/* ==========================================================================
   Казино Купюры — companion site styles
   Premium social-casino / engraved-banknote aesthetic (dark, felt + gold foil)
   Palette & motion mirror the app design system (design/DESIGN.md).
   ========================================================================== */

:root {
  --bg: #08130D;
  --surface: #0E1E15;
  --elevated: #14291C;
  --felt-panel: #0B3B27;
  --felt: #12764C;
  --felt-deep: #0B4D31;
  --felt-bright: #1FA167;
  --gold: #D8B24A;
  --gold-bright: #F4DC93;
  --gold-deep: #9C7A1E;
  --on-gold: #1A140A;
  --engraving: #6F9E82;
  --engraving-soft: #A7C4B2;
  --ink: #F1ECDC;
  --ink-2: #B9C4BB;
  --ink-3: #7E8E82;
  --line: #22382B;
  --error: #D0455A;
  --success: #2FBE7E;
  --warning: #E8A63C;
}

/* ---- base ---------------------------------------------------------------- */
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background-color: var(--bg);
  color: var(--ink);
  font-family: "Golos Text", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(216,178,74,.28); color: var(--ink); }

.font-display { font-family: "Playfair Display", Georgia, "Times New Roman", serif; }
.font-body { font-family: "Golos Text", "Helvetica Neue", Arial, sans-serif; }
.num { font-family: "JetBrains Mono", "Roboto Mono", monospace; font-feature-settings: "tnum" 1; letter-spacing: .01em; }

a { color: inherit; }
img { max-width: 100%; height: auto; }

/* keyboard focus — visible, on-brand */
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }

/* thin custom scrollbar */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: #0a1a11; }
::-webkit-scrollbar-thumb { background: #1c3325; border-radius: 8px; border: 3px solid #0a1a11; }
::-webkit-scrollbar-thumb:hover { background: #26492f; }

/* ---- backgrounds & texture --------------------------------------------- */
.felt-hero {
  background:
    radial-gradient(120% 90% at 50% -10%, #14432C 0%, #0B3B27 44%, #08130D 100%);
}
.felt-panel {
  background:
    linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0) 40%),
    linear-gradient(180deg, #0d2519 0%, #0a1a11 100%);
}
.hairline-top { box-shadow: inset 0 1px 0 rgba(216,178,74,.22); }

/* guilloché rosette layer — the banknote engraving texture */
.guilloche {
  position: absolute;
  pointer-events: none;
  background-image: url("../img/guilloche-rosette.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  opacity: .10;
  z-index: 0;
}
.guilloche--faint { opacity: .06; }

/* faint engraving pinstripe used behind headers/footers */
.engraving-stripes {
  background-image: repeating-linear-gradient(
    115deg,
    rgba(111,158,130,.05) 0px,
    rgba(111,158,130,.05) 1px,
    transparent 1px,
    transparent 7px
  );
}

/* ---- gold foil text ----------------------------------------------------- */
.foil {
  background: linear-gradient(100deg, #9C7A1E 0%, #F4DC93 28%, #D8B24A 52%, #F4DC93 74%, #9C7A1E 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: foilShift 9s ease-in-out infinite;
}
@keyframes foilShift { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

.text-gold { color: var(--gold); }
.text-goldb { color: var(--gold-bright); }
.text-ink2 { color: var(--ink-2); }
.text-ink3 { color: var(--ink-3); }
.text-engrave { color: var(--engraving); }

/* eyebrow / overline — serial-strip voice */
.eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

/* ---- frames & surfaces -------------------------------------------------- */
.card-frame {
  background:
    linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,0) 34%),
    var(--surface);
  border: 1px solid rgba(111,158,130,.28);
  border-radius: 18px;
  transition: border-color .35s ease, transform .35s ease, box-shadow .35s ease;
}
.card-frame:hover {
  border-color: rgba(216,178,74,.42);
  transform: translateY(-4px);
  box-shadow: 0 18px 44px -22px rgba(0,0,0,.75), 0 0 0 1px rgba(216,178,74,.10);
}
.frame-gold { border: 1px solid rgba(216,178,74,.30); }
.divider-gold {
  height: 1px; border: 0;
  background: linear-gradient(90deg, transparent, rgba(216,178,74,.45) 50%, transparent);
}

