:root {
  --bg: #f4f7f6;
  --surface: #ffffff;
  --text: #13201f;
  --muted: #5b6b69;
  --line: #dbe3e1;
  --accent: #0f766e;
  --accent-text: #ffffff;
  --accent-soft: #e0f2ef;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --warn-soft: #fff6e0;
  --warn-line: #e8c46a;
  --radius: 14px;
  --tap: 48px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1416;
    --surface: #132124;
    --text: #e6efed;
    --muted: #93a6a3;
    --line: #26393c;
    --accent: #2bb3a3;
    --accent-text: #04201d;
    --accent-soft: #123c38;
    --danger: #ff7a6b;
    --danger-soft: #3a1714;
    --warn-soft: #34290f;
    --warn-line: #8a6d1f;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(72px + env(safe-area-inset-bottom));
}
a { color: var(--accent); }
h1 { font-size: 1.5rem; margin: 0.6rem 0 0.8rem; line-height: 1.2; }
h2 { font-size: 1.1rem; margin: 0; }
h3 { font-size: 0.95rem; margin: 1rem 0 0.3rem; }
p { margin: 0.4rem 0; }
.muted { color: var(--muted); }
.small, small { font-size: 0.85rem; }

.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  background: var(--surface); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
.sync { font-size: 0.8rem; text-decoration: none; padding: 4px 10px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); }
.sync.pending, .sync.offline { background: var(--warn-soft); color: var(--text); }
.sync.error { background: var(--danger-soft); color: var(--danger); }

main { max-width: 640px; margin: 0 auto; padding: 8px 16px 24px; }

.tabs {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 5;
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
  background: var(--surface); border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.tabs a { text-align: center; padding: 14px 4px; text-decoration: none; color: var(--muted); font-size: 0.9rem; }
.tabs a.active { color: var(--accent); font-weight: 600; }
body.public .tabs, body.public .sync { display: none; }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; margin: 12px 0;
}
.card.empty { text-align: center; color: var(--muted); }
details.card > summary { cursor: pointer; font-weight: 600; min-height: 28px; }
details.card[open] > summary { margin-bottom: 10px; }

.row { display: flex; gap: 8px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
form.row > input, form.row > select { flex: 1; min-width: 0; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

label { display: flex; flex-direction: column; gap: 4px; font-size: 0.9rem; color: var(--muted); }
label.check { flex-direction: row; align-items: flex-start; gap: 10px; color: var(--text); font-size: 1rem; }
label.check input { width: 22px; height: 22px; margin-top: 2px; flex: none; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; min-height: var(--tap); width: 100%;
}
textarea { min-height: auto; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.btn {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: var(--tap); padding: 10px 18px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--surface); color: var(--text); font: inherit; font-weight: 600;
  text-decoration: none; cursor: pointer; text-align: center;
}
.btn.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--danger); }
.btn.small { min-height: 40px; padding: 6px 14px; font-size: 0.9rem; }
.btn.big { min-height: 60px; font-size: 1.15rem; width: 100%; }
.btn small { font-weight: 400; opacity: 0.85; }
.btn:disabled { opacity: 0.4; }
main > .btn { width: 100%; margin-top: 8px; }
.link { background: none; border: 0; color: var(--accent); font: inherit; padding: 8px 4px; cursor: pointer; }
.link.danger { color: var(--danger); }
.icon {
  width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--surface); color: var(--text); font-size: 1.1rem; cursor: pointer;
}
.icon:disabled { opacity: 0.3; }
.back { display: inline-block; padding: 8px 0; text-decoration: none; }
.tag.state-pending { background: var(--warn-soft); }
.tag.state-warn { background: var(--danger-soft); color: var(--danger); }
.tag.state-ok { background: var(--accent-soft); color: var(--accent); }
.review-meta { margin-top: 4px; color: var(--muted); }
.tag { font-size: 0.75rem; padding: 2px 8px; border-radius: 99px; background: var(--warn-soft); color: var(--text); font-weight: 400; }
.note { background: var(--warn-soft); border: 1px solid var(--warn-line); border-radius: 10px; padding: 10px 12px; font-size: 0.9rem; }
.hint { font-size: 0.85rem; color: var(--muted); margin: 0; }
.disclaimer { font-size: 0.8rem; color: var(--muted); margin-top: 24px; text-align: center; }
[inert] { opacity: 0.6; }

.auth { max-width: 420px; margin: 8vh auto 0; }
.auth h1 { font-size: 2rem; margin-bottom: 0; }

.resume { display: flex; justify-content: space-between; align-items: center; text-decoration: none; color: var(--text); background: var(--accent-soft); border-color: var(--accent); }
.days { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; margin-top: 10px; }

.items { list-style: none; padding: 0; margin: 10px 0; counter-reset: item; }
.items li { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-top: 1px solid var(--line); }
.items li > div:first-child::before { counter-increment: item; content: counter(item) ". "; color: var(--muted); }
.item-actions { display: flex; gap: 4px; flex: none; }

