@font-face { font-family: "Montserrat"; font-weight: 400; src: url(/static/fonts/Montserrat-Regular.ttf) format("truetype"); font-display: swap; }
@font-face { font-family: "Montserrat"; font-weight: 600; src: url(/static/fonts/Montserrat-SemiBold.ttf) format("truetype"); font-display: swap; }
@font-face { font-family: "Montserrat"; font-weight: 700; src: url(/static/fonts/Montserrat-Bold.ttf) format("truetype"); font-display: swap; }

:root {
  --bg: #ddecf8;
  --fg: #102a43;
  --pos: #7ed957;
  --neg: #ff8f8f;
  --gold: #ffc145;
  --red: #ff474c;
  --card: #ffffff;
  --card-2: #f3f8fd;
  --line: #c3d6ea;
  --muted: #5b7a99;
  --shadow: 0 6px 22px rgba(16, 42, 67, 0.08);
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Montserrat", "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.45;
  min-height: 100vh;
}
a { color: var(--fg); }
button { font-family: inherit; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: 17px; }
h3 { font-size: 14px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.tiny { font-size: 11px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }

/* ── top bar ─────────────────────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 12px 26px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.topbar .logo { height: 44px; }
.topbar .title { display: flex; flex-direction: column; }
.topbar .title strong { font-size: 16px; }
.topbar .title span { font-size: 12px; color: var(--muted); }
.topbar .spacer { flex: 1; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 11px; border-radius: 999px;
  background: var(--card-2); border: 1px solid var(--line);
  font-size: 12px; font-weight: 600; color: var(--fg);
}
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--pos); }
.chip .dot.bad { background: var(--neg); }
.btn {
  border: 0; border-radius: 10px; padding: 10px 16px;
  font-weight: 700; font-size: 13px; cursor: pointer;
  background: var(--fg); color: #fff;
  transition: transform .06s ease, opacity .15s ease;
}
.btn:hover { opacity: .92; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.secondary { background: var(--card-2); color: var(--fg); border: 1px solid var(--line); }
.btn.positive { background: var(--pos); color: var(--fg); }
.btn.sm { padding: 7px 12px; font-size: 12px; }

/* ── layout ──────────────────────────────────────────────────────────────── */
.layout {
  display: grid; grid-template-columns: 350px minmax(0, 1fr); gap: 20px;
  padding: 20px 26px 40px;
  max-width: 1600px; margin: 0 auto;
}
@media (max-width: 980px) { .layout { grid-template-columns: 1fr; } }
.card {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px;
}
.card + .card { margin-top: 16px; }
.card h2 { margin-bottom: 8px; }

/* ── upload ──────────────────────────────────────────────────────────────── */
.drop {
  border: 2px dashed var(--line); border-radius: 12px;
  padding: 22px 14px; text-align: center; cursor: pointer;
  background: var(--card-2); transition: border-color .15s, background .15s;
}
.drop:hover, .drop.over { border-color: var(--fg); background: #eaf3fb; }
.drop strong { display: block; font-size: 14px; }
.drop .types { display: flex; flex-wrap: wrap; gap: 5px; justify-content: center; margin-top: 8px; }
.drop .types span { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 6px; background: #fff; border: 1px solid var(--line); }
.field { display: flex; flex-direction: column; gap: 4px; margin-top: 12px; }
.field label { font-size: 12px; font-weight: 600; color: var(--muted); }
.field input, .field select {
  font-family: inherit; font-size: 13px; padding: 8px 10px;
  border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--fg);
}
.row { display: flex; gap: 10px; align-items: center; }
.row > * { flex: 1; }
.file-pill { margin-top: 10px; font-size: 12px; font-weight: 600; display: none; }
.file-pill.show { display: block; }
.status { margin-top: 10px; font-size: 12px; min-height: 18px; color: var(--muted); }
.status.err { color: #b3261e; font-weight: 600; }
.samples { display: flex; flex-direction: column; gap: 8px; }
.sample {
  text-align: left; border: 1px solid var(--line); border-radius: 10px;
  background: var(--card-2); padding: 10px 12px; cursor: pointer; color: var(--fg);
}
.sample:hover { border-color: var(--fg); background: #eaf3fb; }
.sample strong { display: block; font-size: 13px; }
.sample span { font-size: 11px; color: var(--muted); }
.sample .kind { float: right; font-size: 10px; font-weight: 700; text-transform: uppercase; padding: 1px 6px; border-radius: 6px; background: #fff; border: 1px solid var(--line); }
.downloads { display: flex; flex-direction: column; gap: 8px; }

