:root {
  --forge-bg: #1a1410;
  --forge-panel: #2b211a;
  --forge-hot: #ff7e3f;
  --forge-amber: #f5ba5d;
  --forge-text: #f7efe6;
  --forge-muted: #d7c2af;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Assistant', sans-serif;
  color: var(--forge-text);
  background: repeating-linear-gradient(135deg, #1a1410 0, #1a1410 14px, #201912 14px, #201912 28px);
}
body.forge-lock { overflow: hidden; }
.forge-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1rem;
  border-bottom: 3px solid var(--forge-hot);
  background: #130e0b;
  position: sticky;
  top: 0;
  z-index: 50;
}
.forge-mark {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--forge-text);
}
.forge-mark img { width: 48px; height: 40px; }
.forge-mark span {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 0.08em;
  font-size: 2rem;
}
.forge-burger {
  margin-left: auto;
  font-size: 1.25rem;
  border: 2px solid var(--forge-hot);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
  color: var(--forge-amber);
  background: transparent;
  cursor: pointer;
}
.forge-links {
  width: 100%;
  display: none;
  flex-direction: column;
  gap: 0.45rem;
}
.forge-links.is-open { display: flex; }
.forge-links a {
  color: var(--forge-muted);
  text-decoration: none;
  border-left: 4px solid transparent;
  padding: 0.45rem 0.5rem;
  background: rgba(255, 255, 255, 0.03);
}
.forge-links a:hover,
.forge-links a:focus-visible {
  border-left-color: var(--forge-hot);
  color: var(--forge-text);
}
.forge-main {
  padding: 1rem;
  display: grid;
  gap: 1rem;
}
.forge-intro,
.forge-ledger,
.forge-engine,
.forge-notes article,
.forge-doc,
.forge-playpage {
  border: 2px solid #4a3528;
  background: linear-gradient(180deg, #2b211a, #201811);
  box-shadow: inset 0 0 0 1px rgba(245, 186, 93, 0.15);
}
.forge-intro,
.forge-ledger,
.forge-engine,
.forge-doc,
.forge-playpage { padding: 1rem; }
.forge-intro h1,
.forge-playpage h1,
.forge-doc h1 {
  margin: 0 0 0.6rem;
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 7vw, 3.6rem);
  letter-spacing: 0.04em;
}
.forge-ledger h2,
.forge-engine h2,
.forge-notes h2 { margin-top: 0; font-family: 'Bebas Neue', sans-serif; letter-spacing: 0.04em; }
.forge-ledger div { display: grid; gap: 0.4rem; }
.forge-engine iframe,
.forge-playpage iframe {
  width: 100%;
  border: 0;
  min-height: 460px;
  background: #000;
}
.forge-notes { display: grid; gap: 1rem; }
.forge-notes article { padding: 1rem; }
.forge-playpage {
  margin: 1rem;
  min-height: calc(100vh - 240px);
}
.forge-doc {
  margin: 1rem;
  line-height: 1.7;
  color: var(--forge-muted);
}
.forge-footer {
  margin-top: 1rem;
  padding: 1rem;
  border-top: 3px solid var(--forge-hot);
  background: #120d0a;
  color: var(--forge-muted);
}
.forge-help {
  margin-top: 0.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.forge-help a { color: var(--forge-amber); text-decoration: none; }
.forge-age {
  position: fixed;
  inset: 0;
  background: rgba(15, 10, 7, 0.92);
  display: grid;
  place-items: center;
  padding: 1rem;
  z-index: 70;
}
.forge-age[hidden] { display: none; }
.forge-age-box {
  width: min(480px, 100%);
  padding: 1.2rem;
  background: #2b211a;
  border: 2px solid var(--forge-hot);
}
.forge-age-box h2 {
  margin-top: 0;
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 0.05em;
}
.forge-age-box div {
  margin-top: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.forge-age-box button {
  border: 0;
  padding: 0.65rem 0.95rem;
  font-weight: 700;
  cursor: pointer;
}
#forge-yes { background: var(--forge-hot); color: #180f09; }
#forge-no { background: #4a3528; color: var(--forge-text); }
@media (min-width: 900px) {
  .forge-burger { display: none; }
  .forge-links {
    width: auto;
    display: flex;
    flex-direction: row;
    margin-left: auto;
  }
  .forge-links a {
    border-left: 0;
    border-bottom: 3px solid transparent;
    padding-inline: 0.8rem;
  }
  .forge-links a:hover,
  .forge-links a:focus-visible { border-bottom-color: var(--forge-hot); }
  .forge-main {
    grid-template-columns: 1.2fr 0.8fr;
    grid-template-areas:
      'intro ledger'
      'engine engine'
      'notes notes';
    width: min(1380px, 100% - 2rem);
    margin: 0 auto;
  }
  .forge-intro { grid-area: intro; }
  .forge-ledger { grid-area: ledger; }
  .forge-engine { grid-area: engine; }
  .forge-notes {
    grid-area: notes;
    grid-template-columns: 1fr 1fr;
  }
  .forge-playpage,
  .forge-doc {
    width: min(1320px, 100% - 2rem);
    margin: 1.2rem auto;
  }
}