.search input { font-size: 1.1rem; }
.results { list-style: none; padding: 0; margin: 8px 0; }
.results button {
  width: 100%; text-align: left; display: flex; flex-direction: column; gap: 2px;
  padding: 12px 14px; margin-bottom: 6px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--surface); color: var(--text); font: inherit; cursor: pointer;
}
.results small { color: var(--muted); }

.list { list-style: none; padding: 0; margin: 0; }
.list > li > a { display: flex; flex-direction: column; padding: 12px 14px; margin-bottom: 8px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); text-decoration: none; color: var(--text); }
.list.compact > li { padding: 8px 0; border-top: 1px solid var(--line); }
.list.compact > li:first-child { border-top: 0; }
.rejected { background: var(--danger-soft); border-radius: 10px; padding: 10px 12px; margin: 10px 0; }

dialog {
  border: 0; border-radius: var(--radius); padding: 18px; width: min(560px, calc(100vw - 24px));
  background: var(--surface); color: var(--text); max-height: 90vh; overflow: auto;
}
dialog::backdrop { background: rgb(0 0 0 / 0.5); }

.toast {
  position: fixed; left: 50%; bottom: calc(84px + env(safe-area-inset-bottom)); transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px;
  opacity: 0; pointer-events: none; transition: 0.2s; max-width: calc(100vw - 32px); z-index: 20;
}
.toast.show { opacity: 1; transform: translateX(-50%); }
.toast.error { background: var(--danger); color: #fff; }

/* ───── modo treino ───── */
.train-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 0.9rem; }
.stop { background: var(--danger-soft); border-radius: 12px; padding: 10px 14px; margin: 8px 0; font-size: 0.92rem; }
.stop summary { font-weight: 700; color: var(--danger); cursor: pointer; }
.chips { display: flex; gap: 6px; overflow-x: auto; padding: 4px 0; scrollbar-width: none; }
.chip {
  flex: none; display: flex; flex-direction: column; align-items: center; min-width: 48px; padding: 6px 8px;
  border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--text); font: inherit; font-weight: 700;
}
.chip small { font-weight: 400; font-size: 0.7rem; color: var(--muted); }
.chip.current { border-color: var(--accent); outline: 2px solid var(--accent); }
.chip.partial { background: var(--warn-soft); }
.chip.done { background: var(--accent-soft); }
.exercise h1 { margin-top: 0; }
.prescription { font-size: 1.1rem; font-weight: 600; }
.prof-note { background: var(--accent-soft); border-radius: 8px; padding: 6px 10px; }
.equipment { margin: 8px 0; }
.last { color: var(--muted); font-size: 0.92rem; }
.howto { margin: 10px 0; border-top: 1px solid var(--line); padding-top: 8px; }
.howto summary { font-weight: 600; cursor: pointer; padding: 6px 0; }
.content ol, .content ul { padding-left: 1.3rem; margin: 0.2rem 0; }
.muscles { color: var(--muted); font-size: 0.9rem; margin-top: -2px; }
.muscles span { opacity: 0.85; }
.figs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 8px 0 4px; }
/* Ilustrações são traço preto em fundo branco: mantêm o fundo claro também no tema escuro. */
.figs img { width: 100%; height: 190px; object-fit: contain; background: #fff; border-radius: 10px; border: 1px solid var(--line); }
.credit { font-size: 0.72rem; color: var(--muted); margin: 0 0 6px; }
.provenance { font-size: 0.8rem; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 6px; margin-top: 10px; }

.sets { list-style: none; padding: 0; margin: 10px 0; }
.sets li { margin-bottom: 6px; }
.sets button, .sets.readonly li {
  width: 100%; display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: center;
  padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--accent-soft);
  color: var(--text); font: inherit; text-align: left;
}
.sets small { color: var(--muted); }
.sets.readonly li.corrected { background: transparent; text-decoration: line-through; color: var(--muted); }

.rest { text-align: center; padding: 12px; margin: 10px 0; border-radius: 12px; border: 2px solid var(--accent); }
.rest.over { border-color: var(--danger); background: var(--danger-soft); }
.rest-label { font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.rest-clock { font-size: 3.2rem; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.1; }
.rest-buttons { display: grid; grid-template-columns: auto 1fr auto; gap: 8px; margin-top: 8px; }

.set-input { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); }
.set-title { font-weight: 700; }
.stepper { display: grid; grid-template-columns: 1fr 56px 96px 56px; gap: 6px; align-items: center; }
.stepper span { color: var(--muted); font-size: 0.95rem; }
.stepper button {
  height: 56px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface);
  color: var(--text); font-size: 1.5rem; cursor: pointer;
}
.stepper input { height: 56px; text-align: center; font-size: 1.4rem; font-weight: 700; padding: 0; }
.nav { margin: 12px 0; }
.nav .btn { flex: 1; }