/* Design tokens */
:root {
  --bg:        #f7f6f3;
  --panel:     #ffffff;
  --panel-2:   #fafaf7;
  --ink:       #0f172a;
  --muted:     #64748b;
  --line:      #e2e8f0;
  --line-2:    #cbd5e1;
  --accent:    #0c4a6e;
  --accent-2:  #1e6fb8;
  --accent-3:  #0891b2;
  --accent-bg: #ecfeff;
  --radius:    10px;
  --shadow-1:  0 1px 2px rgba(15,23,42,0.04), 0 1px 3px rgba(15,23,42,0.04);
  --shadow-2:  0 4px 12px rgba(15,23,42,0.06), 0 2px 4px rgba(15,23,42,0.04);
  --font-ui:   -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Monaco, monospace;

  /* Tint palette — domain pills */
  --tint-violet-bg: #ede9fe; --tint-violet-ink: #5b21b6;
  --tint-rose-bg:   #ffe4e6; --tint-rose-ink:   #9f1239;
  --tint-indigo-bg: #e0e7ff; --tint-indigo-ink: #3730a3;
  --tint-amber-bg:  #fef3c7; --tint-amber-ink:  #92400e;
  --tint-sky-bg:    #e0f2fe; --tint-sky-ink:    #075985;
  --tint-orange-bg: #ffedd5; --tint-orange-ink: #9a3412;
  --tint-pink-bg:   #fce7f3; --tint-pink-ink:   #9d174d;
  --tint-teal-bg:   #ccfbf1; --tint-teal-ink:   #115e59;
  --tint-lime-bg:   #ecfccb; --tint-lime-ink:   #365314;
  --tint-slate-bg:  #f1f5f9; --tint-slate-ink:  #334155;

  /* Class pills */
  --pill-std-bg:    #dcfce7; --pill-std-ink:    #166534;
  --pill-loinc-bg:  #dbeafe; --pill-loinc-ink:  #1e40af;
  --pill-local-bg:  #fef3c7; --pill-local-ink:  #92400e;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 var(--font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--accent-2); }
a:hover { color: var(--accent); }
code { font-family: var(--font-mono); font-size: 12.5px; background: #f1f5f9; padding: 1px 5px; border-radius: 4px; }

/* ── Banner / hero ───────────────────────────────────────────────────────── */
.banner {
  position: relative;
  height: 220px;
  background: linear-gradient(135deg, #0c4a6e 0%, #1e6fb8 55%, #0891b2 100%);
  overflow: hidden;
}
.banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.7; }
.banner-inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 32px;
  color: white;
}
.banner h1 {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.25);
}
.banner .tagline { font-size: 15px; opacity: 0.95; max-width: 760px; text-shadow: 0 1px 4px rgba(0,0,0,0.2); }
.banner .badges { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.banner .badges a {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.18); color: white; text-decoration: none;
  padding: 4px 10px; border-radius: 999px; font-size: 12px;
  border: 1px solid rgba(255,255,255,0.32);
  backdrop-filter: blur(4px);
}
.banner .badges a:hover { background: rgba(255,255,255,0.28); }
.banner .badges svg { width: 12px; height: 12px; fill: currentColor; }

/* ── Stats strip ─────────────────────────────────────────────────────────── */
.stats-strip {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.stats-row {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
}
.stat {
  padding: 8px 24px;
  border-right: 1px solid var(--line);
}
.stat:last-child { border-right: none; }
.stat .num { font-size: 26px; font-weight: 700; color: var(--accent); display: block; line-height: 1.1; }
.stat .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 4px; display: block; }

/* ── Main layout ─────────────────────────────────────────────────────────── */
main { max-width: 1200px; margin: 0 auto; padding: 24px 32px 80px; }

/* ── Filter toolbar ─────────────────────────────────────────────────────── */
.toolbar {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 16px 18px;
  margin-bottom: 18px;
  display: grid;
  grid-template-columns: 2fr repeat(6, 1fr) auto;
  gap: 12px;
  align-items: end;
}
.toolbar .field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.toolbar label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  font-weight: 500;
}
.toolbar select,
.toolbar input[type="text"] {
  border: 1px solid var(--line);
  background: white;
  padding: 7px 9px;
  border-radius: 6px;
  font: inherit;
  color: var(--ink);
  width: 100%;
}
.toolbar select:focus, .toolbar input[type="text"]:focus {
  outline: 2px solid var(--accent-2);
  outline-offset: 1px;
  border-color: var(--accent-2);
}
.reset-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--accent-2);
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font: inherit;
  white-space: nowrap;
}
.reset-btn:hover { background: var(--accent-bg); border-color: var(--accent-2); }