/* ---- buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  min-height: 52px; padding: .85rem 1.6rem;
  border-radius: 14px;
  font-weight: 600; font-size: .98rem; line-height: 1.15;
  cursor: pointer; text-align: center;
  transition: transform .12s ease, box-shadow .3s ease, background .3s ease, border-color .3s ease;
  position: relative; overflow: hidden;
}
.btn:active { transform: scale(.975); }

.btn-gold {
  background: linear-gradient(135deg, #F4DC93 0%, #D8B24A 55%, #9C7A1E 100%);
  color: var(--on-gold);
  box-shadow: 0 10px 28px -8px rgba(216,178,74,.5), inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-gold:hover { box-shadow: 0 14px 34px -8px rgba(216,178,74,.7), inset 0 1px 0 rgba(255,255,255,.5); }

.btn-felt {
  background: linear-gradient(180deg, #1FA167 0%, #12764C 50%, #0B4D31 100%);
  color: var(--ink);
  border: 1px solid rgba(216,178,74,.30);
  box-shadow: 0 10px 26px -12px rgba(31,161,103,.6);
}
.btn-felt:hover { box-shadow: 0 14px 30px -12px rgba(31,161,103,.8); }

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1.5px solid rgba(216,178,74,.5);
}
.btn-outline:hover { background: rgba(216,178,74,.10); border-color: var(--gold); }

.btn-ghost { background: transparent; color: var(--ink-2); min-height: auto; padding: .3rem 0; }
.btn-ghost:hover { color: var(--gold); }

/* shimmer sweep for gold surfaces */
.shimmer::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,.55) 50%, transparent 70%);
  transform: translateX(-140%);
  animation: sweep 4.5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes sweep { 0% { transform: translateX(-140%); } 45%,100% { transform: translateX(140%); } }

/* ---- store badge (Android) --------------------------------------------- */
.store-badge {
  display: inline-flex; align-items: center; gap: .75rem;
  min-height: 56px; padding: .55rem 1.35rem;
  border-radius: 14px;
  background: linear-gradient(180deg, #14291C 0%, #0d2016 100%);
  border: 1px solid rgba(216,178,74,.34);
  transition: transform .2s ease, border-color .3s ease, box-shadow .3s ease;
}
.store-badge:hover { transform: translateY(-2px); border-color: var(--gold); box-shadow: 0 12px 30px -14px rgba(216,178,74,.5); }
.store-badge .lbl-sm { font-size: .66rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); }
.store-badge .lbl-lg { font-size: 1.12rem; font-weight: 700; color: var(--ink); line-height: 1.1; }

/* ---- banknote token (signature) ---------------------------------------- */
.banknote {
  position: relative;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, #F4DC93, #9C7A1E 55%, #F4DC93);
  box-shadow: 0 20px 50px -24px rgba(0,0,0,.8);
}
.banknote-inner {
  position: relative;
  border-radius: 15px;
  background:
    radial-gradient(140% 120% at 50% 0%, #12402a 0%, #0c281a 60%, #0a1f14 100%);
  border: 1px solid rgba(216,178,74,.35);
  overflow: hidden;
}
.banknote-inner .guilloche { opacity: .14; }

/* monogram medallion */
.medallion {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  background: linear-gradient(135deg, #F4DC93 0%, #D8B24A 55%, #9C7A1E 100%);
  color: var(--on-gold);
  font-family: "Playfair Display", serif; font-weight: 800;
  box-shadow: 0 0 0 1px rgba(255,255,255,.25) inset, 0 10px 26px -10px rgba(216,178,74,.6);
}

/* HUD pill (mirrors in-app currency HUD) */
.hud-pill {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .34rem .7rem .34rem .5rem;
  border-radius: 999px;
  background: var(--elevated);
  border: 1px solid rgba(216,178,74,.4);
}
.hud-glyph {
  width: 30px; height: 20px; border-radius: 5px;
  background: linear-gradient(135deg, #1f7a52, #0d3b27);
  border: 1px solid rgba(216,178,74,.6);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: "Playfair Display", serif; font-weight: 800; font-size: .72rem; color: var(--gold-bright);
}

