body[data-scheme="b"] {
  --night: #141e22;
  --panel: #1e2b30;
  --paper: #f1eee4;
  --brass: #dba965;
  --foam: #8ab6ad;
  --line: #3f5054;
  background:
    radial-gradient(circle at 80% 0%, rgba(219, 169, 101, 0.08), transparent 32%),
    linear-gradient(180deg, #10181c, var(--night));
  color: var(--paper);
}

body[data-scheme="b"] .site-header,
body[data-scheme="b"] .site-footer {
  border-color: var(--line);
}

body[data-scheme="b"] .brand-kicker {
  color: var(--brass);
}

body[data-scheme="b"] .volume-dock button,
body[data-scheme="b"] .quiz-block button,
body[data-scheme="b"] .source-block button,
body[data-scheme="b"] .ghost-btn,
body[data-scheme="b"] .reset-btn,
body[data-scheme="b"] .seal,
body[data-scheme="b"] .decision button {
  border-color: var(--brass);
  background: var(--panel);
  color: var(--paper);
}

body[data-scheme="b"] .primary-btn,
body[data-scheme="b"] .volume-dock button[aria-pressed="true"] {
  background: #24353b;
  border-color: var(--brass);
  color: var(--brass);
}

body[data-scheme="b"] .scheme-nav a[aria-current="page"] {
  color: var(--brass);
}

body[data-scheme="b"] .desk {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: 28px;
  padding: 24px 0 12px;
}

body[data-scheme="b"] .case-no {
  margin: 0 0 8px;
  color: var(--brass);
  letter-spacing: 0.18em;
  font-size: 13px;
}

body[data-scheme="b"] h1 {
  margin: 0 0 12px;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.2;
}

body[data-scheme="b"] .dossier {
  position: relative;
  height: 280px;
}

body[data-scheme="b"] .sheet {
  position: absolute;
  width: min(100%, 380px);
  background: var(--paper);
  color: #1b2422;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

body[data-scheme="b"] .sheet-back {
  height: 72px;
  padding: 0;
}

body[data-scheme="b"] .sheet-asset {
  top: 18px;
  left: 0;
  transform: rotate(-4deg);
}

body[data-scheme="b"] .sheet-price {
  top: 8px;
  left: 88px;
  transform: rotate(3deg);
}

body[data-scheme="b"] .tab {
  display: inline-block;
  margin: 10px 0 0 14px;
  padding: 4px 10px;
  background: #e7d9b6;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

body[data-scheme="b"] .sheet-front {
  top: 78px;
  left: 28px;
  min-height: 168px;
  padding: 16px 18px;
  background: #f7f1de;
}

body[data-scheme="b"] .file-no {
  margin: 0 0 8px;
  color: #6a4b24;
  font-size: 12px;
  letter-spacing: 0.12em;
}

body[data-scheme="b"] .seals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0 28px;
}

body[data-scheme="b"] .seal {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 4px;
  height: 88px;
  min-height: 88px;
  border-left: 4px solid var(--brass);
  text-align: left;
}

body[data-scheme="b"] .seal[aria-expanded="true"] {
  border-color: var(--brass);
  color: var(--brass);
}

body[data-scheme="b"] .seal .seal-state {
  font-size: 13px;
  color: var(--foam);
}

body[data-scheme="b"] .evidence {
  display: none;
  padding: 18px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  margin-bottom: 24px;
}

body[data-scheme="b"] .evidence.is-open {
  display: block;
}

body[data-scheme="b"] .bars {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

body[data-scheme="b"] .bar-row {
  display: grid;
  grid-template-columns: 96px 1fr 88px;
  gap: 8px;
  align-items: center;
  font-variant-numeric: tabular-nums;
}

body[data-scheme="b"] .bar-track {
  height: 14px;
  background: #162126;
}

body[data-scheme="b"] .bar-fill {
  height: 14px;
  background: var(--foam);
}

body[data-scheme="b"] .bar-fill.is-loss {
  background: #c16b5a;
}

body[data-scheme="b"] .decision {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

body[data-scheme="b"] .decision button {
  height: 56px;
  min-height: 56px;
}

body[data-scheme="b"] .primary-btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

body[data-scheme="b"] .decision button[aria-pressed="true"] {
  border-color: var(--brass);
  color: var(--brass);
}

body[data-scheme="b"] .notice,
body[data-scheme="b"] .feedback,
body[data-scheme="b"] .history {
  min-height: 2.5em;
  margin: 12px 0;
}

body[data-scheme="b"] .history[hidden],
body[data-scheme="b"] .feedback[hidden] {
  display: none;
}

body[data-scheme="b"] .quiz-block button.is-correct {
  background: #243f3a;
}

body[data-scheme="b"] .quiz-block button.is-miss {
  background: #3a2a28;
}

@media (max-width: 900px) {
  body[data-scheme="b"] .desk,
  body[data-scheme="b"] .seals,
  body[data-scheme="b"] .decision,
  body[data-scheme="b"] .bar-row {
    grid-template-columns: 1fr;
  }

  body[data-scheme="b"] .dossier {
    height: 220px;
  }

  body[data-scheme="b"] .sheet {
    width: calc(100% - 24px);
  }

  body[data-scheme="b"] .sheet-front {
    top: 64px;
    min-height: 140px;
  }
}

@media (max-width: 390px) {
  body[data-scheme="b"] h1 {
    font-size: 32px;
  }
}