:root {
  --bg: #0f1115;
  --card: #1a1d24;
  --card2: #22262f;
  --fg: #e9ecf1;
  --muted: #9aa3b2;
  --accent: #4f8cff;
  --work: #1e7d4f;
  --rest: #2b5c9e;
  --warm: #9a6b1e;
  --remate: #6b3fa0;
  --err: #ff6b6b;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
}
#app { min-height: 100%; }
#app.loading { display: grid; place-items: center; color: var(--muted); }

.pane {
  max-width: 560px;
  margin: 0 auto;
  padding: 20px 16px calc(28px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.pane.center { min-height: 100vh; justify-content: center; }

h1, h2 { margin: 0; }
.brand { font-size: 26px; letter-spacing: 0.5px; }
h2 { font-size: 18px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.err { color: var(--err); min-height: 1em; margin: 4px 0 0; }
.mt { margin-top: 10px; }

.row { display: flex; align-items: center; gap: 10px; }
.row.between { justify-content: space-between; }
.col { display: flex; flex-direction: column; }
.col.gap, .gap { gap: 10px; }

.card {
  background: var(--card);
  border: 1px solid #2a2e38;
  border-radius: var(--radius);
  padding: 14px;
  text-decoration: none;
  color: inherit;
}
.card.day:active { background: var(--card2); }

.pill, .note.warn {
  font-size: 12px;
  background: #2a2e38;
  color: var(--muted);
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.note.warn {
  border-radius: var(--radius);
  padding: 10px 12px;
  color: #ffce88;
  background: #3a2c14;
}

label { color: var(--muted); font-size: 14px; }
input, select, button {
  font: inherit;
  color: var(--fg);
}
input, select {
  background: var(--card2);
  border: 1px solid #333844;
  border-radius: 10px;
  padding: 12px;
  width: 100%;
}
input[type="checkbox"] { width: auto; }

button {
  cursor: pointer;
  border: 0;
  border-radius: 10px;
  padding: 12px 16px;
  background: var(--card2);
}
button:disabled { opacity: 0.4; }
.primary { background: var(--accent); color: #fff; font-weight: 600; }
.ghost { background: transparent; color: var(--muted); padding: 8px; }
.btn {
  display: block;
  text-align: center;
  text-decoration: none;
  color: var(--fg);
  background: var(--card);
  border: 1px solid #2a2e38;
  border-radius: 10px;
  padding: 14px;
}
.big-btn { width: 100%; padding: 16px; font-size: 17px; margin-top: 6px; }
.big { font-size: 22px; font-weight: 700; }

.stepper { display: flex; align-items: center; gap: 18px; }
.stepper button { width: 52px; height: 52px; font-size: 24px; }
.stepper .big { min-width: 40px; text-align: center; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid #262a33; }
th { color: var(--muted); font-weight: 500; }

/* ---------------- run screen ---------------- */
.run {
  min-height: 100vh;
  justify-content: center;
  text-align: center;
  position: relative;
  transition: background 0.3s;
}
.run[data-kind="work"] { background: linear-gradient(180deg, #0f1115, var(--work)); }
.run[data-kind="rest"] { background: linear-gradient(180deg, #0f1115, var(--rest)); }
.run[data-kind="warmup"] { background: linear-gradient(180deg, #0f1115, var(--warm)); }
.run[data-kind="work"][data-phase] { }
.run .run-top { display: flex; justify-content: space-between; font-size: 15px; color: #dfe5ef; }
.phase { text-transform: uppercase; letter-spacing: 1px; }
.digits {
  font-size: clamp(76px, 26vw, 140px);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin: 8px 0;
}
.exname { font-size: 24px; font-weight: 700; }
.next { color: #cfd6e2; font-size: 14px; margin-top: 6px; }
.bar { height: 6px; background: #ffffff22; border-radius: 999px; overflow: hidden; margin: 14px 0; }
.fill { height: 100%; width: 0; background: #fff; transition: width 0.3s; }
.run-controls { display: flex; gap: 10px; }
.run-controls button { flex: 1; padding: 18px 0; font-size: 20px; }

.overlay {
  position: fixed;
  inset: 0;
  background: #0f1115ee;
  display: none;
  place-items: center;
  padding: 20px;
}
.overlay.show { display: grid; }
.overlay .card { width: 100%; max-width: 420px; }
.overlay .big-btn { max-width: 420px; }

#toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(20px);
  background: #000c;
  color: #fff;
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 14px;
  opacity: 0;
  transition: all 0.25s;
  pointer-events: none;
  max-width: 90vw;
  text-align: center;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------------- dashboard ---------------- */
.dash section { display: flex; flex-direction: column; gap: 10px; }
.dash h3 { margin: 0; font-size: 15px; font-weight: 600; }
.dash h3 .small { font-weight: 400; }
.cw { position: relative; height: 220px; }
.cw.sm { height: 170px; }
.subchart { display: flex; flex-direction: column; gap: 6px; }

.heat { display: flex; flex-direction: column; gap: 3px; }
.hrow { display: flex; align-items: center; gap: 8px; }
.hlabel { color: var(--muted); font-size: 11px; width: 38px; text-align: right; flex: none; }
.hcells { display: grid; grid-template-columns: repeat(7, 18px); gap: 3px; }
.hc {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  background: #ffffff10;
}
.hc.on { background: var(--work); }
.hc.dl { background: var(--remate); }
.hcount { color: var(--muted); font-size: 11px; margin-left: 4px; flex: none; }
.hcount.ok { color: #3fae6b; }