/* ---- chips -------------------------------------------------------------- */
.chip {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .5rem .9rem; border-radius: 999px;
  background: var(--elevated); border: 1px solid rgba(111,158,130,.3);
  font-size: .86rem; color: var(--ink-2);
}
.chip i { color: var(--gold); }

/* ---- phone frame -------------------------------------------------------- */
.phone {
  position: relative;
  border-radius: 34px;
  padding: 9px;
  background: linear-gradient(160deg, #26402f, #0c1a12);
  border: 1px solid rgba(216,178,74,.28);
  box-shadow: 0 40px 90px -40px rgba(0,0,0,.9), 0 0 0 1px rgba(0,0,0,.4) inset;
}
.phone img { display: block; border-radius: 26px; width: 100%; }
.phone::before {
  content: ""; position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
  width: 34%; height: 5px; border-radius: 999px; background: rgba(0,0,0,.5); z-index: 2;
}

/* ---- breathing glow ----------------------------------------------------- */
.breathe { animation: breathe 3.4s ease-in-out infinite; }
@keyframes breathe {
  0%,100% { filter: drop-shadow(0 0 14px rgba(216,178,74,.30)); }
  50% { filter: drop-shadow(0 0 30px rgba(216,178,74,.55)); }
}

/* ---- nav ---------------------------------------------------------------- */
.site-nav {
  transition: background-color .35s ease, border-color .35s ease, backdrop-filter .35s ease;
  border-bottom: 1px solid transparent;
}
.site-nav.scrolled {
  background: rgba(10,22,15,.86);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom-color: rgba(216,178,74,.22);
}
.nav-link { position: relative; color: var(--ink-2); font-weight: 500; transition: color .25s ease; }
.nav-link:hover, .nav-link.active { color: var(--gold); }
.nav-link.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

/* mobile drawer */
.drawer { transition: transform .35s cubic-bezier(.4,0,.2,1); }
.drawer.closed { transform: translateX(100%); }

/* ---- FAQ accordion ------------------------------------------------------ */
.faq-item { border: 1px solid rgba(111,158,130,.24); border-radius: 16px; background: var(--surface); overflow: hidden; }
.faq-item + .faq-item { margin-top: .85rem; }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.15rem 1.25rem; text-align: left; cursor: pointer;
  font-weight: 600; font-size: 1.02rem; color: var(--ink); background: transparent; min-height: 44px;
}
.faq-q .fa-chevron-down { transition: transform .3s ease; color: var(--gold); }
.faq-item.open .faq-q .fa-chevron-down { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a-inner { padding: 0 1.25rem 1.2rem; color: var(--ink-2); line-height: 1.65; }

/* ---- legal / prose ------------------------------------------------------ */
.prose-legal { color: var(--ink-2); line-height: 1.72; }
.prose-legal h2 {
  font-family: "Playfair Display", serif; color: var(--ink);
  font-size: 1.5rem; margin: 2.4rem 0 .9rem; font-weight: 700;
  scroll-margin-top: 110px;
}
.prose-legal h3 { color: var(--gold); font-size: 1.08rem; font-weight: 600; margin: 1.6rem 0 .5rem; }
.prose-legal p { margin: .85rem 0; }
.prose-legal ul { margin: .85rem 0; padding-left: 1.3rem; list-style: none; }
.prose-legal ul li { position: relative; padding-left: 1.2rem; margin: .5rem 0; }
.prose-legal ul li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 6px; height: 6px; border-radius: 999px; background: var(--gold);
}
.prose-legal strong { color: var(--ink); font-weight: 600; }
.prose-legal a { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }
.prose-legal a:hover { color: var(--gold-bright); }

/* table of contents (legal) */
.toc a { color: var(--ink-2); transition: color .2s ease; display: block; padding: .3rem 0; }
.toc a:hover { color: var(--gold); }

/* AoS-lite: elements animate in via .reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

/* ---- reduced motion ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .foil, .shimmer::after, .breathe { animation: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  * { scroll-behavior: auto !important; }
}