/* ============================================================
   DARK SWAP — Liquid Glass design system
   Единый источник стиля для лендинга (darkswap.tg) и апки
   (app.darkswap.tg). Тёмная тема only. Акцент — $TON #0098EA.

   Материалы (дисциплина):
   - .glass-nav      — хром навигации, 10-слойный рефлекс (≤1 на экран)
   - .glass-surface  — мелкие пилюли шелла
   - .glass-light    — модалки/шиты (blur 12, плотный фон — текст читаем)
   Контентные карточки — плоские (.card-flat). Blur не анимируем,
   скролл-контейнеры не блюрим. ≤6 мелких + 1 большая blur-поверхность.
   ============================================================ */

:root {
  color-scheme: dark;

  /* — TON accent — (rgb-токены space-separated: rgba(var(--accent-rgb)/.x)) */
  --accent: #0098EA;
  --accent-bright: #4FC3FF;
  --accent-deep: #0072C6;
  --accent-rgb: 0 152 234;
  --accent-bright-rgb: 79 195 255;
  --accent-deep-rgb: 0 114 198;

  /* — Surfaces: холодный near-black, hue ~215 — */
  --bg: #0A0E14;
  --bg-rgb: 10 14 20;
  --surface-1: #10151D;
  --surface-2: #161C26;
  --surface-3: #1D2430;

  /* — Text opacity ramp — */
  --text: rgba(255, 255, 255, .98);
  --text-dim: rgba(255, 255, 255, .64);
  --text-faint: rgba(255, 255, 255, .40);
  --text-ghost: rgba(255, 255, 255, .24);

  /* — Hairlines — */
  --border: rgba(255, 255, 255, .10);
  --border-soft: rgba(255, 255, 255, .06);
  --border-accent: rgba(var(--accent-rgb) / .35);

  /* — Radii: всё от одной базы — */
  --radius: 16px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 28px;
  --radius-pill: 999px;

  /* — Glass — */
  --glass-bg-rgb: 16 21 29;
  --glass-outline: rgba(255, 255, 255, .08);
  --glass-blur-heavy: 16px;
  --glass-sat-heavy: 165%;
  --glass-opacity-heavy: .55;
  --glass-blur-light: 12px;
  --glass-sat-light: 140%;
  --glass-opacity-light: .86;

  /* — Depth: один источник света сверху, бесцветные тени — */
  --edge-highlight: inset 0 1px 0 0 rgba(255, 255, 255, .07);
  --shadow-card: 0 1px 2px rgba(0, 0, 0, .25);
  --shadow-raised: 0 1px 2px rgba(0, 0, 0, .30), 0 8px 24px rgba(0, 0, 0, .35);
  --shadow-overlay: 0 -2px 10px rgba(0, 0, 0, .15), 0 12px 40px rgba(0, 0, 0, .50);
  --shadow-glow: 0 8px 28px rgba(var(--accent-rgb) / .35); /* только .btn-primary */

  /* — z-map — */
  --z-bg: -2;
  --z-grid: -1;
  --z-content: 1;
  --z-header: 100;
  --z-overlay: 1000;
}

/* ============ Base ============ */

.ds-reset *, .ds-reset *::before, .ds-reset *::after { margin: 0; padding: 0; box-sizing: border-box; }

body.ds-body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.ds-body ::selection { background: rgba(var(--accent-rgb) / .35); color: #fff; }
.ds-body :focus-visible { outline: 2px solid var(--accent-bright); outline-offset: 2px; border-radius: 4px; }
.ds-body a { color: inherit; text-decoration: none; }

.tabular { font-variant-numeric: tabular-nums; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ============ Typography ============ */

.display { font-weight: 800; letter-spacing: -.03em; line-height: 1.03; }
.h2 { font-weight: 800; letter-spacing: -.02em; line-height: 1.08; }
.label {
  font-size: 12px; font-weight: 800; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent-bright);
}
.grad {
  background: linear-gradient(135deg, #fff 0%, var(--accent-bright) 45%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ============ Background field ============ */

