:root {
  --bg: #0e1116;
  --bg-panel: #161b22;
  --fg: #e6edf3;
  --muted: #9aa7b4;
  --accent: #58a6ff;
  --accent-2: #7ee787;
  --accent-3: #ffa657;
  --accent-4: #d2a8ff;
  --border: #2d333b;
  --red: #ff7b72;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

.deck-shell { overflow-x: hidden; }
.deck-frame {
  width: 100%;
  height: 100vh;
  height: 100dvh;
  border: 0;
  display: block;
}

.slide {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6vh 8vw;
  position: relative;
}
.kicker {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: clamp(12px, 1.2vw, 15px);
  font-weight: 600;
  margin-bottom: 0.8rem;
}
h1 { font-size: clamp(34px, 5.5vw, 72px); line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 4vw, 52px); line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 2.2rem; }
h3 { font-size: clamp(17px, 1.6vw, 22px); margin-bottom: 0.6rem; }
p.lede { font-size: clamp(18px, 2vw, 26px); color: var(--muted); max-width: 60ch; }
ul.big {
  list-style: none;
  font-size: clamp(17px, 1.8vw, 24px);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  max-width: 70ch;
}
ul.big li { padding-left: 1.6rem; position: relative; }
ul.big li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }
ul.big li strong { color: var(--fg); }
ul.big li .sub { display: block; font-size: 0.78em; color: var(--muted); margin-top: 0.15rem; }
.grid { display: grid; gap: 1rem; }
.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1.4rem;
}
.card h3 { display: flex; align-items: center; gap: 0.5rem; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.7rem; }
.chip {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.18rem 0.7rem;
  font-size: clamp(12px, 1.1vw, 15px);
  color: var(--fg);
  white-space: nowrap;
}
.chip.open { border-color: var(--accent-2); }
.chip.cn { border-color: var(--accent-3); }
.note { color: var(--muted); font-size: clamp(13px, 1.2vw, 16px); margin-top: 1.4rem; max-width: 75ch; }
.legend { display: flex; gap: 1.4rem; margin-top: 1rem; font-size: clamp(12px, 1.1vw, 15px); color: var(--muted); flex-wrap: wrap; }
.legend span { display: flex; align-items: center; gap: 0.4rem; }
.swatch { width: 12px; height: 12px; border-radius: 3px; border: 1.5px solid; display: inline-block; }
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin: 1.6rem 0; }
.stat { background: var(--bg-panel); border: 1px solid var(--border); border-radius: 12px; padding: 1.1rem 1.3rem; }
.stat .num { font-size: clamp(26px, 3vw, 42px); font-weight: 700; color: var(--accent); letter-spacing: -0.02em; }
.stat .lbl { color: var(--muted); font-size: clamp(12px, 1.1vw, 15px); margin-top: 0.2rem; }
.flow { display: flex; align-items: stretch; gap: 0.6rem; flex-wrap: wrap; margin: 1.2rem 0; }
.flow .card { flex: 1; min-width: 160px; text-align: center; }
.flow .arrow { align-self: center; color: var(--muted); font-size: 1.6rem; }
.counter {
  position: fixed; bottom: 14px; right: 18px;
  color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums;
  background: rgba(14,17,22,0.7); padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border);
  z-index: 10;
}
.hint { position: fixed; bottom: 14px; left: 18px; color: var(--muted); font-size: 13px; opacity: 0.8; z-index: 10; }
.accent { color: var(--accent); }
.green { color: var(--accent-2); }
.orange { color: var(--accent-3); }
.purple { color: var(--accent-4); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: start; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }
em.q { color: var(--accent-2); font-style: normal; font-weight: 600; }