/* Sova brand tokens — from the Sova design system (theme "Ночь") */
:root {
  --ground: #10131F;
  --surface: #1A1F31;
  --surface-raised: #242B42;
  --line: #3A4363;
  --ink: #EFE8D8;
  --ink-muted: #A7ADC2;
  --gold: #C9A24D;
  --gold-light: #E6D3A3;
  --midnight: #33437A;
  --moonlight: #E6D3A3;
  --on-gold: #10131F;
  --danger: #F0A39A;
  --ok: #9FD3B0;

  --font-display: "Forum", "Times New Roman", serif;
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-sans: "Golos Text", system-ui, -apple-system, "Segoe UI", sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-card: 12px;
  --glow-gold: 0 0 28px rgba(201, 162, 77, 0.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: var(--gold); text-underline-offset: 3px; }
a:hover { color: var(--gold-light); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: var(--radius-sm); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

#sky { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }

.page {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
  padding-top: max(16px, env(safe-area-inset-top, 0px));
  padding-bottom: max(24px, env(safe-area-inset-bottom, 0px));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 8px 24px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--gold-light); }
.wordmark { font-family: var(--font-display); font-size: 22px; letter-spacing: 0.3em; }
.top-r { display: flex; align-items: center; gap: 10px; }
.lang { font-size: 13px; font-weight: 500; letter-spacing: 0.06em; color: var(--ink-muted); text-decoration: none; padding: 6px 10px; border-radius: 999px; }
.lang:hover { color: var(--gold-light); }
.ig { font-size: 14px; color: var(--ink-muted); text-decoration: none; border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; }
.ig:hover { color: var(--gold-light); border-color: var(--gold); }

/* layout */
.hero {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-areas: "copy deck" "signup deck";
  column-gap: 56px;
  row-gap: 32px;
  align-items: start;
  padding-block: 24px 48px;
}
.copy { grid-area: copy; align-self: end; }
.deck { grid-area: deck; align-self: center; }
.signup { grid-area: signup; }

@media (max-width: 820px) {
  .hero { grid-template-columns: minmax(0, 1fr); grid-template-areas: "copy" "deck" "signup"; row-gap: 36px; padding-block: 8px 32px; }
}

/* copy */
.eyebrow { margin: 0 0 14px; font-size: 12px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); }
h1 {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(38px, 6vw, 58px);
  line-height: 1.05;
  color: var(--ink);
  text-wrap: balance;
}
.lead { margin: 0; max-width: 46ch; color: var(--ink-muted); font-size: 17px; }

/* deck */
.hint { text-align: center; margin: 0 0 30px; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); min-height: 1.6em; }
.cards { display: flex; justify-content: center; gap: clamp(10px, 2.4vw, 22px); perspective: 1000px; }
.card {
  --w: clamp(96px, 26vw, 150px);
  width: var(--w);
  aspect-ratio: 2 / 3;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-card);
  transition: transform 0.5s cubic-bezier(.2, .8, .2, 1), opacity 0.5s;
  -webkit-tap-highlight-color: transparent;
}
.card:nth-child(1) { transform: rotate(-6deg) translateY(10px); }
.card:nth-child(3) { transform: rotate(6deg) translateY(10px); }
.cards:not(.done) .card:hover { transform: translateY(-10px); }
.cards.shuffle .card { animation: shuffle 0.9s ease-in-out; }
.cards.shuffle .card:nth-child(2) { animation-delay: 0.08s; }
.cards.shuffle .card:nth-child(3) { animation-delay: 0.16s; }
@keyframes shuffle {
  0%, 100% { transform: translateX(0) rotate(0); }
  30% { transform: translateX(calc(var(--w) * 0.6)) rotate(8deg); }
  65% { transform: translateX(calc(var(--w) * -0.6)) rotate(-8deg); }
}
.cards.done .card { cursor: default; }
.cards.done .card:not(.picked) { opacity: 0.28; transform: scale(0.94); }
.cards.done .card.picked { transform: translateY(-14px) scale(1.06); }

