important атрибут hidden не скрывает */
[hidden] { display: none !important; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

svg.icon { width: 1em; height: 1em; display: inline-block; vertical-align: -0.125em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
svg.icon.filled { fill: currentColor; stroke: none; }

/* — buttons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text);
  background: transparent; border: 1px solid transparent;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { color: var(--color-accent); border-color: var(--color-accent); }
.btn-primary:hover { background: color-mix(in srgb, var(--color-accent) 12%, transparent); }
.btn-primary:active { background: color-mix(in srgb, var(--color-accent) 22%, transparent); }
.btn-secondary { border-color: var(--color-divider); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }
.btn-icon { width: 36px; height: 36px; padding: 0; }

/* — forms — */
.input {
  min-height: 36px; padding: 6px 10px; font: inherit;
  font-size: 14px; color: var(--color-text); caret-color: var(--color-accent);
  background: var(--color-surface);
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.input:hover { border-color: color-mix(in srgb, var(--color-text) 45%, transparent); }
.input:focus-visible { border-color: var(--color-accent); outline-offset: 0; }

.seg { display: inline-flex; overflow: hidden; border: 1px solid var(--color-divider); border-radius: var(--radius-md); }
.seg-opt { display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; font-size: 13px; cursor: pointer; }
.seg-opt input { position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none; }
.seg-opt + .seg-opt { border-left: 1px solid var(--color-divider); }
.seg-opt:has(input:checked) { color: var(--color-accent); box-shadow: inset 0 0 0 1px var(--color-accent); }
.seg-opt:not(:has(input:checked)):hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }

/* — cards — */
.card { display: flex; flex-direction: column; gap: var(--space-2); padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface); }
.card-title { font-family: var(--font-heading); font-weight: var(--font-heading-weight); font-size: 17px; line-height: 1.2; }
.card-meta { display: flex; align-items: center; gap: 6px; font-size: 11px; color: color-mix(in srgb, var(--color-text) 50%, transparent); }
.elev-sm { box-shadow: var(--shadow-sm); }
.elev-lg { box-shadow: var(--shadow-lg); }

/* — tags — */
.tag { display: inline-flex; align-items: center; font-size: 11px; letter-spacing: 0.02em; padding: 3px 10px; border-radius: calc(var(--radius-md) * 0.75); }
.tag-accent { background: var(--color-accent-800); color: var(--color-accent-100); }
.tag-neutral { background: var(--color-neutral-800); color: var(--color-neutral-100); }
.tag-outline { border: 1px solid var(--color-accent); color: var(--color-accent); }

/* — navigation — */
.nav {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) 24px;
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-divider);
}
.nav-brand { display: flex; align-items: center; gap: 8px; font-family: var(--font-heading); font-weight: var(--font-heading-weight); font-size: 18px; margin-right: auto; color: var(--color-text); }
.nav-brand svg { color: var(--color-accent); }
.nav a { color: inherit; text-decoration: none; font-size: 14px; cursor: pointer; transition: color 0.15s ease; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--color-accent); }
.nav-side { margin-left: auto; display: flex; align-items: center; gap: var(--space-4); }
.nav-side span { font-size: 13px; opacity: 0.6; }

/* — user badge (мок Steam-авторизации, без бэкенда) — */
.user-badge { display: flex; align-items: center; gap: 8px; }
.user-avatar { width: 32px; height: 32px; border-radius: 6px; object-fit: cover; }
.user-name { font-size: 14px; font-weight: 500; color: var(--color-text); opacity: 1; }
.btn-logout {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; padding: 0; border-radius: var(--radius-md);
  border: 1px solid var(--color-divider); background: transparent; color: color-mix(in srgb, var(--color-text) 65%, transparent);
  cursor: pointer;
}
.btn-logout:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-logout svg { width: 15px; height: 15px; }

/* — views — */
.view { display: none; opacity: 0; transform: translateY(6px); transition: opacity 0.22s ease, transform 0.22s ease; }
.view.active { display: block; opacity: 1; transform: translateY(0); }

/* — reveal on scroll — */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* — hero — */
.hero {
  padding: 64px 64px 32px;
  display: flex; justify-content: space-between; align-items: center; gap: 56px;
  position: relative; flex-wrap: wrap;
}
.hero-glow { position: absolute; inset: 0; pointer-events: none; z-index: 0; background: radial-gradient(560px circle at var(--mx, 50%) var(--my, 50%), rgba(145, 132, 217, 0.16), transparent 60%); }
.hero-left { max-width: 560px; position: relative; z-index: 1; }
.hero-left h1 { font-size: 56px; margin: var(--space-3) 0 var(--space-2); }
.hero-left h1 .accent { color: var(--color-accent-300); }
.hero-left p { font-size: 16px; opacity: 0.75; max-width: 46ch; margin-bottom: var(--space-6); }
.hero-left .btn { font-size: 16px; padding: 14px 28px; margin-bottom: var(--space-6); }
.hero-rating { display: flex; align-items: center; gap: var(--space-3); }
.hero-rating .stars { display: flex; gap: 2px; color: var(--color-accent); font-size: 15px; }
.hero-rating span.count { font-size: 14px; opacity: 0.85; }

