:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c2026;
  --muted: #667080;
  --border: #dde1e7;
  --accent: #c2410c;
  --accent-soft: #fdebe1;
  --error: #b91c1c;
  --row: #f8f9fb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --card: #1d2128;
    --text: #e8eaee;
    --muted: #98a1b0;
    --border: #313742;
    --accent: #f97316;
    --accent-soft: #3a2413;
    --error: #f87171;
    --row: #232830;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 1040px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { font-size: 1.6rem; margin: 0; }
.page-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; margin: 0 0 4px; }
.lang { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--card); }
.lang button { padding: 5px 12px; border: 0; background: transparent; font-size: 0.875rem; font-weight: 600; }
.lang button + button { border-left: 1px solid var(--border); }
.lang button[aria-pressed="true"] { background: var(--accent); color: #fff; }
.lang button:focus-visible { outline-offset: -2px; }
h2, h3 { font-size: 1.1rem; margin: 0; }
h2.section { font-size: 1.25rem; margin: 24px 0 8px; scroll-margin-top: 12px; }
h3::first-letter { text-transform: uppercase; }
.history { display: grid; gap: 12px; justify-items: stretch; }
.history > .btn { justify-self: start; }
.sets-fold > .fold { font-size: 0.9375rem; font-weight: 600; }
.sets { list-style: none; margin: 8px 0 0; padding: 0; font-variant-numeric: tabular-nums; }
.sets li { display: flex; gap: 12px; padding: 4px 8px; border-radius: 6px; }
.sets li:nth-child(odd) { background: var(--row); }
.sets .n { min-width: 1.5em; color: var(--muted); font-weight: 400; }
.sets .top { font-weight: 700; color: var(--accent); }
.entry-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 12px; }
.entry-actions .result { margin-top: 0; flex: 1 1 220px; }
input[type="date"] { padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); }
.field input[type="date"] { width: 100%; padding: 9px 10px; }
.btn.small { padding: 6px 10px; font-size: 0.875rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.inputs .end { display: flex; flex-wrap: wrap; gap: 8px; }
.entry-date { font-weight: 600; text-align: right; }
.entry-date::first-letter { text-transform: uppercase; }
.level-card { margin-top: 16px; }
.fold { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; cursor: pointer; list-style: none; border-radius: 4px; }
.fold::-webkit-details-marker { display: none; }
.fold::before {
  content: ""; flex: none; width: 0; height: 0;
  border-left: 6px solid var(--muted); border-top: 5px solid transparent; border-bottom: 5px solid transparent;
}
details[open] > .fold::before { transform: rotate(90deg); }
.fold:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.fold .level-note { margin-left: auto; }
.chart-card { margin-top: 16px; }
.chart-card .meta { margin-top: 8px; }
.level-profile { display: flex; flex-wrap: wrap; gap: 12px 16px; margin: 10px 0 0; }
.level-profile .field { flex: 0 1 200px; }
.level-note { font-size: 0.8125rem; font-weight: 600; color: var(--muted); border: 1px dashed var(--border); border-radius: 999px; padding: 1px 10px; }
.level-result { margin: 12px 0 0; }
.level-scale { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 6px; margin: 10px 0 0; padding: 0; }
.level-scale li { border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; font-size: 0.875rem; }
.level-scale li strong { display: block; font-variant-numeric: tabular-nums; }
.level-scale li.reached { background: var(--accent-soft); }
.level-scale li.current { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.scores { margin: 12px 0 0; padding: 6px 0 0; border-top: 1px solid var(--border); }
.scores .table-wrap { overflow-x: auto; }
.scores table { font-size: 0.875rem; }
.scores tbody tr:nth-child(odd) { background: transparent; }
.scores tbody tr + tr td { border-top: 1px solid var(--border); }
.scores td.mine { font-weight: 700; }
.scores td.reached { background: var(--accent-soft); }
.scores .hint { font-size: 0.8125rem; color: var(--muted); margin: 6px 0 0; }
.competitors { margin: 12px 0 0; padding: 10px 0 0; border-top: 1px solid var(--border); font-size: 0.9375rem; }
.competitors p { margin: 0; }
.competitors ul { margin: 6px 0 0; padding-left: 20px; }
.competitors .hint { font-size: 0.8125rem; color: var(--muted); margin: 6px 0 0; }
.competitors a { color: inherit; }
.level-card .meta { margin: 8px 0 0; }
.chart { position: relative; }
.chart svg { display: block; width: 100%; height: auto; touch-action: pan-y; }
.chart .grid { stroke: var(--border); stroke-width: 1; }
.chart .axis-text { fill: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.chart .value-label { fill: var(--text); font-size: 12px; font-weight: 700; font-variant-numeric: tabular-nums; }
.chart .line { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .ref { stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 5 4; }