.inner { position: relative; display: block; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform 0.85s cubic-bezier(.3, .7, .2, 1); }
.card.picked .inner { transform: rotateY(180deg); }
.back, .face {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-card);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border: 1.5px solid var(--gold);
  overflow: hidden;
}
.back::before, .face::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 0.5px solid var(--gold);
  border-radius: var(--radius-sm);
  pointer-events: none;
}
.back {
  background: radial-gradient(circle at 50% 50%, rgba(230, 211, 163, 0.10), transparent 60%), var(--midnight);
  display: grid;
  place-items: center;
}
.back::after {
  content: "";
  width: 52%;
  aspect-ratio: 1;
  background: url("/assets/owl.svg") center / contain no-repeat;
}
.face {
  transform: rotateY(180deg);
  background: var(--ground);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 14% 8%;
  text-align: center;
}
.card.picked .face { box-shadow: var(--glow-gold); }
.f-num { font-family: var(--font-display); font-size: clamp(11px, 2.6vw, 14px); letter-spacing: 0.2em; color: var(--gold-light); }
.f-sym { width: 46%; aspect-ratio: 1; color: var(--gold); }
.f-name { font-family: var(--font-display); font-size: clamp(11px, 2.8vw, 15px); letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-light); line-height: 1.2; }

.spark { position: absolute; width: 4px; height: 4px; border-radius: 50%; background: var(--gold-light); pointer-events: none; animation: spark 0.9s ease-out forwards; }
@keyframes spark { from { opacity: 1; transform: translate(0, 0) scale(1); } to { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(0.3); } }

.reading { margin: 26px auto 0; max-width: 40ch; text-align: center; }
.reading[hidden] { display: none; }
.r-meaning { margin: 0 0 10px; color: var(--ink); }
.r-question { margin: 0 0 16px; font-family: var(--font-serif); font-style: italic; font-weight: 500; font-size: 22px; line-height: 1.35; color: var(--gold-light); }
.link-btn { background: none; border: 0; padding: 4px 0; color: var(--gold); font: 500 14px var(--font-sans); cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.link-btn:hover { color: var(--gold-light); }

/* signup */
.signup h2 { margin: 0 0 6px; font-family: var(--font-serif); font-weight: 600; font-size: 28px; line-height: 1.2; }
.sub { margin: 0 0 16px; color: var(--ink-muted); font-size: 15px; max-width: 46ch; }
.field { display: flex; gap: 10px; flex-wrap: wrap; }
.field input {
  flex: 1 1 220px;
  min-width: 0;
  height: 48px;
  padding: 0 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--ink-muted);
  background: var(--surface);
  color: var(--ink);
  font: 16px var(--font-sans);
}
.field input::placeholder { color: var(--ink-muted); opacity: 0.8; }
.field input:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201, 162, 77, 0.25); }
.field input[aria-invalid="true"] { border-color: var(--danger); }
.field button {
  flex: 0 0 auto;
  height: 48px;
  padding: 0 22px;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--gold);
  color: var(--on-gold);
  font: 500 16px var(--font-sans);
  cursor: pointer;
}
.field button:hover { background: var(--gold-light); }
.field button[disabled] { opacity: 0.6; cursor: progress; }
@media (max-width: 420px) { .field button { flex: 1 1 100%; } }
.consent { display: flex; gap: 10px; align-items: flex-start; margin-top: 14px; font-size: 13px; line-height: 1.5; color: var(--ink-muted); cursor: pointer; }
.consent input { width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--gold); flex: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.done-card {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px;
  border: 1.5px solid var(--gold);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--glow-gold);
  animation: rise 0.6s cubic-bezier(.2, .8, .2, 1);
}
.done-card[hidden] { display: none; }
.done-card:focus { outline: none; }
.done-card img { flex: none; }
.done-title { margin: 0 0 4px; font-family: var(--font-serif); font-weight: 600; font-size: 26px; line-height: 1.2; color: var(--gold-light); }
.done-text { margin: 0 0 10px; color: var(--ink-muted); font-size: 15px; }
.done-text strong { color: var(--ink); font-weight: 500; overflow-wrap: anywhere; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.msg { min-height: 1.5em; margin: 12px 0 0; font-size: 14px; }
.msg.err { color: var(--danger); }
.msg.ok { color: var(--ok); }

/* footer */
.foot { border-top: 1px solid var(--line); padding-top: 18px; font-size: 13px; color: var(--ink-muted); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 24px; }
.foot p { margin: 0; }
.foot a { color: var(--ink-muted); }
.foot a:hover { color: var(--gold-light); }

/* privacy page */
.doc { max-width: 680px; padding-block: 8px 48px; flex: 1; }
.doc h1 { font-size: clamp(32px, 5vw, 44px); }
.doc h2 { font-family: var(--font-serif); font-weight: 600; font-size: 24px; margin: 28px 0 8px; }
.doc p, .doc li { color: var(--ink-muted); }
.doc strong { color: var(--ink); font-weight: 500; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .card.picked .inner { transition: none; }
}