.hero-right { position: relative; z-index: 1; width: 380px; height: 420px; flex: 0 0 auto; }
.hero-card { position: absolute; transition: transform 0.15s ease-out; }
.hero-card .card { padding: var(--space-2); overflow: hidden; }
.hero-card img, .hero-card .glyph { width: 100%; height: 110px; border-radius: 10px; object-fit: contain; background: color-mix(in srgb, var(--color-text) 4%, transparent); }
.hero-card .meta { font-size: 12px; opacity: 0.7; margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hero-card .price { font-size: 16px; font-weight: 700; margin-top: 2px; }
.hero-card-1 { top: 0; left: 20px; width: 220px; height: 170px; transform: rotate(-4deg); }
.hero-card-2 { top: 110px; right: 0; width: 230px; height: 190px; transform: rotate(3deg); }
.hero-card-3 { bottom: 0; left: 60px; width: 210px; height: 180px; transform: rotate(-2deg); }

/* — features — */
.features { padding: 24px 64px 56px; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
.feature-icon { width: 40px; height: 40px; border-radius: var(--radius-md); border: 1px solid var(--color-divider); display: flex; align-items: center; justify-content: center; color: var(--color-accent); font-size: 18px; margin-bottom: var(--space-3); }
.feature-title { font-family: var(--font-heading); font-size: 15px; margin-bottom: 4px; }
.feature-desc { font-size: 13px; opacity: 0.65; }

/* — payments — */
.payments { padding: 32px 64px 64px; border-top: 1px solid var(--color-divider); }
.payments-label { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.5; margin-bottom: var(--space-4); }
.payments-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.payment-chip { display: flex; align-items: center; gap: 8px; padding: 9px 16px; border: 1px solid var(--color-divider); border-radius: var(--radius-md); font-size: 13px; }
.payment-chip svg { color: var(--color-accent); font-size: 16px; }

/* — catalog — */
.catalog-head { padding: 56px 64px 24px; }
.catalog-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-4); margin-bottom: var(--space-6); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--color-divider); background: transparent; color: color-mix(in srgb, var(--color-text) 65%, transparent); font-size: 13px; cursor: pointer; transition: all 0.15s ease; }
.chip:hover { border-color: var(--color-accent); color: var(--color-text); }
.chip.active { background: var(--color-accent); border-color: var(--color-accent); color: #161826; font-weight: 600; }

.catalog-body { padding: 0 64px 64px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: var(--space-5); }
.skin-card { height: 100%; cursor: default; }
.skin-card .rarity-bar { display: block; height: 2px; margin: calc(-1 * var(--space-3)) calc(-1 * var(--space-3)) var(--space-2); border-radius: var(--radius-md) var(--radius-md) 0 0; }
.skin-thumb { position: relative; width: 100%; height: 120px; border-radius: var(--radius-sm); overflow: hidden; }
.skin-thumb .glow { position: absolute; inset: 0; }
.skin-thumb img { position: relative; width: 100%; height: 100%; object-fit: contain; padding: 6px; }
.skin-thumb .glyph { position: relative; width: 100%; height: 100%; }
.skin-qty { position: absolute; right: 6px; bottom: 6px; background: rgba(15, 16, 26, 0.8); color: color-mix(in srgb, var(--color-text) 70%, transparent); font-size: 11px; font-weight: 700; padding: 2px 6px; border-radius: 4px; }
.skin-card .card-title { font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tag-st { color: #cf6a32; }
.tag-sv { color: #ffd75e; }
.skin-price-row { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: var(--space-2); }
.skin-price { font-family: var(--font-heading); font-size: 19px; font-weight: 700; color: var(--color-accent-300); }
.empty { text-align: center; padding: 60px 20px; opacity: 0.6; grid-column: 1 / -1; }
.count-label { color: color-mix(in srgb, var(--color-text) 55%, transparent); font-size: 13px; }

/* — faq — */
.faq { padding: 56px 64px 80px; max-width: 820px; }
.faq-item { border: 1px solid var(--color-divider); border-radius: var(--radius-md); overflow: hidden; }
.faq-item + .faq-item { margin-top: var(--space-3); }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: var(--space-4); background: var(--color-surface); border: 0; color: var(--color-text); font-family: var(--font-heading); font-size: 15px; cursor: pointer; text-align: left; }
.faq-q svg { transition: transform 0.25s; }
.faq-item.open .faq-q svg { transform: rotate(180deg); }
.faq-a-wrap { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-a-wrap { max-height: 300px; }
.faq-a { padding: 0 var(--space-4) var(--space-4); margin: 0; font-size: 14px; opacity: 0.75; }

footer.site-footer { border-top: 1px solid var(--color-divider); padding: 20px 64px; opacity: 0.5; font-size: 13px; text-align: center; }

@media (max-width: 860px) {
  .hero, .features, .payments, .catalog-head, .catalog-body, .faq { padding-left: 20px; padding-right: 20px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-right { display: none; }
}