:root {
  --bg: #f3f6f9;
  --surface: #fff;
  --surface-2: #eef2f6;
  --surface-3: #e3eaf0;
  --text: #15212b;
  --muted: #5b6b78;
  --accent: #0a4d68;
  --accent-2: #0796a0;
  --warn: #c2410c;
  --danger: #b91c1c;
  --ok: #166534;
  --border: #d3dae0;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.07);
}
[data-theme="dark"] {
  --bg: #0e141a;
  --surface: #18222c;
  --surface-2: #1f2c38;
  --surface-3: #283848;
  --text: #e6edf3;
  --muted: #95a4b3;
  --accent: #38bdf8;
  --accent-2: #5eead4;
  --warn: #fb923c;
  --danger: #f87171;
  --ok: #4ade80;
  --border: #2a3a48;
  --shadow: 0 1px 3px rgba(0,0,0,.4);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin:0; padding:0; height:100%; }
body {
  font: 16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif;
  background: var(--bg); color: var(--text);
  padding-bottom: calc(64px + env(safe-area-inset-bottom));
}
button { font: inherit; color: inherit; cursor: pointer; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 8px;
  padding: 10px 12px;
  padding-top: max(10px, env(safe-area-inset-top));
  background: var(--accent); color: #fff;
  box-shadow: var(--shadow);
}
.app-header h1 { flex: 1; margin: 0; font-size: 18px; font-weight: 600; }
.icon-btn {
  min-width: 40px; height: 40px; padding: 0 8px;
  background: rgba(255,255,255,.13); color: #fff;
  border: 0; border-radius: 8px; font-size: 18px;
}
.icon-btn:active { background: rgba(255,255,255,.28); }
.badge {
  font-size: 11px; padding: 2px 8px;
  background: rgba(255,255,255,.18); color: #fff;
  border-radius: 999px; letter-spacing: .5px;
}
.badge.off { background: rgba(255,80,80,.35); }

.search-wrap {
  position: sticky; top: 60px; z-index: 18;
  display: flex; gap: 6px; padding: 8px 12px;
  background: var(--bg); border-bottom: 1px solid var(--border);
}
#search {
  flex: 1; min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--border); border-radius: 999px;
  background: var(--surface); color: var(--text);
  font-size: 16px;
}
#search:focus { outline: 2px solid var(--accent-2); border-color: var(--accent-2); }
.clear-btn {
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent-2, var(--accent)); color: #fff;
  border: 1px solid var(--accent-2, var(--accent)); border-radius: 50%;
  font-size: 18px; font-weight: 700; line-height: 1; cursor: pointer;
  flex-shrink: 0;
}
.clear-btn:active { transform: scale(0.92); }
/* Скрыть нативный X у type=search во всех браузерах (если кто-то вернёт type=search) */
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

main { padding: 12px; max-width: 900px; margin: 0 auto; }

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.tile {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 12px; min-height: 78px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  text-decoration: none; cursor: pointer;
  box-shadow: var(--shadow);
}
.tile:active { transform: scale(.98); background: var(--surface-2); }
.tile .t { font-weight: 600; font-size: 15px; }
.tile .s { font-size: 12px; color: var(--muted); }
.tile.urgent { border-left: 4px solid var(--danger); }

.section-title {
  margin: 16px 4px 8px;
  font-size: 13px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .5px; color: var(--muted);
}

.list-item {
  display: block;
  padding: 12px 14px; margin-bottom: 8px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  text-decoration: none;
}
.list-item:active { background: var(--surface-2); }
.list-item .lt { font-weight: 600; }
.list-item .ls { font-size: 13px; color: var(--muted); margin-top: 2px; }
.list-item .lm { font-size: 12px; color: var(--muted); margin-top: 4px; display:flex; flex-wrap:wrap; gap:4px; }
.tag {
  display: inline-block; padding: 1px 7px;
  font-size: 11px; background: var(--surface-2); color: var(--muted);
  border-radius: 999px; line-height: 1.6;
}
.tag.icd { background: var(--accent); color: #fff; font-family: ui-monospace, monospace; }
.tag.urgent { background: var(--danger); color: #fff; }
.tag.rx { background: var(--warn); color: #fff; }
.tag.amb { background: var(--ok); color: #fff; }
.tag.atc { background: var(--surface-3); color: var(--accent); font-family: ui-monospace, monospace; }