.bg-canvas {
  position: fixed; inset: 0; z-index: var(--z-bg); pointer-events: none; overflow: hidden;
  background:
    radial-gradient(1100px 700px at 50% -10%, rgba(var(--accent-rgb) / .16), transparent 60%),
    radial-gradient(700px 500px at 85% 20%, rgba(var(--accent-bright-rgb) / .07), transparent 60%),
    radial-gradient(900px 650px at 50% 115%, rgba(var(--accent-deep-rgb) / .10), transparent 60%),
    var(--bg);
}
.bg-grid {
  position: fixed; inset: 0; z-index: var(--z-grid); pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
          mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
}
/* Статичный дешёвый glow для второстепенных страниц (вместо rays) */
.bg-glow {
  position: fixed; inset: 0; z-index: var(--z-bg); pointer-events: none;
  background:
    radial-gradient(900px 560px at 50% -8%, rgba(var(--accent-rgb) / .14), transparent 62%),
    radial-gradient(760px 520px at 50% 112%, rgba(var(--accent-deep-rgb) / .08), transparent 60%),
    var(--bg);
}

/* LightRays container (из dark-minter static/css/light-rays.css) */
.light-rays-container { width: 100%; height: 100%; position: relative; pointer-events: none; overflow: hidden; }

/* ============ Glass materials ============ */

/* 10-слойный liquid-glass рефлекс (рецепт nftroulette) — хром навигации */
.glass-nav {
  --c-light: #fff;
  --c-dark: #000;
  --glass-reflex-dark: 2;
  --glass-reflex-light: .3;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius-xl);
  background-color: rgba(var(--glass-bg-rgb) / var(--glass-opacity-heavy));
  backdrop-filter: blur(var(--glass-blur-heavy)) saturate(var(--glass-sat-heavy));
  -webkit-backdrop-filter: blur(var(--glass-blur-heavy)) saturate(var(--glass-sat-heavy));
  transform: translateZ(0);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 10%), transparent),
    inset 1.8px 3px 0px -2px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 90%), transparent),
    inset -2px -2px 0px -2px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 80%), transparent),
    inset -3px -8px 1px -6px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 60%), transparent),
    inset -0.3px -1px 4px 0px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 12%), transparent),
    inset -1.5px 2.5px 0px -2px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 20%), transparent),
    inset 0px 3px 4px -2px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 20%), transparent),
    inset 2px -6.5px 1px -4px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 10%), transparent),
    0px 1px 5px 0px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 10%), transparent),
    0px 6px 16px 0px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 8%), transparent);
  transition: background-color .3s ease;
}
header.scrolled .glass-nav { background-color: rgba(var(--glass-bg-rgb) / .78); }

/* Мелкие пилюли шелла — heavy blur, упрощённая тень */
.glass-surface {
  background-color: rgba(var(--glass-bg-rgb) / var(--glass-opacity-heavy));
  border: 1px solid var(--glass-outline);
  backdrop-filter: blur(var(--glass-blur-heavy)) saturate(var(--glass-sat-heavy));
  -webkit-backdrop-filter: blur(var(--glass-blur-heavy)) saturate(var(--glass-sat-heavy));
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, .09),
    inset 0 -1px 1px 0 rgba(0, 0, 0, .25),
    0 1px 4px rgba(0, 0, 0, .25);
  transform: translateZ(0);
}

/* Модалки / шиты — плотный фон, текст читаем */
.glass-light {
  background-color: rgba(var(--glass-bg-rgb) / var(--glass-opacity-light));
  border: 1px solid rgba(255, 255, 255, .10);
  backdrop-filter: blur(var(--glass-blur-light)) saturate(var(--glass-sat-light));
  -webkit-backdrop-filter: blur(var(--glass-blur-light)) saturate(var(--glass-sat-light));
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, .08),
    inset 0 -1px 0 0 rgba(0, 0, 0, .20),
    var(--shadow-overlay);
  transform: translateZ(0);
}

/* ============ Buttons ============ */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: 48px; padding: 0 28px;
  border: 1px solid transparent; border-radius: var(--radius-md);
  font-family: inherit; font-size: 15px; font-weight: 700; line-height: 1;
  cursor: pointer; white-space: nowrap; user-select: none;
  transition: transform .18s ease, box-shadow .2s ease, filter .2s ease, background-color .2s ease;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* iOS glossy pill: вертикальный same-hue градиент + inset-блики */
.btn-primary {
  position: relative; overflow: hidden; color: #fff;
  background-color: var(--accent);
  background-image: linear-gradient(to bottom,
    color-mix(in srgb, var(--accent) 82%, white) 0%,
    var(--accent) 55%,
    color-mix(in srgb, var(--accent) 88%, black) 100%);
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, .25),
    inset 0 -1px 0 0 rgba(0, 0, 0, .18),
    0 1px 2px rgba(0, 0, 0, .35),
    var(--shadow-glow);
}
.btn-primary:hover {
  transform: translateY(-1px); filter: brightness(1.06);
  box-shadow:
    inset 0 1px 0 0 rgba(255, 255, 255, .25),
    inset 0 -1px 0 0 rgba(0, 0, 0, .18),
    0 2px 4px rgba(0, 0, 0, .35),
    0 12px 36px rgba(var(--accent-rgb) / .45);
}
.btn-primary:active { transform: scale(.98); filter: brightness(.97); }

