/* brainssl dashboard
 * Dark-first, like an imaging reading room; a light theme is one toggle away.
 * Chart colours are validated for colour-vision deficiency on both surfaces.
 */

:root {
  color-scheme: dark;
  --bg: #0a0c10;
  --bg-glow: rgba(57, 135, 229, 0.10);
  --surface-1: #12151c;
  --surface-2: #171b24;
  --surface-3: #1e2330;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text-primary: #f2f4f8;
  --text-secondary: #b6bdcc;
  --text-muted: #7d8696;
  --grid: #232834;
  --axis: #3a4252;
  --focus: #6ab0ff;

  /* categorical, fixed order: ours, main baseline, then the rest */
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #9085e9;
  --muted-series: #4b5262;

  /* diverging, for connectome weights */
  --div-neg: #3987e5;
  --div-mid: #383835;
  --div-pos: #e66767;

  /* tumour labels, BraTS colour convention */
  --label-oedema: #4ade80;
  --label-core: #ef4444;
  --label-enhancing: #facc15;

  --good: #0ca30c;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 12px 40px rgba(0, 0, 0, 0.35);
  --font-sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", monospace;
  --rail: 232px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f5f8;
  --bg-glow: rgba(42, 120, 214, 0.08);
  --surface-1: #fbfbfd;
  --surface-2: #ffffff;
  --surface-3: #eef0f5;
  --border: rgba(10, 12, 16, 0.09);
  --border-strong: rgba(10, 12, 16, 0.18);
  --text-primary: #0b0d12;
  --text-secondary: #4a5161;
  --text-muted: #7a8292;
  --grid: #e6e8ee;
  --axis: #c3c8d2;
  --focus: #2a78d6;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --series-5: #e87ba4;
  --series-6: #4a3aa7;
  --muted-series: #b4b9c4;
  --div-neg: #2a78d6;
  --div-mid: #f0efec;
  --div-pos: #e34948;
  --shadow: 0 1px 2px rgba(10, 12, 16, 0.04), 0 10px 30px rgba(10, 12, 16, 0.06);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background:
    radial-gradient(1200px 600px at 75% -10%, var(--bg-glow), transparent 70%),
    var(--bg);
  color: var(--text-primary);
  font: 15px/1.55 var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
code, .mono { font-family: var(--font-mono); font-size: 0.92em; }

/* ------------------------------------------------------------------ shell */

.app { display: grid; grid-template-columns: var(--rail) 1fr; min-height: 100vh; }

.rail {
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: 4px;
  padding: 22px 14px; border-right: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-1) 72%, transparent);
  backdrop-filter: blur(12px);
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 22px; text-decoration: none; }
.brand-mark { width: 30px; height: 30px; }
.brand-name { font-weight: 600; letter-spacing: 0.2px; font-size: 17px; }
.brand-sub { display: block; color: var(--text-muted); font-size: 11.5px; font-weight: 400; letter-spacing: 0.3px; }

.nav-label { color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: 1.1px; padding: 14px 10px 6px; }
.nav a {
  display: flex; align-items: center; gap: 11px; padding: 8px 10px; border-radius: 9px;
  text-decoration: none; color: var(--text-secondary); font-weight: 500; font-size: 14px;
}
.nav a svg { width: 18px; height: 18px; flex: none; opacity: 0.85; }
.nav a:hover { background: var(--surface-3); color: var(--text-primary); }
.nav a[aria-current="page"] { background: color-mix(in srgb, var(--series-1) 18%, transparent); color: var(--text-primary); }
.nav a[aria-current="page"] svg { color: var(--series-1); opacity: 1; }

.rail-foot { margin-top: auto; display: flex; flex-direction: column; gap: 10px; padding: 10px; }
.rail-links { display: flex; gap: 8px; flex-wrap: wrap; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 34px; min-width: 34px; padding: 0 10px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--surface-2); cursor: pointer; text-decoration: none;
  color: var(--text-secondary); font-size: 13px;
}
.icon-btn:hover { border-color: var(--border-strong); color: var(--text-primary); }
.icon-btn svg { width: 16px; height: 16px; }

main { min-width: 0; padding: 30px clamp(18px, 3vw, 44px) 80px; }
.view { display: none; animation: rise 0.35s ease both; }
.view.active { display: block; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .view { animation: none; } }