/* ── KPI tiles ───────────────────────────────────────────────────────────── */
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 1200px) { .kpis { grid-template-columns: repeat(2, 1fr); } }
.kpi {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 14px 16px 12px; position: relative; overflow: hidden;
}
.kpi .label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.kpi .value { font-size: 30px; font-weight: 700; margin-top: 4px; line-height: 1.1; }
.kpi .sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
.kpi .bar { position: absolute; left: 0; right: 0; bottom: 0; height: 5px; background: var(--line); }
.kpi .bar i { display: block; height: 100%; background: var(--pos); }
.kpi.bad .bar i { background: var(--neg); }
.kpi.warn .bar i { background: var(--gold); }

/* ── tabs ────────────────────────────────────────────────────────────────── */
.tabs { display: flex; gap: 4px; margin-top: 18px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.tab {
  border: 0; background: transparent; padding: 10px 14px; cursor: pointer;
  font-weight: 700; font-size: 13px; color: var(--muted);
  border-bottom: 3px solid transparent; margin-bottom: -1px;
}
.tab.active { color: var(--fg); border-bottom-color: var(--fg); }
.panel { display: none; margin-top: 16px; }
.panel.active { display: block; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 1100px) { .grid2 { grid-template-columns: 1fr; } }

/* ── bars & tables ───────────────────────────────────────────────────────── */
.hbar { display: grid; grid-template-columns: 130px 1fr 74px; align-items: center; gap: 10px; margin: 8px 0; }
.hbar .name { font-weight: 600; font-size: 13px; }
.hbar .name small { display: block; font-weight: 400; color: var(--muted); font-size: 11px; }
.hbar .track { height: 14px; background: var(--card-2); border: 1px solid var(--line); border-radius: 7px; overflow: hidden; position: relative; }
.hbar .track i { display: block; height: 100%; background: var(--pos); }
.hbar .track i.bad { background: var(--neg); }
.hbar .track i.warn { background: var(--gold); }
.hbar .track .thr { position: absolute; top: -2px; bottom: -2px; width: 2px; background: var(--fg); opacity: .6; }
.hbar .val { text-align: right; font-weight: 700; font-size: 13px; }
.hbar .val small { display: block; font-weight: 400; color: var(--muted); font-size: 11px; }
table.t { width: 100%; border-collapse: collapse; font-size: 13px; }
table.t th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: 6px 8px; border-bottom: 1px solid var(--line); }
table.t td { padding: 7px 8px; border-bottom: 1px solid #eef3f8; }
.flag { display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 6px; background: var(--card-2); border: 1px solid var(--line); }
.flag.bad { background: var(--neg); border-color: var(--neg); color: #4a1010; }
.flag.good { background: var(--pos); border-color: var(--pos); color: #123a00; }
.flag.warn { background: var(--gold); border-color: var(--gold); color: #4a2f00; }
.gauge { height: 22px; border-radius: 11px; overflow: hidden; display: flex; border: 1px solid var(--line); position: relative; margin: 10px 0 6px; }
.gauge i { display: block; height: 100%; }
.gauge .needle { position: absolute; top: -4px; bottom: -4px; width: 3px; background: var(--fg); border-radius: 2px; }
.gauge-labels { display: flex; justify-content: space-between; font-size: 11px; color: var(--muted); }
.bins { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; align-items: end; height: 150px; margin-top: 12px; }
.bins .b { display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; }
.bins .b i { display: block; width: 100%; background: var(--pos); border-radius: 6px 6px 0 0; min-height: 2px; }
.bins .b.r i { background: var(--neg); }
.bins .b.w i { background: var(--gold); }
.bins .b span { font-size: 10px; color: var(--muted); margin-top: 4px; text-align: center; line-height: 1.15; }
.bins .b b { font-size: 11px; margin-bottom: 3px; }
.big { font-size: 42px; font-weight: 700; line-height: 1; }
.note { background: var(--card-2); border-left: 4px solid var(--gold); padding: 10px 12px; border-radius: 8px; font-size: 12px; margin-top: 12px; }
.metric-row { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 8px; }
.metric-row div b { display: block; font-size: 20px; }
.metric-row div span { font-size: 11px; color: var(--muted); }
dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; font-size: 12px; margin: 8px 0 0; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; font-weight: 600; word-break: break-all; }