/* Shimmer sweep: <span class="shine" aria-hidden="true"></span> внутри кнопки */
.btn-primary .shine, .shine-host .shine {
  position: absolute; top: 0; bottom: 0; left: 0; width: 40%; pointer-events: none;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .35), transparent);
  transform: translateX(-150%) skewX(-12deg);
  animation: ds-shimmer 3.2s ease-in-out infinite;
}
@keyframes ds-shimmer {
  0%, 70% { transform: translateX(-150%) skewX(-12deg); }
  100% { transform: translateX(320%) skewX(-12deg); }
}

.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, .05);
  border-color: var(--border);
  box-shadow: var(--edge-highlight);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .08); transform: translateY(-1px); }

.btn-lg { height: 56px; padding: 0 34px; font-size: 16px; border-radius: calc(var(--radius-md) + 2px); }
.btn-sm { height: 40px; padding: 0 18px; font-size: 14px; }

/* ============ Cards / chips / inputs ============ */

.card-flat {
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  border: 1px solid var(--border-soft);
  box-shadow: var(--edge-highlight), var(--shadow-card);
}
.card-hover { transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease; }
.card-hover:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: var(--edge-highlight), var(--shadow-raised);
}
/* Акцентное гало: <div class="card-halo" style="--g: rgba(0,152,234,.35)"> */
.card-halo { position: relative; overflow: hidden; }
.card-halo::before {
  content: ""; position: absolute; top: -40%; right: -30%; width: 220px; height: 220px;
  background: radial-gradient(circle, var(--g, rgba(var(--accent-rgb) / .35)), transparent 65%);
  opacity: .5; transition: opacity .3s; pointer-events: none;
}
.card-halo:hover::before { opacity: 1; }

.pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--border);
  font-size: 13px; font-weight: 700; color: var(--text-dim);
  box-shadow: var(--edge-highlight);
  white-space: nowrap;
}
.pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 10px var(--accent-bright);
  animation: ds-live-pulse 2s infinite;
}
@keyframes ds-live-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.chip-active {
  border-color: transparent; color: #fff;
  background-image: linear-gradient(to bottom,
    color-mix(in srgb, var(--accent) 82%, white),
    var(--accent) 60%);
  box-shadow: var(--shadow-raised);
}

.input {
  width: 100%; height: 48px; padding: 0 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--border-soft);
  color: var(--text);
  font-family: inherit; font-size: 15px; font-weight: 500;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, .28), inset 0 -1px 0 rgba(255, 255, 255, .03);
  transition: border-color .2s, box-shadow .2s;
}
.input::placeholder { color: var(--text-faint); }
.input:focus {
  outline: none;
  border-color: rgba(var(--accent-rgb) / .55);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, .28), 0 0 0 3px rgba(var(--accent-rgb) / .18);
}

/* ============ Effects ============ */

/* BorderBeam (порт dark-minter, чистый CSS):
   <div class="border-beam" aria-hidden="true"><span></span></div> внутри rounded-родителя */
.border-beam {
  position: absolute; inset: 0; border-radius: inherit;
  border: 1px solid transparent; pointer-events: none;
  -webkit-mask-image: linear-gradient(transparent, transparent), linear-gradient(#000, #000);
          mask-image: linear-gradient(transparent, transparent), linear-gradient(#000, #000);
  -webkit-mask-clip: padding-box, border-box;
          mask-clip: padding-box, border-box;
  -webkit-mask-composite: source-in;
          mask-composite: intersect;
}
.border-beam span {
  position: absolute; width: 60px; aspect-ratio: 1; border-radius: 50%;
  background: linear-gradient(to left, var(--accent), var(--accent-bright), transparent);
  offset-path: rect(0 auto auto 0 round 60px);
  animation: ds-border-beam 8s linear infinite;
}
@keyframes ds-border-beam { to { offset-distance: 100%; } }