.view-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 22px; flex-wrap: wrap; }
.eyebrow { color: var(--series-1); font: 600 12px/1 var(--font-mono); letter-spacing: 1.2px; text-transform: uppercase; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.2px; }
h1 { font-size: clamp(26px, 3.2vw, 38px); line-height: 1.15; margin-top: 8px; }
h2 { font-size: 21px; margin-top: 8px; }
h3 { font-size: 15px; }
.lede { color: var(--text-secondary); max-width: 760px; margin: 10px 0 0; font-size: 15.5px; }
.muted { color: var(--text-muted); }
.small { font-size: 13px; }

/* ------------------------------------------------------------------ cards and grids */

.grid { display: grid; gap: 18px; }
.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g-main { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); }
.g-viewer { grid-template-columns: 250px minmax(0, 1fr) 300px; }
.span-2 { grid-column: span 2; }

.card {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 20px; min-width: 0;
}
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.card-head p { margin: 4px 0 0; color: var(--text-muted); font-size: 13px; }
.card.flush { padding: 0; overflow: hidden; }

/* stat tiles */
.stat .label { color: var(--text-secondary); font-size: 13px; }
.stat .value { font-size: 38px; font-weight: 600; letter-spacing: -0.6px; line-height: 1.1; margin-top: 6px; }
.stat .value small { font-size: 15px; color: var(--text-muted); font-weight: 500; margin-left: 4px; }
.stat .delta { margin-top: 8px; display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-secondary); }
.delta .up { color: var(--good); font-weight: 600; }
.delta .down { color: var(--text-secondary); font-weight: 600; }
.stat .foot { color: var(--text-muted); font-size: 12.5px; margin-top: 10px; }

/* hero */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 26px; align-items: stretch; margin-bottom: 18px; }
.hero h1 { font-size: clamp(28px, 3.2vw, 40px); }
.hero .lede { font-size: 16.5px; }
.hero-actions { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: 10px;
  border: 1px solid var(--border-strong); background: var(--surface-2); text-decoration: none; cursor: pointer; font-weight: 500;
}
.btn:hover { border-color: var(--text-muted); }
.btn.primary { background: var(--series-1); border-color: transparent; color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn svg { width: 16px; height: 16px; }
.hero-visual { position: relative; min-height: 380px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); background: #000; }
.hero-visual canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-caption { position: absolute; left: 14px; bottom: 12px; right: 14px; display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; pointer-events: none; }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: 12px;
  background: rgba(10, 12, 16, 0.65); border: 1px solid rgba(255, 255, 255, 0.12); color: #e6e9ef; backdrop-filter: blur(6px);
}
.swatch { width: 9px; height: 9px; border-radius: 3px; display: inline-block; flex: none; }

.stack { display: flex; flex-direction: column; gap: 14px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 13.5px; }
.kv dt { color: var(--text-muted); }
.kv dd { margin: 0; }
.tagline { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag { font: 500 12px/1 var(--font-mono); padding: 6px 9px; border-radius: 7px; background: var(--surface-3); color: var(--text-secondary); border: 1px solid var(--border); }

/* ------------------------------------------------------------------ controls */

.segmented { display: inline-flex; background: var(--surface-3); border: 1px solid var(--border); border-radius: 10px; padding: 3px; gap: 2px; }
.segmented button { border: 0; background: transparent; padding: 6px 12px; border-radius: 7px; cursor: pointer; color: var(--text-secondary); font-size: 13px; font-weight: 500; }
.segmented button[aria-pressed="true"] { background: var(--surface-1); color: var(--text-primary); box-shadow: 0 1px 2px rgba(0,0,0,0.25); }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-secondary); }
.field select, .field input[type="range"] { width: 100%; }
select {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 9px; padding: 7px 10px; color: var(--text-primary);
}
input[type="range"] { accent-color: var(--series-1); }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.filters { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }

.case-list { display: flex; flex-direction: column; gap: 8px; }
.case-btn {
  text-align: left; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface-2); cursor: pointer;
}
.case-btn:hover { border-color: var(--border-strong); }
.case-btn[aria-pressed="true"] { border-color: var(--series-1); box-shadow: 0 0 0 1px var(--series-1) inset; }
.case-btn .id { font: 600 13px var(--font-mono); }
.case-btn .meta { display: flex; gap: 10px; color: var(--text-muted); font-size: 12px; margin-top: 4px; }

/* viewer */
.viewer-wrap { position: relative; height: min(68vh, 640px); background: #000; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.viewer-wrap canvas { width: 100%; height: 100%; display: block; }
.viewer-badge { position: absolute; top: 10px; left: 12px; }
.viewer-hint { position: absolute; bottom: 10px; right: 12px; color: #9aa3b2; font-size: 11.5px; pointer-events: none; }
.legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12.5px; color: var(--text-secondary); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }

/* tables */
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--font-mono); font-size: 13px; }
tr.ours td { color: var(--text-primary); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
.table-scroll { overflow-x: auto; }

/* charts */
.chart { position: relative; width: 100%; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .grid line { stroke: var(--grid); shape-rendering: crispEdges; }
.chart .axis path, .chart .axis line { stroke: var(--axis); shape-rendering: crispEdges; }
.chart .axis text { fill: var(--text-muted); font: 11.5px var(--font-sans); font-variant-numeric: tabular-nums; }
.chart .label { fill: var(--text-secondary); font: 12px var(--font-sans); }
.chart .label-strong { fill: var(--text-primary); font: 600 12px var(--font-sans); }
.chart-toggle { font-size: 12px; }
.tooltip {
  position: fixed; z-index: 50; pointer-events: none; padding: 9px 11px; border-radius: 10px; min-width: 150px;
  background: var(--surface-2); border: 1px solid var(--border-strong); box-shadow: 0 8px 26px rgba(0,0,0,0.35);
  font-size: 12.5px; color: var(--text-primary); opacity: 0; transition: opacity 0.12s;
}
.tooltip.show { opacity: 1; }
.tooltip .t-title { font-weight: 600; margin-bottom: 4px; }
.tooltip .t-row { display: flex; justify-content: space-between; gap: 14px; color: var(--text-secondary); }
.tooltip .t-row b { color: var(--text-primary); font-weight: 600; font-variant-numeric: tabular-nums; }

.callout { border-left: 3px solid var(--series-1); background: color-mix(in srgb, var(--series-1) 8%, transparent); padding: 12px 14px; border-radius: 0 10px 10px 0; color: var(--text-secondary); font-size: 14px; }
.pending { display: flex; align-items: center; justify-content: center; min-height: 180px; color: var(--text-muted); font-size: 14px; border: 1px dashed var(--border-strong); border-radius: 12px; }

pre.code {
  margin: 0; padding: 14px 16px; border-radius: 10px; background: var(--surface-3); border: 1px solid var(--border);
  overflow-x: auto; font: 12.8px/1.6 var(--font-mono); color: var(--text-secondary);
}
.copy { float: right; margin: -4px -4px 0 8px; }

.progress { height: 6px; border-radius: 99px; background: var(--surface-3); overflow: hidden; }
.progress > i { display: block; height: 100%; width: 0; background: var(--series-1); transition: width 0.2s; }

.mobile-nav { display: none; }

/* ------------------------------------------------------------------ responsive */

@media (max-width: 1180px) {
  .g-viewer { grid-template-columns: 1fr; }
  .g-main, .hero { grid-template-columns: 1fr; }
  .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .rail { display: none; }
  .mobile-nav {
    display: flex; position: sticky; top: 0; z-index: 20; gap: 6px; overflow-x: auto; padding: 10px 14px;
    background: color-mix(in srgb, var(--surface-1) 85%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
  }
  .mobile-nav a { flex: none; text-decoration: none; padding: 6px 12px; border-radius: 99px; font-size: 13px; color: var(--text-secondary); border: 1px solid var(--border); }
  .mobile-nav a[aria-current="page"] { color: var(--text-primary); border-color: var(--series-1); }
  main { padding: 20px 16px 60px; }
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .stat .value { font-size: 32px; }
  .hero-visual { min-height: 300px; }
}
td.best { font-weight: 600; color: var(--text-primary); }

/* trust audits: a scorecard of checks, each with its rule */
.scorecard { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; margin-bottom: 18px; }
.check {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px 12px;
  border-left: 4px solid var(--muted-series); display: flex; flex-direction: column; gap: 6px; box-shadow: var(--shadow);
}
.check.holds { border-left-color: var(--series-3); }
.check.partly { border-left-color: var(--series-4); }
.check.fails { border-left-color: var(--series-2); }
.check-top { display: flex; align-items: center; gap: 8px; }
.badge { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; font-size: 13px; font-weight: 700; color: #0b0d12; }
.badge.holds { background: var(--series-3); }
.badge.partly { background: var(--series-4); }
.badge.fails { background: var(--series-2); }
.verdict { font-size: 12px; letter-spacing: 0.4px; text-transform: uppercase; color: var(--text-secondary); font-weight: 600; }
.check-name { font-size: 15.5px; font-weight: 600; }
.check-evidence { font-size: 13.5px; color: var(--text-secondary); line-height: 1.45; }
.check-rule { font-size: 12px; color: var(--text-muted); border-top: 1px dashed var(--border); padding-top: 6px; margin-top: auto; }
.check:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }