/* SOMA — luminous instrument panel. Dark is the native theme (traces glow on ink); light is "paper".
   No external fonts or assets: everything works offline. */

:root {
  --font: "Inter", "Segoe UI Variable Text", "Segoe UI", ui-sans-serif, system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, "Liberation Mono", monospace;
  --r-sm: 8px; --r: 14px; --r-lg: 20px;
  --ease: cubic-bezier(.2, .7, .2, 1);

  --teal: #2dd4bf; --cyan: #22d3ee; --blue: #60a5fa; --indigo: #818cf8; --violet: #a78bfa;
  --rose: #fb7185; --pink: #f472b6; --amber: #fbbf24; --orange: #fb923c; --green: #34d399; --slate: #94a3b8;

  --m-eeg: #a78bfa; --m-eog: #818cf8; --m-emg: #fbbf24; --m-ecg: #fb7185; --m-ppg: #f472b6;
  --m-resp: #22d3ee; --m-spo2: #34d399; --m-other: #94a3b8; --m-bp: #fb923c; --m-eda: #2dd4bf;

  --ok: #34d399; --warn: #fbbf24; --bad: #fb7185; --idle: #94a3b8;
}

:root[data-theme="dark"] {
  --bg: #070b14; --bg-2: #0b1120;
  --panel: rgba(255, 255, 255, .035); --panel-2: rgba(255, 255, 255, .06); --panel-solid: #0e1526;
  --line: rgba(148, 163, 184, .15); --line-2: rgba(148, 163, 184, .26);
  --text: #e8edf6; --muted: #98a4ba; --faint: #66738b;
  --glow-a: rgba(45, 212, 191, .13); --glow-b: rgba(129, 140, 248, .15); --glow-c: rgba(251, 113, 133, .07);
  --shadow: 0 1px 0 rgba(255, 255, 255, .04) inset, 0 18px 40px -22px rgba(0, 0, 0, .75);
  --grid: rgba(148, 163, 184, .09); --canvas-bg: #080d18;
  --accent: var(--teal); --accent-ink: #04201c;
  --chip: rgba(148, 163, 184, .12);
}

:root[data-theme="light"] {
  --bg: #f4f1ea; --bg-2: #eeeae0;
  --panel: rgba(255, 255, 255, .72); --panel-2: rgba(255, 255, 255, .95); --panel-solid: #ffffff;
  --line: rgba(40, 52, 76, .13); --line-2: rgba(40, 52, 76, .24);
  --text: #18202f; --muted: #556077; --faint: #8590a5;
  --glow-a: rgba(13, 148, 136, .10); --glow-b: rgba(99, 102, 241, .10); --glow-c: rgba(244, 63, 94, .06);
  --shadow: 0 1px 0 rgba(255, 255, 255, .9) inset, 0 14px 32px -20px rgba(30, 41, 59, .35);
  --grid: rgba(40, 52, 76, .08); --canvas-bg: #fbfaf6;
  --accent: #0d9488; --accent-ink: #ffffff;
  --chip: rgba(40, 52, 76, .07);
  --teal: #0d9488; --cyan: #0891b2; --blue: #2563eb; --indigo: #4f46e5; --violet: #7c3aed;
  --rose: #e11d48; --pink: #db2777; --amber: #b45309; --orange: #c2410c; --green: #059669; --slate: #64748b;
  --m-eeg: #7c3aed; --m-eog: #4f46e5; --m-emg: #b45309; --m-ecg: #e11d48; --m-ppg: #db2777;
  --m-resp: #0891b2; --m-spo2: #059669; --m-other: #64748b; --m-bp: #c2410c; --m-eda: #0d9488;
  --ok: #059669; --warn: #b45309; --bad: #e11d48; --idle: #64748b;
}

* { box-sizing: border-box; }
html { color-scheme: dark light; }
html[data-theme="light"] { color-scheme: light; }
html[data-theme="dark"] { color-scheme: dark; }

body {
  margin: 0; min-height: 100vh; font-family: var(--font); font-size: 15px; line-height: 1.55;
  color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(900px 520px at 8% -8%, var(--glow-a), transparent 60%),
    radial-gradient(800px 560px at 96% 4%, var(--glow-b), transparent 60%),
    radial-gradient(700px 500px at 60% 108%, var(--glow-c), transparent 60%);
  background-attachment: fixed;
}
h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: -.02em; line-height: 1.15; }
p { margin: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
button { font: inherit; color: inherit; }
code, .mono { font-family: var(--mono); font-size: .92em; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); }
[hidden] { display: none !important; }
.noscript { padding: 24px; }

/* ---- shell ------------------------------------------------------------------ */
.app { display: grid; grid-template-columns: 252px minmax(0, 1fr); min-height: 100vh; }
.rail {
  position: sticky; top: 0; height: 100vh; padding: 22px 16px 18px; display: flex; flex-direction: column; gap: 6px;
  border-right: 1px solid var(--line); background: linear-gradient(180deg, color-mix(in srgb, var(--bg-2) 70%, transparent), transparent);
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: center; gap: 12px; padding: 4px 10px 22px; }
.brand-mark { width: 38px; height: 38px; flex: none; }
.brand-name { font-weight: 750; letter-spacing: .22em; font-size: 15px; }
.brand-sub { font-size: 11.5px; color: var(--muted); letter-spacing: .01em; margin-top: 2px; }
.nav { display: flex; flex-direction: column; gap: 3px; }
.nav a {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 12px; color: var(--muted);
  font-weight: 560; transition: color .2s, background .2s; position: relative; text-decoration: none;
}
.nav a svg { width: 19px; height: 19px; flex: none; opacity: .85; }
.nav a:hover { color: var(--text); background: var(--panel); }
.nav a[aria-current="page"] { color: var(--text); background: var(--panel-2); box-shadow: var(--shadow); }
.nav a[aria-current="page"]::before {
  content: ""; position: absolute; left: -16px; top: 9px; bottom: 9px; width: 3px; border-radius: 3px;
  background: linear-gradient(180deg, var(--teal), var(--indigo));
}
.nav a[aria-current="page"] svg { color: var(--accent); opacity: 1; }
.rail-foot { margin-top: auto; display: flex; flex-direction: column; gap: 10px; padding: 0 6px; }
.status-pill {
  display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); padding: 8px 12px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--panel);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 color-mix(in srgb, var(--ok) 60%, transparent); animation: pulse 2.4s infinite; flex: none; }
@keyframes pulse { 70% { box-shadow: 0 0 0 7px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
.foot-row { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--faint); }
.icon-btn {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--line); background: var(--panel); color: var(--muted); transition: all .2s;
}
.icon-btn:hover { color: var(--text); border-color: var(--line-2); background: var(--panel-2); }
.icon-btn svg { width: 17px; height: 17px; }

.stage { padding: 34px clamp(20px, 3.4vw, 52px) 80px; min-width: 0; outline: none; }
.view { max-width: 1320px; margin: 0 auto; animation: rise .5s var(--ease) both; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: 26px; }
.eyebrow { font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); font-weight: 650; margin-bottom: 10px; }
.page-head h1 { font-size: clamp(28px, 3.4vw, 40px); }
.lede { color: var(--muted); max-width: 70ch; margin-top: 10px; font-size: 15.5px; }

/* ---- primitives ------------------------------------------------------------- */
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow);
  backdrop-filter: blur(10px); position: relative;
}
.card.pad { padding: 22px; }
.card.hover { transition: transform .25s var(--ease), border-color .25s, background .25s; cursor: pointer; }
.card.hover:hover { transform: translateY(-3px); border-color: var(--line-2); background: var(--panel-2); }
.grid { display: grid; gap: 16px; }
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.auto-grid { grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spread { justify-content: space-between; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.small { font-size: 12.5px; }
.section-title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 38px 0 14px; }
.section-title h2 { font-size: 20px; }
.section-title .hint { color: var(--muted); font-size: 13px; }