@media (max-width: 1080px) {
  .toolbar { grid-template-columns: 1fr 1fr 1fr; }
  .toolbar .field.search { grid-column: 1 / -1; }
}

/* ── Result count ────────────────────────────────────────────────────────── */
.result-count { color: var(--muted); font-size: 13px; margin-bottom: 10px; }

/* ── Table ───────────────────────────────────────────────────────────────── */
.table-wrap {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}
table { width: 100%; border-collapse: collapse; }
thead { background: var(--panel-2); }
th {
  text-align: left;
  padding: 12px 14px;
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
th:hover { color: var(--ink); }
th .arrow { display: inline-block; opacity: 0.35; font-size: 9px; margin-left: 4px; vertical-align: 1px; }
th.active { color: var(--accent); }
th.active .arrow { opacity: 1; color: var(--accent); }
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fcfcfa; }

.title-cell { max-width: 360px; }
.title-cell a {
  display: inline-block;
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 500;
  font-size: 14.5px;
  line-height: 1.35;
}
.title-cell a:hover { color: var(--accent); text-decoration: underline; }
.title-cell .id {
  color: var(--muted);
  font-size: 12px;
  font-family: var(--font-mono);
  margin-top: 3px;
}
.title-cell .variant {
  color: var(--muted);
  font-size: 12px;
  margin-top: 1px;
  font-style: italic;
}

/* ── Pills ───────────────────────────────────────────────────────────────── */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 500;
  white-space: nowrap;
  line-height: 1.4;
}
.pill.std    { background: var(--pill-std-bg);    color: var(--pill-std-ink); }
.pill.loinc  { background: var(--pill-loinc-bg);  color: var(--pill-loinc-ink); }
.pill.local  { background: var(--pill-local-bg);  color: var(--pill-local-ink); }
.pill-group  { display: flex; flex-wrap: wrap; gap: 4px; }

.domain-pill { padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 500; }
.tint-violet { background: var(--tint-violet-bg); color: var(--tint-violet-ink); }
.tint-rose   { background: var(--tint-rose-bg);   color: var(--tint-rose-ink); }
.tint-indigo { background: var(--tint-indigo-bg); color: var(--tint-indigo-ink); }
.tint-amber  { background: var(--tint-amber-bg);  color: var(--tint-amber-ink); }
.tint-sky    { background: var(--tint-sky-bg);    color: var(--tint-sky-ink); }
.tint-orange { background: var(--tint-orange-bg); color: var(--tint-orange-ink); }
.tint-pink   { background: var(--tint-pink-bg);   color: var(--tint-pink-ink); }
.tint-teal   { background: var(--tint-teal-bg);   color: var(--tint-teal-ink); }
.tint-lime   { background: var(--tint-lime-bg);   color: var(--tint-lime-ink); }
.tint-slate  { background: var(--tint-slate-bg);  color: var(--tint-slate-ink); }

.formtype { font-size: 12.5px; color: var(--ink); display: inline-flex; align-items: center; gap: 4px; }
.formtype .glyph { color: var(--accent-2); font-size: 14px; }
.audience-tag { font-size: 12px; color: var(--muted); }

.stats-cell { font-size: 12px; color: var(--muted); white-space: nowrap; line-height: 1.5; }
.stats-cell strong { color: var(--ink); font-weight: 600; }
.feature-chip {
  font-size: 11px;
  background: var(--accent-bg);
  color: var(--accent);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.source-cell { color: var(--muted); font-size: 12px; max-width: 240px; line-height: 1.4; }
.source-cell a { color: var(--muted); }
.source-cell .variants {
  color: var(--accent-3);
  font-size: 11px;
  font-weight: 500;
  margin-top: 2px;
}

/* ── Empty / footer ──────────────────────────────────────────────────────── */
.empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--muted);
}
.empty .icon { font-size: 32px; margin-bottom: 8px; }

.footer {
  max-width: 1200px;
  margin: 24px auto 0;
  padding: 0 32px;
  color: var(--muted);
  font-size: 12.5px;
  text-align: center;
}
.footer code { background: rgba(255,255,255,0.6); }

/* ── Responsive niceties ────────────────────────────────────────────────── */
@media (max-width: 720px) {
  .banner { height: 180px; }
  .banner h1 { font-size: 22px; }
  .banner .tagline { font-size: 13px; }
  .stat { padding: 8px 12px; }
  .stat .num { font-size: 22px; }
  main { padding: 16px 16px 60px; }
  th, td { padding: 10px 10px; font-size: 13px; }
  .title-cell a { font-size: 13.5px; }
}