.chart .ref-label { fill: var(--muted); font-size: 12px; font-weight: 600; paint-order: stroke; stroke: var(--card); stroke-width: 4px; stroke-linejoin: round; }
.chart .crosshair { stroke: var(--muted); stroke-width: 1; }
.dot { stroke-width: 2; }
.dot.success { fill: var(--accent); stroke: var(--card); }
.dot.failure { fill: var(--card); stroke: var(--accent); }
.chart-tip {
  position: absolute; top: 0; pointer-events: none; white-space: nowrap;
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 10px; font-size: 0.8125rem; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}
.chart-tip strong { display: block; font-size: 0.9375rem; }
.chart-legend { display: flex; gap: 16px; margin: 8px 0 0; font-size: 0.8125rem; color: var(--muted); }
.chart-legend span { display: inline-flex; align-items: center; gap: 4px; }
.chart-card .empty { padding: 12px 0; }
.proposal { cursor: pointer; }
.proposal:hover { border-color: var(--accent); }
.proposal .btn { width: 100%; margin-top: 12px; }
.lead { color: var(--muted); margin: 0 0 24px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.inputs { display: flex; flex-wrap: wrap; gap: 12px 16px; margin-bottom: 20px; }
.field { display: flex; flex-direction: column; gap: 4px; flex: 1 1 200px; }
label { font-size: 0.875rem; font-weight: 600; }
input, select { font: inherit; color: inherit; }
input[type="number"], select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}
input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.error { font-size: 0.8125rem; color: var(--error); min-height: 1.2em; }
.sessions { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.meta { font-size: 0.875rem; color: var(--muted); margin: 2px 0 10px; }
.inol { font-weight: 700; font-variant-numeric: tabular-nums; text-align: right; }
.card-head { flex-wrap: wrap; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: 7px 8px; text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
thead th { font-size: 0.8125rem; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--border); }
tbody tr:nth-child(odd) { background: var(--row); }
tbody tr.top { background: var(--accent-soft); font-weight: 700; }
tbody tr.top td:first-child { box-shadow: inset 3px 0 0 var(--accent); }
td.weight { font-weight: 700; }
.empty { color: var(--muted); text-align: center; padding: 24px 0; margin: 0; }
.backup { margin-top: 40px; padding-top: 8px; border-top: 1px solid var(--border); }
.backup-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.backup-status { margin: 10px 0 0; font-size: 0.875rem; min-height: 0; color: var(--text); }
.backup-status.error { color: var(--error); }
:root { --ok: #15803d; --fail: #b91c1c; }
@media (prefers-color-scheme: dark) { :root { --ok: #4ade80; --fail: #f87171; } }
button { font: inherit; color: inherit; cursor: pointer; }
button:focus-visible, input[type="text"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
input[type="text"] {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tab {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
}
.tab[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.tab.add { border-style: dashed; color: var(--muted); }
.tab.add[aria-selected="true"] { color: #fff; border-style: solid; }
.tab.plan { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.tab.plan[aria-selected="true"] { color: #fff; }
.btn { padding: 9px 14px; border: 1px solid var(--border); border-radius: 8px; background: var(--card); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.inputs { align-items: flex-start; }
.inputs .end { flex: 0 0 auto; align-self: center; }
.presets { display: flex; flex-wrap: wrap; gap: 6px; flex: 1 1 100%; }
.preset { padding: 4px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg); font-size: 0.875rem; }
.card.success { border-color: var(--ok); }
.card.failure { border-color: var(--fail); }
.result { display: flex; margin-top: 12px; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.result button { flex: 1; padding: 7px 8px; border: 0; background: transparent; font-size: 0.875rem; }
.result button + button { border-left: 1px solid var(--border); }
.result button.success[aria-pressed="true"] { background: var(--ok); color: #fff; font-weight: 600; }
.result button.failure[aria-pressed="true"] { background: var(--fail); color: #fff; font-weight: 600; }
.consent {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 10;
  max-width: 720px; margin: 0 auto;
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}
.consent p { flex: 1 1 320px; margin: 0; font-size: 0.9375rem; }
.consent .actions { display: flex; flex-wrap: wrap; gap: 8px; }
@media (prefers-color-scheme: dark) {
  .tab[aria-selected="true"], .tab.add[aria-selected="true"], .btn.primary,
  .result button[aria-pressed="true"], .lang button[aria-pressed="true"] { color: #14171c !important; }
}