/* Мінімальне оформлення: мобільний у пріоритеті. Дизайн — пізніше. */
:root {
  --bg: #f3f4f6; --card: #fff; --ink: #111827; --muted: #6b7280; --line: #e5e7eb;
  --accent: #2563eb; --ok: #059669; --warn: #d97706; --bad: #dc2626;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-size: 16px; line-height: 1.35; }
input, select, button { font: inherit; font-size: 16px; color: inherit; }
input, select {
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; background: #fff; min-height: 42px;
}
input[type=number] { width: 100%; }
button { cursor: pointer; }

.top { position: sticky; top: 0; z-index: 5; background: #1f2937; color: #fff; padding: 8px 12px; padding-top: max(8px, env(safe-area-inset-top)); }
.top-row { display: flex; gap: 8px; align-items: center; justify-content: space-between; max-width: 760px; margin: 0 auto; }
.top input { background: #374151; color: #fff; border-color: #4b5563; min-height: 38px; padding: 6px 8px; min-width: 0; color-scheme: dark; }
.top #date { flex: 1 1 auto; max-width: 170px; }
.top #at { width: 96px; }
.clock { display: flex; gap: 6px; align-items: center; flex: 0 0 auto; }
html, body { overflow-x: hidden; }
.chip { border: 1px solid #4b5563; background: transparent; color: #d1d5db; border-radius: 999px; padding: 6px 10px; }
.chip.on { background: var(--ok); border-color: var(--ok); color: #fff; }

main { max-width: 760px; margin: 0 auto; padding: 10px 10px calc(80px + env(safe-area-inset-bottom)); }
.card { background: var(--card); border-radius: 12px; padding: 14px; margin-bottom: 10px; box-shadow: 0 1px 2px rgba(0,0,0,.05); }
.card:empty { display: none; }
h2 { font-size: 17px; margin: 0 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.center { text-align: center; margin-top: 6px; }
.warn { color: var(--warn); }
.sub { margin: 12px 0 4px; font-weight: 600; }

.field { display: flex; flex-direction: column; gap: 4px; }
.big-input { font-size: 22px; font-weight: 600; }
.wrow { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 4px 0; }
.wname { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stepper { display: flex; align-items: center; gap: 4px; }
.stepper input { width: 64px; text-align: center; }
.stepper button { width: 42px; height: 42px; border: 1px solid var(--line); background: #f9fafb; border-radius: 8px; font-size: 20px; }

.label { color: var(--muted); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 6px 0 10px; }
.hero-grid small { color: var(--muted); font-size: 13px; }
.hero .bignum { font-size: 40px; margin: 0; }
.bignum { font-size: 44px; font-weight: 700; line-height: 1.1; margin: 2px 0 8px; font-variant-numeric: tabular-nums; }
.bar { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; margin-bottom: 10px; }
.bar i { display: block; height: 100%; background: var(--accent); }
.kv { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }

.btn-down { width: 100%; min-height: 56px; border: 0; border-radius: 10px; background: var(--warn); color: #fff; font-size: 18px; font-weight: 600; }
.btn-down.stop { background: var(--bad); }

.line { border-top: 1px solid var(--line); padding: 10px 0 4px; }
.line:first-of-type { border-top: 0; padding-top: 0; }
.line-head { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: baseline; margin-bottom: 6px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.grid3 > div { background: #f9fafb; border-radius: 8px; padding: 6px 8px; }
.grid3 small { display: block; color: var(--muted); font-size: 12px; }
.grid3 b { font-size: 20px; font-variant-numeric: tabular-nums; }
.grid3 s, .tbl s { color: var(--muted); font-size: 12px; margin-left: 4px; }
.st { font-size: 13px; padding: 2px 8px; border-radius: 999px; background: #eef2ff; color: #3730a3; }
.st-work { background: #ecfdf5; color: #065f46; }
.st-break { background: #fef3c7; color: #92400e; }
.st-down { background: #fee2e2; color: #991b1b; }
.st-buffer, .st-done, .st-before { background: #f3f4f6; color: var(--muted); }

.tbl { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; font-size: 15px; }
.tbl th { text-align: left; font-weight: 500; color: var(--muted); font-size: 13px; padding: 4px; border-bottom: 1px solid var(--line); }
.tbl td { padding: 6px 4px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl .num { text-align: right; }
.tbl tr.past { color: var(--muted); }
.tbl tr.cur { background: #eff6ff; }
.tbl tr.break td, .tbl tr.buffer td { background: #fafafa; font-size: 14px; }

.drow { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }
.drow > * { flex: 0 0 auto; }
.drow input, .drow select { min-width: 0; }
.drow input[type=time] { flex: 1 1 0; max-width: 120px; padding: 8px 6px; }
.drow select { flex: 1 1 0; }
.drow .grow { flex: 1 1 0; }
.drow .num-s { width: 72px; }
.drow .num-m { width: 110px; }
.drow .lbl { min-width: 130px; }
.drow .dur { min-width: 44px; color: var(--muted); font-size: 14px; }
.pct { display: inline-flex; align-items: center; gap: 4px; }
.pct input { width: 64px; }
.indent { margin-left: 14px; }
.group { border-top: 1px solid var(--line); padding-top: 10px; margin-top: 4px; }
.x { width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; border-radius: 8px; color: var(--muted); }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 8px 14px; border: 1px solid var(--accent); color: var(--accent); background: #fff; border-radius: 8px; }
.btn.small { min-height: 36px; padding: 4px 10px; font-size: 14px; }
.btn.danger { border-color: var(--bad); color: var(--bad); }
.btns { display: flex; gap: 8px; flex-wrap: wrap; }

.tabs {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 5; display: flex; background: #fff;
  border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom);
}
.tabs button { flex: 1; border: 0; background: none; padding: 14px 2px; color: var(--muted); font-size: 14px; }
.tabs button.active { color: var(--accent); font-weight: 600; box-shadow: inset 0 3px 0 var(--accent); }

@media (min-width: 900px) {
  .tabs { position: sticky; top: 54px; max-width: 760px; margin: 0 auto; border: 0; background: var(--bg); }
  .tabs button.active { box-shadow: inset 0 -3px 0 var(--accent); }
  main { padding-bottom: 30px; }
  body { display: flex; flex-direction: column; }
  .top { order: 0; } .tabs { order: 1; } main { order: 2; width: 100%; }
}

.fact-row { display: flex; gap: 8px; align-items: flex-end; }
.fact-row .grow { flex: 1; min-width: 0; }
.fact-row input[type=time] { width: 104px; }
.fact { margin: 10px 0 4px; }
.fact.good b { color: var(--ok); }
.fact.bad b { color: var(--bad); }

.offline { background: #fef3c7; color: #92400e; font-size: 14px; padding: 6px 12px; text-align: center; }
.login { position: fixed; inset: 0; z-index: 20; background: var(--bg); display: flex; align-items: center; justify-content: center; padding: 16px; }
.login[hidden], .offline[hidden] { display: none; }
.login form { width: 100%; max-width: 360px; }
.login .btn-down { background: var(--accent); margin-top: 6px; }
.err { color: var(--bad); min-height: 1.2em; margin: 8px 0; }
.hero .bignum.range { font-size: 28px; white-space: nowrap; line-height: 48px; }
.lines-tbl .st { display: inline-block; margin-top: 3px; font-size: 12px; }
.lines-tbl td { vertical-align: middle; }