@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:wght@400;700&family=Sora:wght@400;500;600;700;800&display=swap');

[hidden] { display: none !important; }

:root {
  --coal: #0e0f12;
  --ash: #1a1c21;
  --sand: #fff8dd;
  --gold: #f4d452;
  --line: #3b3f4b;
  --steel: #cfd4df;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--sand);
  font-family: 'Sora', sans-serif;
  background:
    linear-gradient(135deg, #0d0f14 0%, #101318 60%, #0a0b10 100%);
}

.stamp-head {
  position: sticky;
  top: 0;
  z-index: 55;
  padding: 0.8rem clamp(1rem, 4vw, 3rem);
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(14, 15, 18, 0.95);
  border-bottom: 2px solid #363a45;
}

.stamp-brand img { width: clamp(170px, 30vw, 250px); display: block; }

.stamp-toggle {
  margin-left: auto;
  border: 2px solid var(--gold);
  background: transparent;
  color: var(--gold);
  border-radius: 8px;
  padding: 0.38rem 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stamp-nav {
  display: flex;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.stamp-nav a {
  text-decoration: none;
  color: var(--sand);
  border: 1px solid #3a3f4d;
  padding: 0.38rem 0.6rem;
  border-radius: 7px;
  font-size: 0.9rem;
  font-weight: 600;
}

.stamp-nav a:hover,
.stamp-nav a[aria-current='page'] {
  border-color: var(--gold);
  color: #ffe77a;
}

.wrap-v {
  width: min(1480px, 96vw);
  margin: 1.2rem auto 2rem;
  display: grid;
  gap: 1rem;
}

.grid-v {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 1rem;
}

.block-v,
.tile-v,
.notice-v,
.engine-v,
.chunk-v article,
.doc-v {
  background: var(--ash);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.block-v { padding: 1.25rem; position: relative; overflow: hidden; }
.block-v::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -100px;
  width: 220px;
  height: 220px;
  transform: rotate(30deg);
  background: rgba(244, 212, 82, 0.1);
}

.block-v h1 {
  margin: 0;
  font-size: clamp(1.9rem, 5vw, 3.3rem);
  line-height: 1.06;
}

.block-v p { color: #d4d8e0; max-width: 66ch; line-height: 1.62; }

.badges-v { display: flex; flex-wrap: wrap; gap: 0.52rem; }
.badges-v span {
  border: 1px solid #846f24;
  border-radius: 999px;
  padding: 0.3rem 0.6rem;
  background: rgba(244, 212, 82, 0.14);
  font-size: 0.82rem;
  font-weight: 700;
}

.tile-v {
  padding: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.tile-v div {
  padding: 0.7rem;
  border: 1px solid #404450;
  border-radius: 8px;
  background: #13151b;
}
.tile-v strong { display: block; color: #ffe77a; font-size: 1.18rem; }

.notice-v {
  padding: 0.85rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.notice-v p {
  margin: 0;
  padding: 0.58rem 0.68rem;
  border-left: 4px solid var(--gold);
  background: #13151b;
  min-width: 220px;
  flex: 1;
}

.engine-v { padding: 1rem; }
.engine-v h2 {
  margin: 0 0 0.65rem;
  font-family: 'Libre Baskerville', serif;
  font-size: clamp(1.4rem, 3.5vw, 2.1rem);
}

.engine-v iframe {
  width: 100%;
  min-height: 550px;
  border: 0;
  border-radius: 8px;
  background: #000;
}

.chunk-v {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}
.chunk-v article { padding: 0.95rem; }
.chunk-v h3 {
  margin-top: 0;
  font-family: 'Libre Baskerville', serif;
  color: #ffe783;
}
.chunk-v p { margin-bottom: 0; color: #cfd5df; }

.doc-v {
  width: min(1120px, 96vw);
  margin: 1rem auto;
  padding: 1.2rem;
}

.doc-v h1 {
  margin-top: 0;
  font-size: clamp(1.7rem, 4.5vw, 2.7rem);
}

.doc-v h2 { margin: 1rem 0 0.45rem; font-family: 'Libre Baskerville', serif; }
.doc-v p,
.doc-v li { line-height: 1.62; color: #d5dae3; }

footer {
  margin-top: 1rem;
  padding: 1rem clamp(1rem, 4vw, 2.5rem) 1.6rem;
  border-top: 2px solid #3b3f4b;
  background: #0c0d11;
}

footer p { margin: 0 0 0.45rem; color: #d6dae2; }
.help-v { display: flex; flex-wrap: wrap; gap: 1rem; }
.help-v a { color: #ffe783; }

.guard-v {
  position: fixed;
  inset: 0;
  z-index: 96;
  display: grid;
  place-items: center;
  background: rgba(9, 10, 12, 0.95);
  padding: 1rem;
}

.guard-box {
  width: min(470px, 95vw);
  border: 1px solid #63561f;
  border-radius: 10px;
  background: #181a20;
  padding: 1.1rem;
}

.guard-buttons { display: flex; gap: 0.6rem; }
.guard-buttons button {
  flex: 1;
  border: 0;
  border-radius: 8px;
  padding: 0.64rem;
  font-weight: 800;
}
#v-ok { background: #f4d452; color: #121316; }
#v-out { background: #3a404c; color: #f4f7fb; }

@media (max-width: 940px) {
  .grid-v { grid-template-columns: 1fr; }
  .chunk-v { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .stamp-head { flex-wrap: wrap; }
  .stamp-nav {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    margin-top: 0.4rem;
  }
  .stamp-nav.open-v { display: flex; }
  .chunk-v { grid-template-columns: 1fr; }
  .engine-v iframe { min-height: 420px; }
}