:root {
  color-scheme: dark;
  --bg: #0f1115; --card: #15171c; --card2: #1b1e25; --line: #262a33;
  --text: #e6e8ec; --dim: #9aa1ad; --acc: #7dd3fc;
  --diamond: #a78bfa; --gold: #facc15; --silver: #94a3b8; --bronze: #b45309;
  --open: #9aa1ad; --evidence: #60a5fa; --concluded: #4ade80; --blocked: #f87171;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.55 system-ui, "Pretendard", "Malgun Gothic", sans-serif; }
button, select, input { font: inherit; color: inherit; }
a { color: var(--acc); }

.top { display: flex; align-items: center; gap: 16px; padding: 10px 16px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 5; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 17px; }
.mock { font-size: 11px; font-weight: 500; color: var(--dim); border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; margin-left: 6px; }
.tabs { display: flex; gap: 4px; }
.tabs button, .seg button { background: none; border: 1px solid var(--line); border-radius: 8px; padding: 5px 12px; cursor: pointer; color: var(--dim); }
.tabs button.on, .seg button.on { background: var(--card2); color: var(--text); border-color: #3a404c; }

.layout { display: grid; grid-template-columns: minmax(0, 1fr) 380px; min-height: calc(100vh - 54px); }
.stage { padding: 14px 16px 40px; min-width: 0; }
.panel { border-left: 1px solid var(--line); background: var(--card); padding: 16px; overflow-y: auto; max-height: calc(100vh - 54px); position: sticky; top: 54px; }
.panel .empty { color: var(--dim); margin-top: 40px; text-align: center; }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; margin-bottom: 8px; }
.toolbar label { color: var(--dim); display: flex; gap: 6px; align-items: center; }
.toolbar select { background: var(--card2); border: 1px solid var(--line); border-radius: 8px; padding: 4px 8px; }
.seg { display: flex; gap: 4px; }
.chk input { accent-color: var(--acc); }
.hint, .foot { color: var(--dim); font-size: 12.5px; margin: 4px 0 8px; }
.chart { width: 100%; height: min(72vh, 680px); background: var(--card); border: 1px solid var(--line); border-radius: 10px; }

.panel h2 { font-size: 18px; margin: 0 0 2px; }
.panel h3 { font-size: 13px; color: var(--dim); font-weight: 600; margin: 18px 0 6px; text-transform: none; }
.panel .sub { color: var(--dim); font-size: 12.5px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; font-size: 13px; }
.kv dt { color: var(--dim); }
.kv dd { margin: 0; }
.bars { display: flex; height: 10px; border-radius: 4px; overflow: hidden; margin: 4px 0; background: var(--card2); }
.bars span { display: block; }
.legend { display: flex; gap: 10px; font-size: 12px; color: var(--dim); flex-wrap: wrap; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 4px; }
.cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cmp > div { background: var(--card2); border-radius: 8px; padding: 8px 10px; }
.cmp b { font-size: 18px; display: block; }
.games { list-style: none; margin: 0; padding: 0; font-size: 13px; }
.games li { display: grid; grid-template-columns: 1fr auto; gap: 8px; padding: 5px 0; border-bottom: 1px solid var(--line); }
.games .meta { color: var(--dim); font-size: 12px; }
.tier { font-size: 11px; padding: 0 6px; border-radius: 999px; border: 1px solid currentColor; }
.tier.diamond { color: var(--diamond); } .tier.gold { color: var(--gold); } .tier.silver { color: var(--silver); } .tier.bronze { color: var(--bronze); }
.spark { width: 100%; height: 120px; }
.src { font-size: 12px; word-break: break-all; }

.calc { margin-top: 14px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.calc h3 { margin: 0 0 10px; font-size: 15px; }
.calc .inputs { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px 14px; }
.calc label { display: grid; gap: 2px; font-size: 12.5px; color: var(--dim); }
.calc input[type=range] { width: 100%; accent-color: var(--acc); }
.calc .val { color: var(--text); font-weight: 600; }
.calc .out { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; margin-top: 14px; }
.calc .out div { background: var(--card2); border-radius: 8px; padding: 8px 10px; }
.calc .out b { font-size: 20px; display: block; }
.calc .note { color: var(--dim); font-size: 12px; margin-top: 10px; }

.tree ul { list-style: none; margin: 0; padding-left: 22px; border-left: 1px dashed var(--line); }
.tree > ul { padding-left: 0; border: 0; }
.node { display: flex; gap: 10px; align-items: center; padding: 7px 10px; margin: 4px 0; background: var(--card); border: 1px solid var(--line); border-radius: 8px; cursor: pointer; }
.node:hover, .node.sel { border-color: #3a404c; background: var(--card2); }
.node .id { color: var(--dim); font-size: 12px; min-width: 24px; }
.node .t { flex: 1; }
.conf { letter-spacing: 1px; color: var(--acc); font-size: 12px; }
.st { font-size: 11px; padding: 0 7px; border-radius: 999px; border: 1px solid currentColor; white-space: nowrap; }
.st.open { color: var(--open); } .st.evidence { color: var(--evidence); } .st.concluded { color: var(--concluded); } .st.blocked { color: var(--blocked); }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .panel { position: static; max-height: none; border-left: 0; border-top: 1px solid var(--line); }
  .chart { height: 70vh; }
}
.tabs .navlink { border: 1px solid var(--line); border-radius: 8px; padding: 5px 12px; color: var(--dim); text-decoration: none; }
.tabs .navlink:hover { color: var(--text); background: var(--card2); }