:root {
  --bg: #f4f5f6;
  --panel: #ffffff;
  --panel-2: #f7f8f9;
  --border: #e4e6ea;
  --border-strong: #d3d7dd;
  --ink: #16181d;
  --ink-2: #3d434d;
  --muted: #8a919c;
  --accent: #2f9c8b;         /* teal */
  --accent-ink: #1f6d61;
  --accent-soft: #eaf5f2;
  --logo-bg: #171b24;
  --logo-ink: #eef1f5;
  --shadow: 0 10px 40px rgba(20,24,31,.14);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Roboto Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --panel: #161a20;
    --panel-2: #1b2028;
    --border: #262c35;
    --border-strong: #333b46;
    --ink: #e9ecf1;
    --ink-2: #c3c9d2;
    --muted: #868e9b;
    --accent: #38b3a0;
    --accent-ink: #7fd6c8;
    --accent-soft: #16302b;
    --logo-bg: #0a0c10;
    --logo-ink: #eef1f5;
    --shadow: 0 10px 40px rgba(0,0,0,.5);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 13px/1.5 var(--mono);
  -webkit-font-smoothing: antialiased;
}

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 14px 24px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 40px; height: 40px; border-radius: 11px; background: var(--logo-bg); color: var(--logo-ink);
  display: flex; align-items: center; justify-content: center; flex: none;
}
.brand-txt { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name { font-weight: 700; letter-spacing: .06em; font-size: 16px; }
.brand-sub { color: var(--muted); font-size: 11px; letter-spacing: .02em; }
.search-wrap { flex: 1; max-width: 360px; }
#search {
  width: 100%; padding: 9px 13px; border-radius: 9px; font-family: var(--mono); font-size: 12.5px;
  border: 1px solid var(--border-strong); background: var(--panel-2); color: var(--ink);
}
#search:focus { outline: none; border-color: var(--accent); background: var(--panel); }

/* ---------- table ---------- */
main { max-width: 1180px; margin: 0 auto; padding: 20px 24px 80px; }
.table-meta { color: var(--muted); font-size: 11.5px; letter-spacing: .02em; margin: 2px 4px 12px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); }

table { width: 100%; border-collapse: collapse; }
thead th {
  text-align: left; padding: 13px 18px; font-size: 10.5px; letter-spacing: .12em; font-weight: 600;
  text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--border);
  white-space: nowrap; position: sticky; top: 0; background: var(--panel);
}
th.num { text-align: right; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--ink-2); }
th .arrow { color: var(--accent); }

tbody td { padding: 15px 18px; border-bottom: 1px solid var(--border); vertical-align: middle; white-space: nowrap; }
tbody tr { cursor: pointer; transition: background .1s; }
tbody tr:hover { background: var(--accent-soft); }
tbody tr.active { background: var(--accent-soft); box-shadow: inset 3px 0 0 var(--accent); }
tbody tr:last-child td { border-bottom: none; }
td.num { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink-2); }
.rank-cell { color: var(--muted); font-variant-numeric: tabular-nums; }
.name-cell { font-weight: 600; color: var(--ink); font-size: 13.5px; }
.pct-cell { font-weight: 600; color: var(--accent-ink); }
.empty { padding: 30px; text-align: center; color: var(--muted); }

/* ---------- drawer ---------- */
.scrim { position: fixed; inset: 0; background: rgba(20,24,31,.28); z-index: 40; }
.scrim[hidden] { display: none; }

.drawer {
  position: fixed; top: 0; right: 0; height: 100vh; width: 46%; max-width: 620px; min-width: 380px;
  background: var(--panel); border-left: 1px solid var(--border); box-shadow: var(--shadow);
  z-index: 50; display: flex; flex-direction: column;
}
.drawer[hidden] { display: none; }
@media (max-width: 640px) { .drawer { width: 100%; max-width: none; min-width: 0; } }

.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px 0;
}
.drawer-eyebrow { color: var(--muted); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }
.close {
  width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--border-strong);
  background: var(--panel); color: var(--ink-2); display: flex; align-items: center; justify-content: center;
  cursor: pointer; flex: none;
}
.close:hover { background: var(--panel-2); color: var(--ink); }
.drawer-title { margin: 6px 24px 0; font-size: 22px; font-weight: 700; letter-spacing: -.01em; word-break: break-word; }

.drawer-body { padding: 20px 24px 40px; overflow-y: auto; }

/* hero card */
.hero-card {
  display: flex; align-items: center; gap: 22px;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px;
}
.gauge { position: relative; width: 120px; height: 120px; flex: none; }
.gauge-track { fill: none; stroke: var(--border-strong); stroke-width: 9; }
.gauge-arc { fill: none; stroke: var(--accent); stroke-width: 9; stroke-linecap: round;
  transition: stroke-dashoffset .5s ease; }
.gauge-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.gauge-num { font-size: 27px; font-weight: 700; line-height: 1; }
.gauge-lbl { font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }
.hero-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; flex: 1; }
.fact { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.fact.wide { grid-column: 1 / -1; }
.fact-k { font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.fact-v { font-size: 15px; font-weight: 600; word-break: break-word; }

/* sections */
.sect { margin-top: 26px; }
.sect h3 { margin: 0 0 12px; font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.sect-note { color: var(--accent-ink); background: var(--accent-soft); border-radius: 5px; padding: 2px 7px; margin-left: 6px; letter-spacing: .04em; font-weight: 600; }

.kv { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 11px; overflow: hidden; }
.cell { background: var(--panel); padding: 12px 15px; display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.cell .k { font-size: 10px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.cell .k.sub { text-transform: none; letter-spacing: 0; margin-top: -1px; }
.cell .v { font-size: 14.5px; font-weight: 600; word-break: break-word; }
.mono { font-family: var(--mono); }

/* folds */
.folds { display: flex; flex-direction: column; gap: 8px; }
.fold { display: grid; grid-template-columns: 54px 1fr 46px; align-items: center; gap: 12px; }
.fold-lbl { font-size: 11px; color: var(--muted); }
.bar { height: 9px; border-radius: 5px; background: var(--panel-2); border: 1px solid var(--border); overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); }
.fold-val { font-size: 12px; text-align: right; font-variant-numeric: tabular-nums; color: var(--ink-2); }

/* structure */
.struct-tile {
  background: #ffffff; border: 1px solid var(--border); border-radius: 14px;
  min-height: 360px; display: flex; align-items: center; justify-content: center; position: relative; padding: 14px;
}
.struct-svg { width: 100%; display: flex; align-items: center; justify-content: center; }
.struct-svg svg { max-width: 100%; height: auto; display: block; }
.struct-loading { position: absolute; color: #9aa0aa; font-size: 12px; }

/* smiles */
.smiles-box { display: flex; gap: 10px; align-items: stretch; }
.smiles-box code {
  flex: 1; background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 11px 13px; font-size: 11.5px; word-break: break-all; font-family: var(--mono); color: var(--ink-2);
}
.copy-btn {
  background: var(--accent); color: #fff; border: none; border-radius: 10px; padding: 0 18px;
  font-size: 12px; font-family: var(--mono); font-weight: 600; cursor: pointer; white-space: nowrap;
}
.copy-btn:hover { background: var(--accent-ink); }
.copy-btn.copied { background: var(--accent-ink); }