.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 560;
  background: var(--chip); color: var(--muted); border: 1px solid transparent; white-space: nowrap;
}
.chip i { width: 7px; height: 7px; border-radius: 50%; background: var(--c, var(--idle)); display: inline-block; }
.chip.tone { color: var(--c); background: color-mix(in srgb, var(--c) 14%, transparent); border-color: color-mix(in srgb, var(--c) 28%, transparent); }
.chip.button { cursor: pointer; transition: all .18s; }
.chip.button:hover { color: var(--text); border-color: var(--line-2); }
.chip.button[aria-pressed="true"] { color: var(--text); background: var(--panel-2); border-color: var(--line-2); }

.verdict {
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 13px; border-radius: 999px; font-weight: 700; font-size: 12px; letter-spacing: .09em;
  color: var(--c); background: color-mix(in srgb, var(--c) 13%, transparent); border: 1px solid color-mix(in srgb, var(--c) 34%, transparent); white-space: nowrap;
}
.verdict svg { width: 14px; height: 14px; }
.verdict.big { font-size: 14px; padding: 8px 18px; }
[data-verdict="SUPPORTED"] { --c: var(--green); }
[data-verdict="NOT SUPPORTED"] { --c: var(--amber); }
[data-verdict="INVALID"] { --c: var(--rose); }
[data-verdict="INCONCLUSIVE"] { --c: var(--slate); }

.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 15px; border-radius: 11px; cursor: pointer; font-weight: 600; font-size: 13.5px;
  border: 1px solid var(--line-2); background: var(--panel-2); color: var(--text); transition: all .2s;
}
.btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.btn.primary { background: linear-gradient(135deg, var(--teal), var(--indigo)); color: #06121a; border-color: transparent; }
.btn.ghost { background: transparent; }
.btn svg { width: 16px; height: 16px; }
.seg { display: inline-flex; padding: 3px; border-radius: 12px; background: var(--panel); border: 1px solid var(--line); gap: 2px; }
.seg button { border: 0; background: transparent; padding: 6px 12px; border-radius: 9px; cursor: pointer; color: var(--muted); font-weight: 600; font-size: 13px; transition: all .18s; }
.seg button:hover { color: var(--text); }
.seg button[aria-pressed="true"], .seg button[aria-selected="true"] { background: var(--panel-2); color: var(--text); box-shadow: var(--shadow); }
input[type="search"], select {
  font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 11px; padding: 9px 12px; outline: none; transition: border-color .2s;
}
input[type="search"]:focus, select:focus { border-color: var(--accent); }
select option { background: var(--panel-solid); color: var(--text); }

/* ---- overview ---------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; border-radius: 28px; border: 1px solid var(--line); min-height: 380px; background: linear-gradient(135deg, color-mix(in srgb, var(--bg-2) 80%, transparent), var(--panel)); box-shadow: var(--shadow); }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-copy { position: relative; padding: clamp(28px, 4.4vw, 56px); max-width: 780px; }
.hero h1 { font-size: clamp(34px, 5vw, 58px); letter-spacing: -.035em; line-height: 1.04; }
.hero h1 em { font-style: normal; background: linear-gradient(100deg, var(--teal), var(--indigo) 55%, var(--rose)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { color: var(--muted); font-size: 17px; margin-top: 18px; max-width: 58ch; }
.hero .row { margin-top: 26px; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 16px; }
.stat { padding: 20px 22px; }
.stat .k { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.stat .v { font-size: 34px; font-weight: 700; letter-spacing: -.03em; margin-top: 8px; line-height: 1.05; }
.stat .v small { font-size: 15px; color: var(--muted); font-weight: 560; letter-spacing: 0; margin-left: 4px; }
.stat .s { color: var(--muted); font-size: 13px; margin-top: 6px; }
.ring { --p: 0; width: 54px; height: 54px; border-radius: 50%; flex: none;
  background: conic-gradient(var(--ok) calc(var(--p) * 1%), color-mix(in srgb, var(--amber) 50%, transparent) 0); display: grid; place-items: center; }
.ring::after { content: ""; width: 42px; height: 42px; border-radius: 50%; background: var(--panel-solid); }

.ledger { display: flex; flex-direction: column; }
.ledger-row { display: grid; grid-template-columns: 158px minmax(0, 1.5fr) minmax(0, 1.1fr) 168px 22px; gap: 18px; align-items: center; padding: 16px 22px; border-top: 1px solid var(--line); cursor: pointer; transition: background .2s; }
.ledger-row:first-child { border-top: 0; }
.ledger-row:hover { background: var(--panel-2); }
.ledger-row .name { font-weight: 620; letter-spacing: -.01em; }
.ledger-row .meta { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.ledger-row .eff { font-size: 13.5px; }
.ledger-row .eff b { font-weight: 650; }
.mini-ci { position: relative; height: 22px; margin-top: 6px; }
.mini-ci svg { width: 100%; height: 22px; overflow: visible; }
.arrow { color: var(--faint); transition: transform .2s, color .2s; }
.ledger-row:hover .arrow { transform: translateX(4px); color: var(--text); }

.honest { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.honest .card { padding: 20px 22px; }
.honest h3 { font-size: 15px; margin: 10px 0 6px; }
.honest p { color: var(--muted); font-size: 13.5px; }
.honest .ico { width: 36px; height: 36px; border-radius: 11px; display: grid; place-items: center; background: color-mix(in srgb, var(--c, var(--accent)) 16%, transparent); color: var(--c, var(--accent)); }
.honest .ico svg { width: 19px; height: 19px; }

/* ---- datasets ---------------------------------------------------------------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; margin-bottom: 20px; }
.toolbar input[type="search"] { min-width: 240px; }
.ds-card { padding: 22px; display: flex; flex-direction: column; gap: 14px; min-height: 250px; }
.ds-card h3 { font-size: 18px; }
.ds-card .cat { color: var(--muted); font-size: 13px; margin-top: 3px; }
.ladder { display: inline-flex; align-items: center; gap: 4px; }
.ladder b { width: 16px; height: 5px; border-radius: 3px; background: var(--chip); }
.ladder b.on { background: var(--c); }
.ladder-label { font-size: 12px; font-weight: 650; color: var(--c); letter-spacing: .02em; }
.ds-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); }
.ds-metrics .m b { display: block; font-size: 17px; font-weight: 680; letter-spacing: -.02em; }
.ds-metrics .m span { color: var(--muted); font-size: 11.5px; letter-spacing: .04em; text-transform: uppercase; }
.bar { height: 6px; border-radius: 4px; background: color-mix(in srgb, var(--amber) 38%, transparent); overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--ok); border-radius: 4px; width: calc(var(--w, 0) * 1%); }
.scope { font-size: 12.5px; color: var(--muted); }