/* Hero-флоатеры (эмодзи-карточки продуктов), только desktop */
.float-card {
  position: absolute; width: 120px; height: 148px; border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, .10);
  background: linear-gradient(to top, rgba(255, 255, 255, .07), rgba(var(--bg-rgb) / .45));
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 18px 44px rgba(0, 0, 0, .55);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  pointer-events: none;
}
.float-card .fc-ico { font-size: 38px; line-height: 1; filter: drop-shadow(0 6px 12px rgba(0, 0, 0, .45)); }
.float-card .fc-name { font-size: 12px; font-weight: 800; color: var(--text); opacity: .92; }
@keyframes ds-float-a {
  0%, 100% { transform: translateY(0) rotate(-6deg); }
  50% { transform: translateY(-22px) rotate(-1deg); }
}
@keyframes ds-float-b {
  0%, 100% { transform: translateY(0) rotate(6deg); }
  50% { transform: translateY(-26px) rotate(1deg); }
}
@media (max-width: 1279px) { .hero-floaters { display: none; } }

/* Marquee (бесшовный: трек = 2 равные половины, translateX(-50%)) */
.marquee {
  overflow: hidden; padding: 6px 0; position: relative;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.mq-track { display: flex; gap: 12px; width: max-content; animation: ds-scrollx 40s linear infinite; }
.mq-track.rev { animation-direction: reverse; animation-duration: 48s; }
.marquee:hover .mq-track { animation-play-state: paused; }
@keyframes ds-scrollx { to { transform: translateX(-50%); } }

/* Reveal-on-scroll (класс .in ставит fx.js).
   Прячем только после того, как fx.js подтвердил готовность (html.fx-ready):
   без JS / при падении скрипта контент остаётся видимым. */
.fx-ready .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.fx-ready .reveal.in { opacity: 1; transform: none; }

/* ============ Общий хром публичных страниц (_base_public.html) ============ */

.page-nav {
  position: sticky; top: 12px; z-index: var(--z-header);
  display: flex; align-items: center; justify-content: space-between;
  height: 60px; max-width: 1080px; margin: 12px auto 0;
  padding: 0 12px 0 18px;
}
.page-nav .nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; letter-spacing: -.02em; color: var(--text); }
.page-nav .nav-brand img { height: 28px; width: auto; }
.page-nav .nav-actions { display: flex; align-items: center; gap: 10px; }
@media (max-width: 1104px) { .page-nav { margin-left: 12px; margin-right: 12px; } }
@media (max-width: 480px) { .page-nav .nav-brand span { display: none; } }

.lang-switch { display: inline-flex; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.lang-switch .lang-btn {
  padding: 7px 11px; font-size: 12px; font-weight: 800;
  font-family: inherit; color: var(--text-faint);
  background: transparent; border: 0; cursor: pointer;
}
.lang-switch .lang-btn.active { background: rgba(255, 255, 255, .06); color: #fff; }

.page-footer {
  border-top: 1px solid var(--border-soft);
  margin-top: 64px; padding: 28px 20px;
  text-align: center; font-size: 13px; color: var(--text-faint);
}
.page-footer a { color: var(--text-dim); text-decoration: none; transition: color .2s; }
.page-footer a:hover { color: #fff; }

/* ============ Fallbacks (держать в конце файла) ============ */

/* 1 — нет backdrop-filter: стекло становится почти непрозрачным */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass-nav, .glass-surface, .float-card { background-color: rgba(var(--glass-bg-rgb) / .92); }
  .glass-light { background-color: var(--surface-1); }
}

/* 2 — prefers-reduced-transparency: плотные поверхности, без blur */
@media (prefers-reduced-transparency: reduce) {
  .glass-nav, .glass-surface, .float-card {
    background-color: rgba(var(--glass-bg-rgb) / .92);
    backdrop-filter: none; -webkit-backdrop-filter: none;
  }
  .glass-light { background-color: var(--surface-1); backdrop-filter: none; -webkit-backdrop-filter: none; }
}

/* 3 — prefers-reduced-motion: убить анимации, reveal видим сразу
   (LightRays/CountUp дополнительно гейтятся в JS) */
@media (prefers-reduced-motion: reduce) {
  .ds-motion *, .ds-motion *::before, .ds-motion *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .btn-primary .shine, .shine-host .shine, .border-beam span, .mq-track { animation: none !important; }
}

/* 4 — прогрессивные iOS-сквиркл углы */
@supports (corner-shape: squircle) {
  .card-flat, .glass-nav, .glass-surface, .glass-light,
  .btn-primary, .btn-ghost, .input, .float-card { corner-shape: squircle; }
}