.card {
  background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 4px; font-size: 20px; line-height: 1.25; }
.card .syn { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.card h3 { margin: 14px 0 6px; font-size: 15px; color: var(--accent); }
.card .meta { font-size: 12px; color: var(--muted); margin-top: 8px; padding-top:8px; border-top: 1px solid var(--border); }
.card ul { margin: 4px 0 4px 18px; padding: 0; }
.card li { margin: 3px 0; }
.card p { margin: 6px 0; }
.card .src { font-size: 11px; color: var(--muted); font-style: italic; }

.urgent-banner {
  padding: 10px 12px; margin: 0 0 12px;
  background: rgba(185,28,28,.10); border-left: 4px solid var(--danger);
  border-radius: 8px; font-weight: 600; color: var(--danger);
}
.amb-banner {
  padding: 8px 12px; margin: 0 0 12px;
  background: rgba(22,101,52,.10); border-left: 4px solid var(--ok);
  border-radius: 8px; color: var(--ok); font-size:14px;
}

details { margin: 8px 0; border-top: 1px solid var(--border); padding-top: 6px; }
details > summary { font-weight: 600; cursor: pointer; padding: 4px 0; user-select: none; list-style: none; }
details > summary::-webkit-details-marker { display:none; }
details > summary::before { content: "▸ "; color: var(--accent-2); display:inline-block; transition: transform .15s; }
details[open] > summary::before { transform: rotate(90deg); content: "▾ "; }

.kv { display: grid; grid-template-columns: minmax(110px, 30%) 1fr; gap: 6px 12px; font-size: 14px; align-items: baseline; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; min-height: 36px;
  background: var(--accent); color: #fff;
  border: 0; border-radius: 8px; font-size: 14px; font-weight:500;
}
.btn:active { background: var(--accent-2); }
.btn.ghost { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn-row { display:flex; gap:6px; flex-wrap:wrap; margin-top: 8px; }

.drug-line { font-size: 14px; padding: 4px 0; }
.drug-line .inn { font-weight: 600; }
.drug-line .br { color: var(--muted); font-size: 13px; }

.warn-pill { display:inline-block; padding: 2px 8px; font-size: 12px; border-radius:999px; margin-right:4px; }
.warn-pill.preg { background: #fecaca; color: #991b1b; }
.warn-pill.kids { background: #fed7aa; color: #9a3412; }
.warn-pill.gla { background: #fde68a; color: #78350f; }
.warn-pill.cl { background: #ddd6fe; color: #4c1d95; }
[data-theme="dark"] .warn-pill.preg { background: #7f1d1d; color: #fecaca; }
[data-theme="dark"] .warn-pill.kids { background: #7c2d12; color: #fed7aa; }
[data-theme="dark"] .warn-pill.gla { background: #78350f; color: #fde68a; }
[data-theme="dark"] .warn-pill.cl { background: #4c1d95; color: #ddd6fe; }

.empty { padding: 40px 20px; text-align: center; color: var(--muted); }
.empty .em { font-size: 40px; opacity: .4; display:block; margin-bottom: 6px; }

.install-btn {
  position: fixed; bottom: calc(78px + env(safe-area-inset-bottom)); right: 16px;
  padding: 10px 18px;
  background: var(--accent-2); color: #fff;
  border: 0; border-radius: 999px;
  font-size: 14px; font-weight: 600;
  box-shadow: 0 4px 12px rgba(0,0,0,.25); z-index: 30;
}

.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  display: grid; grid-template-columns: repeat(5, 1fr);
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--surface); border-top: 1px solid var(--border);
  z-index: 30;
}
.bn-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; padding: 8px 4px; min-height: 64px;
  background: transparent; color: var(--muted); border: 0;
  font-size: 11px;
}
.bn-btn .ic { font-size: 22px; line-height: 1; }
.bn-btn.active { color: var(--accent-2); }
.bn-btn.active .ic { transform: scale(1.05); }

.app-footer {
  margin: 18px 0 8px; padding: 12px;
  font-size: 11px; color: var(--muted);
  background: var(--surface); border-radius: var(--radius);
  border: 1px solid var(--border);
}
.app-footer .dis { color: var(--warn); margin-top: 4px; }

.algo-step {
  display: flex; gap: 12px; padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.algo-step .n {
  flex: 0 0 28px; height:28px;
  display:flex; align-items:center; justify-content:center;
  background: var(--accent); color: #fff;
  border-radius: 50%; font-weight: 600; font-size: 13px;
}
.algo-step .t { flex: 1; }
.algo-step:last-child { border-bottom: 0; }

table.scale { width: 100%; border-collapse: collapse; font-size: 13px; margin: 6px 0; }
table.scale th, table.scale td { padding: 6px 8px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
table.scale th { background: var(--surface-2); font-weight: 600; }