.drawer-wrap { position: fixed; inset: 0; z-index: 60; display: flex; justify-content: flex-end; }
.scrim { position: absolute; inset: 0; background: rgba(2, 6, 14, .55); backdrop-filter: blur(4px); animation: fade .25s both; }
html[data-theme="light"] .scrim { background: rgba(30, 41, 59, .28); }
@keyframes fade { from { opacity: 0; } }
.drawer { position: relative; width: min(780px, 100%); height: 100%; overflow-y: auto; background: var(--panel-solid); border-left: 1px solid var(--line-2); padding: 28px 30px 60px; animation: slide .35s var(--ease) both; }
@keyframes slide { from { transform: translateX(40px); opacity: 0; } }
.drawer h2 { font-size: 26px; }
.tabs { display: flex; gap: 4px; margin: 22px 0 18px; border-bottom: 1px solid var(--line); }
.tabs button { background: none; border: 0; padding: 10px 14px; cursor: pointer; color: var(--muted); font-weight: 600; position: relative; }
.tabs button[aria-selected="true"] { color: var(--text); }
.tabs button[aria-selected="true"]::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: -1px; height: 2px; background: var(--accent); border-radius: 2px; }
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 10px 18px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.list { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 9px; color: var(--text); }
.list li::marker { color: var(--faint); }
table.t { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.t th { text-align: left; color: var(--muted); font-weight: 600; font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; padding: 8px 10px; border-bottom: 1px solid var(--line); }
table.t td { padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.t tr:last-child td { border-bottom: 0; }
table.t td.n, table.t th.n { text-align: right; font-variant-numeric: tabular-nums; }
.recgrid { display: flex; flex-wrap: wrap; gap: 5px; }
.rec { width: 22px; height: 22px; border-radius: 6px; border: 0; cursor: pointer; background: var(--ok); opacity: .85; transition: transform .15s, opacity .15s; position: relative; padding: 0; }
.rec:hover, .rec[aria-pressed="true"] { transform: scale(1.25); opacity: 1; z-index: 2; box-shadow: 0 0 0 2px var(--panel-solid), 0 0 0 4px var(--c, var(--text)); }
.rec.warn { background: var(--amber); } .rec.fail { background: var(--rose); } .rec.unknown { background: var(--idle); }
.codes { display: flex; flex-direction: column; gap: 8px; }
.code-row { display: grid; grid-template-columns: 120px 1fr 96px; white-space: nowrap; gap: 12px; align-items: center; font-size: 13px; }
.code-row .track { height: 8px; background: var(--chip); border-radius: 5px; overflow: hidden; }
.code-row .track i { display: block; height: 100%; border-radius: 5px; background: var(--c, var(--amber)); width: calc(var(--w, 0) * 1%); }