/* ── ECG viewer ──────────────────────────────────────────────────────────── */
.ecg-controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.seg button { border: 0; background: var(--card-2); padding: 7px 12px; font-weight: 600; font-size: 12px; cursor: pointer; color: var(--muted); }
.seg button.active { background: var(--fg); color: #fff; }
.legend { display: flex; gap: 14px; font-size: 12px; margin-left: auto; }
.legend i { display: inline-block; width: 18px; height: 3px; vertical-align: middle; margin-right: 5px; border-radius: 2px; }
.ecg-wrap { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
canvas.ecg { width: 100%; display: block; }
.lead-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.lead-chips .lc { font-size: 11px; padding: 3px 8px; border-radius: 6px; background: var(--card-2); border: 1px solid var(--line); }
.lead-chips .lc b { margin-right: 4px; }
.lead-chips .lc.absent { opacity: .5; }
.lead-chips .lc.derived { border-color: var(--gold); }
.lead-chips .lc.imputed { border-color: var(--red); }

/* ── empty state, modal, footer ──────────────────────────────────────────── */
.empty { text-align: center; padding: 60px 20px; }
.empty .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 26px; text-align: left; }
@media (max-width: 800px) { .empty .steps { grid-template-columns: 1fr; } }
.empty .step { background: var(--card-2); border-radius: 12px; padding: 14px; }
.empty .step b { display: block; font-size: 22px; color: var(--red); }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--line); border-top-color: var(--fg); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: middle; margin-right: 6px; }
@keyframes spin { to { transform: rotate(360deg); } }
.modal-bg { position: fixed; inset: 0; background: rgba(16,42,67,.45); display: none; align-items: center; justify-content: center; z-index: 50; }
.modal-bg.show { display: flex; }
.modal { background: #fff; border-radius: 16px; padding: 22px; width: min(560px, 92vw); max-height: 86vh; overflow: auto; box-shadow: var(--shadow); }
.modal h2 { margin-bottom: 6px; }
pre.json { background: var(--card-2); border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: 11px; max-height: 520px; overflow: auto; white-space: pre-wrap; word-break: break-word; }
footer { text-align: center; color: var(--muted); font-size: 11px; padding: 10px 20px 30px; }
.disclaimer { color: var(--red); font-weight: 600; }

/* ── clinical drawings ───────────────────────────────────────────────────── */
.figbox { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 8px; }
.figbox svg.fig { width: 100%; height: auto; display: block; max-height: 440px; }
.figbox.wide svg.fig { max-height: 300px; }
.fig-legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 11px; color: var(--muted); margin-top: 8px; }
.fig-legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -2px; margin-right: 5px; }
.strip { display: flex; height: 16px; border-radius: 8px; overflow: hidden; border: 1px solid var(--line); margin: 10px 0 4px; }
.strip i { display: block; height: 100%; }

/* ── sign-in ─────────────────────────────────────────────────────────────── */
.login { position: fixed; inset: 0; background: var(--bg); display: flex; align-items: center; justify-content: center; z-index: 60; padding: 20px; }
.login[hidden] { display: none; }
.login-card { background: var(--card); border-radius: 18px; box-shadow: var(--shadow); padding: 30px 30px 18px; width: min(420px, 100%); text-align: center; }
.login-card .login-logo { height: 54px; margin-bottom: 8px; }
.login-card .field { text-align: left; }
.linkbtn { border: 0; background: transparent; color: var(--red); font-weight: 700; font-size: 12px; cursor: pointer; padding: 0 0 0 6px; }
#app[hidden] { display: none; }