.abbr-grid { display: grid; grid-template-columns: 80px 1fr; gap: 4px 12px; font-size: 14px; }
.abbr-grid dt { font-weight: 600; color: var(--accent); font-family: ui-monospace, monospace; }
.abbr-grid dd { margin: 0; }

.age-toggle { display: flex; gap: 4px; margin: 6px 0 10px; }
.age-toggle button {
  flex: 1; padding: 6px 8px;
  background: var(--surface-2); color: var(--muted);
  border: 1px solid var(--border); border-radius: 8px; font-size: 13px;
}
.age-toggle button.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.age-note {
  margin: 4px 0 12px; padding: 8px 10px;
  border-radius: 8px; font-size: 13px; line-height: 1.4;
}
.age-note--ok { background: rgba(46, 160, 67, 0.12); border-left: 3px solid #2ea043; color: var(--text); }
.age-note--warn { background: rgba(255, 169, 0, 0.12); border-left: 3px solid #ffa900; color: var(--text); }

li.rx-caution { background: rgba(255, 169, 0, 0.08); border-left: 2px solid #ffa900; padding-left: 6px; }
li.rx-contra { background: rgba(220, 53, 69, 0.10); border-left: 2px solid #dc3545; padding-left: 6px; }
li.rx-contra a { text-decoration: line-through; }
.rx-warn { display: inline-block; margin-left: 6px; padding: 1px 6px; border-radius: 6px; background: var(--surface-2); font-size: 11px; color: var(--muted); }

@media (min-width: 700px) {
  main { padding: 16px 20px; }
  .tile-grid { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
  .app-header h1 { font-size: 20px; }
}

/* ── Калькуляторы ── */
.card.calc h3 { margin: 2px 0 12px; font-size: 16px; }
.calc-row { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.calc-row label { font-size: 13px; color: var(--muted); }
.calc-row input, .calc-row select {
  min-height: 44px; padding: 9px 12px;
  border: 1px solid var(--border); border-radius: 9px;
  background: var(--surface-2); color: var(--text); font-size: 16px;
  width: 100%;
}
.calc-row input:focus, .calc-row select:focus { outline: 2px solid var(--accent-2); border-color: var(--accent-2); }
.calc-out {
  margin: 8px 0 6px; padding: 11px 13px;
  background: var(--surface-3); border-left: 3px solid var(--accent-2);
  border-radius: 8px; font-size: 16px; color: var(--text);
}
.calc-out b { color: var(--accent); font-size: 18px; }
[data-theme="dark"] .calc-out b { color: var(--accent-2); }
.calc-note { font-size: 12px; color: var(--muted); margin-top: 2px; line-height: 1.4; }

/* ── UX-полировка (90+) ── */
.tile, .list-item, .btn, .bn-btn { transition: transform .12s ease, background-color .15s ease, box-shadow .15s ease, border-color .15s ease; }
.tile:hover { box-shadow: 0 3px 10px rgba(0,0,0,.10); border-color: var(--accent-2); }
.list-item:hover { border-color: var(--accent-2); }
.card { transition: box-shadow .15s ease; }
/* читаемость справочных таблиц */
table.scale tr:nth-child(even) td { background: var(--surface-2); }
table.scale td:first-child { font-weight: 600; color: var(--text); }
table.scale th:first-child { border-top-left-radius: 6px; }
.card svg { border: 1px solid var(--border); border-radius: 10px; background: var(--surface); margin-top: 8px; }
/* раскрытие разделов */
details > summary:hover { color: var(--accent-2); }
.urgent-banner, .amb-banner { line-height: 1.45; }
/* акцент на красных флагах внутри текста */
.card p, .card li { overflow-wrap: anywhere; }
/* плотность списков диагнозов */
.list-item .lt { line-height: 1.3; }
/* мягкое выделение активной нижней кнопки */
.bn-btn.active { position: relative; }
.bn-btn.active::after { content:""; position:absolute; top:4px; left:50%; transform:translateX(-50%); width:26px; height:3px; border-radius:3px; background: var(--accent-2); }

/* ── Иллюстрации в карточке диагноза ── */
.dx-fig { margin: 10px 0 6px; padding: 0; text-align: center; }
.dx-fig svg, .dx-fig img { max-width: 100%; height: auto; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.dx-fig figcaption { margin-top: 6px; font-size: 12px; color: var(--muted); font-style: italic; }