/* ---- explorer ---------------------------------------------------------------- */
.explorer { display: grid; grid-template-columns: 290px minmax(0, 1fr); gap: 16px; align-items: start; }
.picker { padding: 16px; display: flex; flex-direction: column; gap: 14px; position: sticky; top: 18px; max-height: calc(100vh - 36px); overflow: hidden; }
.picker h3 { font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-weight: 650; }
.reclist { overflow-y: auto; display: flex; flex-direction: column; gap: 2px; min-height: 110px; max-height: 190px; margin: 0 -6px; padding: 0 6px; }
.reclist button { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 7px 10px; border-radius: 9px; border: 0; background: transparent; color: var(--muted); cursor: pointer; text-align: left; font-size: 13.5px; }
.reclist button:hover { background: var(--panel-2); color: var(--text); }
.reclist button[aria-current="true"] { background: var(--panel-2); color: var(--text); box-shadow: inset 2px 0 0 var(--accent); }
.chlist { display: flex; flex-direction: column; gap: 3px; overflow-y: auto; }
.ch { display: flex; align-items: center; gap: 10px; padding: 7px 10px; border-radius: 10px; cursor: pointer; border: 1px solid transparent; transition: all .15s; font-size: 13.5px; background: transparent; width: 100%; text-align: left; color: var(--muted); }
.ch:hover { background: var(--panel-2); color: var(--text); }
.ch[aria-pressed="true"] { color: var(--text); background: color-mix(in srgb, var(--c) 11%, transparent); border-color: color-mix(in srgb, var(--c) 30%, transparent); }
.ch i { width: 9px; height: 9px; border-radius: 3px; background: var(--c); flex: none; opacity: .5; }
.ch[aria-pressed="true"] i { opacity: 1; box-shadow: 0 0 10px var(--c); }
.ch .fs { margin-left: auto; color: var(--faint); font-size: 11.5px; font-family: var(--mono); }
.viewer { padding: 0; overflow: hidden; }
.viewer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.viewer-head h2 { font-size: 20px; }
.viewer canvas { display: block; width: 100%; background: var(--canvas-bg); }
.mini-wrap { padding: 12px 20px 0; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 12px 20px 16px; font-size: 12.5px; color: var(--muted); border-top: 1px solid var(--line); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; background: var(--c); }
.hint-bar { padding: 10px 20px; color: var(--faint); font-size: 12.5px; border-top: 1px solid var(--line); display: flex; gap: 18px; flex-wrap: wrap; }
kbd { font-family: var(--mono); font-size: 11.5px; padding: 1px 6px; border-radius: 5px; border: 1px solid var(--line-2); background: var(--panel); color: var(--muted); }
.empty { padding: 60px 24px; text-align: center; color: var(--muted); }
.empty h3 { color: var(--text); margin-bottom: 8px; font-size: 18px; }
.loading { padding: 80px 24px; text-align: center; color: var(--muted); }
.spinner { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--line-2); border-top-color: var(--accent); display: inline-block; animation: spin .8s linear infinite; margin-bottom: 12px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- experiments -------------------------------------------------------------- */
.xp-layout { display: grid; grid-template-columns: 340px minmax(0, 1fr); gap: 16px; align-items: start; }
.xp-list { display: flex; flex-direction: column; gap: 10px; position: sticky; top: 18px; max-height: calc(100vh - 36px); overflow-y: auto; padding-right: 2px; }
.xp-item { padding: 15px 16px; display: flex; flex-direction: column; gap: 9px; cursor: pointer; text-align: left; width: 100%; }
.xp-item[aria-current="true"] { border-color: var(--accent); background: var(--panel-2); }
.xp-item .name { font-weight: 620; font-size: 14px; line-height: 1.3; overflow-wrap: anywhere; }
.xp-detail { padding: 28px 30px; min-width: 0; }
.xp-detail h2 { font-size: 24px; overflow-wrap: anywhere; }
.q { font-size: 17px; line-height: 1.5; letter-spacing: -.005em; margin-top: 18px; max-width: 70ch; }
.hyp { margin-top: 12px; color: var(--muted); max-width: 70ch; border-left: 2px solid var(--line-2); padding-left: 14px; }
.panel-title { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-weight: 650; margin: 30px 0 12px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 22px; }
.fact { padding: 14px 16px; border-radius: 14px; background: var(--panel); border: 1px solid var(--line); }
.fact b { display: block; font-size: 22px; letter-spacing: -.025em; font-weight: 690; }
.fact span { font-size: 12px; color: var(--muted); }
.chart-box { border: 1px solid var(--line); border-radius: 16px; background: var(--canvas-bg); padding: 14px 10px 8px; overflow-x: auto; }
.chart-box svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-box text { font-family: var(--font); fill: var(--muted); font-size: 11px; }
.chart-box .lab { fill: var(--text); font-size: 11.5px; }
.chart-box .grid-line { stroke: var(--grid); }
.chart-box .axis { stroke: var(--line-2); }
.chart-box .pt { transition: r .15s; cursor: crosshair; }
.chart-box .pt:hover { r: 7; }
.gauge { position: relative; height: 12px; border-radius: 8px; background: var(--chip); margin: 30px 0 28px; }
.gauge .fill { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 8px; background: linear-gradient(90deg, var(--teal), var(--indigo)); width: calc(var(--w, 0) * 1%); }
.gauge .tol { position: absolute; top: -9px; bottom: -9px; width: 2px; background: var(--rose); border-radius: 2px; left: calc(var(--x, 0) * 1%); }
.gauge .tol span { position: absolute; top: -22px; left: 50%; transform: translateX(-50%); font-size: 11px; color: var(--rose); white-space: nowrap; font-weight: 650; }
.gauge .val { position: absolute; top: 20px; transform: translateX(-50%); left: calc(var(--v, 0) * 1%); font-size: 11.5px; color: var(--text); white-space: nowrap; font-weight: 650; }
.callout { display: flex; gap: 14px; padding: 16px 18px; border-radius: 14px; border: 1px solid color-mix(in srgb, var(--c) 30%, transparent); background: color-mix(in srgb, var(--c) 8%, transparent); }
.callout svg { width: 20px; height: 20px; color: var(--c); flex: none; margin-top: 2px; }
.callout p { color: var(--text); font-size: 14px; }
.callout.amber { --c: var(--amber); } .callout.teal { --c: var(--teal); } .callout.rose { --c: var(--rose); }
.hash { font-family: var(--mono); font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }

/* ---- method ------------------------------------------------------------------- */
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.step { padding: 22px 24px 22px 70px; position: relative; }
.step::before { counter-increment: s; content: counter(s); position: absolute; left: 22px; top: 20px; width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; font-weight: 700; color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.step h3 { font-size: 16px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 14px; }
.ladder-big { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.ladder-big .card { padding: 18px 18px 20px; border-top: 3px solid var(--c); }
.ladder-big h3 { font-size: 15px; color: var(--c); margin-bottom: 6px; }
.ladder-big p { color: var(--muted); font-size: 13px; }

/* ---- tooltip ------------------------------------------------------------------ */
.tooltip { position: fixed; z-index: 80; pointer-events: none; max-width: 320px; padding: 9px 12px; border-radius: 11px; font-size: 12.5px; line-height: 1.45;
  background: var(--panel-solid); border: 1px solid var(--line-2); box-shadow: 0 16px 36px -14px rgba(0, 0, 0, .6); color: var(--text); }
.tooltip b { font-weight: 650; }
.tooltip .tk { color: var(--muted); }

/* ---- responsive --------------------------------------------------------------- */
@media (max-width: 1180px) {
  .stats, .cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .explorer, .xp-layout { grid-template-columns: 1fr; }
  .picker, .xp-list { position: static; max-height: none; }
  .xp-list { flex-direction: row; overflow-x: auto; padding-bottom: 6px; }
  .xp-item { min-width: 260px; }
  .ledger-row { grid-template-columns: 130px 1fr 140px 20px; }
  .ledger-row .eff-col { display: none; }
}
@media (max-width: 820px) {
  .app { grid-template-columns: 1fr; }
  .rail { position: static; height: auto; flex-direction: row; align-items: center; flex-wrap: wrap; padding: 12px 14px; border-right: 0; border-bottom: 1px solid var(--line); }
  .brand { padding: 0 8px 0 0; } .brand-sub, .status-pill, .rail-foot .foot-row span { display: none; }
  .nav { flex-direction: row; flex-wrap: wrap; } .nav a { padding: 8px 10px; } .nav a span { display: none; }
  .nav a[aria-current="page"]::before { display: none; }
  .rail-foot { margin: 0 0 0 auto; flex-direction: row; }
  .stage { padding: 22px 16px 60px; }
  .cols-2, .cols-3, .honest, .steps, .ladder-big, .stats { grid-template-columns: 1fr; }
  .ledger-row { grid-template-columns: 1fr auto; row-gap: 6px; } .ledger-row > :nth-child(3), .ledger-row .arrow { display: none; }
  .kv { grid-template-columns: 1fr; gap: 2px 0; } .kv dd { margin-bottom: 8px; }
  .xp-detail, .drawer { padding: 20px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body.noscroll { overflow: hidden; }
.sdot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.ledger-row.untrusted .eff, .ledger-row.untrusted .mini-ci { opacity: .45; }
.ledger-row .note { color: var(--rose); font-size: 11.5px; font-weight: 600; }
.xp-detail h2 { margin-top: 18px; }
.xp-detail .callout { margin-top: 18px; }
.xp-detail .seg { margin-top: 4px; }