:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #eef0f3;
  --border: #dfe2e7;
  --text: #15181d;
  --muted: #6b7280;
  --accent: #2f6fed;
  --accent-ink: #ffffff;
  --good: #16a34a;
  --good-soft: #dcfce7;
  --danger: #dc2626;
  --gold: #b7791f;
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #181b21;
    --surface-2: #22262e;
    --border: #2c313a;
    --text: #eceef2;
    --muted: #8b93a1;
    --accent: #5b8cff;
    --accent-ink: #0b0d11;
    --good: #22c55e;
    --good-soft: #143322;
    --danger: #f87171;
    --gold: #f6c453;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}
body.resting { padding-bottom: calc(150px + env(safe-area-inset-bottom)); }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }

.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  padding: calc(12px + env(safe-area-inset-top)) 16px 10px;
}
.top h1 { margin: 0; font-size: 24px; letter-spacing: -0.02em; }
.pill { font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); color: var(--muted); white-space: nowrap; }
.pill:empty { display: none; }
.pill.ok { color: var(--good); }
.pill.warn { color: var(--gold); }

main { max-width: 640px; margin: 0 auto; padding: 4px 16px 24px; display: grid; gap: 14px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.card.accent { border-color: var(--accent); }
.card h2 { margin: 0 0 10px; font-size: 17px; }
.card h3 { margin: 0; font-size: 15px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.gold { color: var(--gold); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.grow2 { flex: 2; min-width: 0; }
.stack { display: grid; gap: 8px; }

.btn { border: 1px solid var(--border); background: var(--surface-2); border-radius: 10px; padding: 11px 14px; font-weight: 600; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { color: var(--danger); background: transparent; }
.btn.block { width: 100%; }
.btn.sm { padding: 6px 10px; font-size: 14px; }
.chip { border: 1px solid var(--border); background: var(--surface-2); border-radius: 999px; padding: 6px 12px; font-size: 14px; font-weight: 600; }
.icon-btn { border: 0; background: transparent; color: var(--muted); padding: 6px 8px; border-radius: 8px; font-size: 15px; }
.icon-btn:hover { background: var(--surface-2); }
.badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); text-decoration: none; }
.badge.gold { color: var(--gold); }
.badge.good { color: var(--good); }

input, select { background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; min-width: 0; }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.field { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
.field input { color: var(--text); font-size: 16px; }

/* início */
.week-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: -6px; }
.week-head .icon-btn { font-size: 22px; line-height: 1; padding: 4px 12px; color: var(--text); }
.week-head .icon-btn:disabled { opacity: .25; cursor: default; }
.week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; text-align: center; }
.day { border: 0; background: transparent; padding: 0; }
.day small { display: block; color: var(--muted); font-size: 12px; }
.day span {
  display: grid; place-items: center; width: 38px; height: 38px; margin: 4px auto 0;
  border-radius: 50%; background: var(--surface); border: 1px solid var(--border); font-weight: 600; font-size: 14px;
}
.day.done span { background: var(--good); border-color: var(--good); color: #fff; }
.day.today span { outline: 2px solid var(--accent); outline-offset: 1px; }
.day.sel small { color: var(--text); font-weight: 700; }
.day.sel:not(.done) span { background: var(--text); border-color: var(--text); color: var(--bg); }
.day.sel.done span { box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--good); }
.day-card h2::first-letter { text-transform: uppercase; }
.day-card .row h2 { margin-bottom: 0; }
.day-card .row { margin-bottom: 10px; }
.day-session + .day-session { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }
.routine {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  width: 100%; text-align: left;
  border: 1px solid var(--border); background: var(--surface-2);
  border-radius: 12px; padding: 12px 14px;
}
.routine.next { border-color: var(--accent); }
.routine strong { font-size: 16px; }
.routine em { font-style: normal; color: var(--accent); font-size: 12px; margin-left: 8px; }
.routine span { color: var(--muted); font-size: 13px; }

/* treino */
.active-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.active-top b { font-size: 22px; font-variant-numeric: tabular-nums; }
.progress { display: flex; gap: 4px; }
.seg { flex: 1; height: 8px; border: 0; padding: 0; border-radius: 4px; background: var(--border); }
.seg.done { background: var(--good); }
.seg.skipped { background: var(--danger); opacity: .45; }
.seg.cur { outline: 2px solid var(--accent); outline-offset: 2px; }
.ex-title { font-size: 22px !important; margin: 4px 0 8px !important; }
.sets { display: grid; gap: 6px; }
.set { display: grid; grid-template-columns: 24px 60px 70px 1fr 44px; gap: 6px; align-items: center; padding: 3px; border-radius: 10px; }
.set.head { font-size: 12px; color: var(--muted); padding-bottom: 0; }
.set.head span { text-align: center; }
.set.head span:nth-child(4) { text-align: left; }
.set .n { text-align: center; font-weight: 700; color: var(--muted); }
.set .prev { font-size: 13px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.set input { width: 100%; text-align: center; padding: 9px 4px; font-size: 17px; }
.set .check { height: 40px; border-radius: 50%; border: 2px solid var(--border); background: transparent; color: transparent; font-size: 18px; font-weight: 700; }
.set.done { background: var(--good-soft); }
.set.done .check { background: var(--good); border-color: var(--good); color: #fff; }
.cardio { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cardio label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
.cardio input { font-size: 22px; text-align: center; color: var(--text); }
.act-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  border: 0; background: transparent; padding: 8px 4px; border-top: 1px solid var(--border); text-align: left;
}
.act-item.cur { font-weight: 700; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); flex: none; }
.dot.done { background: var(--good); }
.dot.skipped { background: var(--danger); opacity: .45; }
.effort { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin: 12px 0; }
.effort button { padding: 12px 0; border-radius: 10px; border: 1px solid var(--border); background: var(--surface-2); font-weight: 700; }
.effort button.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

/* descanso */
.rest {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(80px + env(safe-area-inset-bottom)); z-index: 8;
  display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 999px; padding: 8px 10px;
  box-shadow: 0 8px 30px rgb(0 0 0 / 0.25);
  width: max-content; max-width: calc(100% - 32px);
}
.rest-time { display: grid; text-align: center; min-width: 76px; }
.rest-time small { font-size: 11px; color: var(--muted); }
.rest-time strong { font-size: 20px; font-variant-numeric: tabular-nums; }
.rest.over .rest-time strong { color: var(--good); }

/* navegação */
.tabs {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 9;
  display: grid; grid-template-columns: repeat(5, 1fr);
  background: var(--surface); border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
}
.tabs button { border: 0; background: transparent; color: var(--muted); display: grid; justify-items: center; gap: 2px; padding: 10px 0 8px; font-size: 11px; font-weight: 600; }
.tabs svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.tabs button.on { color: var(--accent); }

/* histórico */
.month { margin: 6px 2px -4px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.session summary { list-style: none; cursor: pointer; }
.session summary::-webkit-details-marker { display: none; }
.session .meta { font-size: 13px; color: var(--muted); }
.entries { margin: 10px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.entries li { border-top: 1px solid var(--border); padding-top: 8px; }
.entries .sets-line { font-size: 14px; color: var(--muted); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 14px 0; }
.stat { background: var(--surface-2); border-radius: 12px; padding: 10px; }
.stat b { display: block; font-size: 20px; }
.stat span { font-size: 12px; color: var(--muted); }

/* fichas */
.it-edit { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 10px 0; border-top: 1px solid var(--border); margin-top: 6px; }
.it-edit .name { flex: 1 1 100%; display: flex; justify-content: space-between; align-items: center; }
.it-edit label { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: var(--muted); }
.it-edit input { width: 56px; padding: 6px; text-align: center; color: var(--text); }
.add-sel { width: 100%; margin-top: 10px; }

/* diálogo e aviso */
dialog { border: 1px solid var(--border); border-radius: 18px; background: var(--surface); color: var(--text); width: min(420px, calc(100% - 32px)); padding: 20px; }
dialog::backdrop { background: rgb(0 0 0 / .5); }
dialog h2 { margin: 0 0 6px; }
.toast {
  position: fixed; left: 50%; top: calc(16px + env(safe-area-inset-top)); transform: translateX(-50%);
  z-index: 20; background: var(--text); color: var(--bg);
  padding: 10px 16px; border-radius: 12px; font-weight: 600; font-size: 14px; max-width: calc(100% - 32px);
}
.empty { text-align: center; padding: 28px 14px; color: var(--muted); }