:root {
  --bg: #f4f1ec;
  --panel: #ffffff;
  --ink: #2d3a4a;
  --muted: #7a8594;
  --line: #e3ddd3;
  --accent: #e07b39;
  --rest: #4f9d8c;
  --done: #4f9d8c;
  --danger: #c4524a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px;
}

.stage, .plan {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
}

.stage-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

h1 { margin: 0; font-size: 1.5rem; }
h2 { margin: 0 0 12px; font-size: 1.1rem; }

.phase-label {
  margin: 0;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--line);
  font-weight: 600;
  font-size: .9rem;
}
.phase-label.work { background: var(--accent); color: #fff; }
.phase-label.rest { background: var(--rest); color: #fff; }

.exercise-card {
  margin: 20px 0;
  text-align: center;
}
.exercise-card img {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 200 / 160;
  background: #faf8f5;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.exercise-card figcaption {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 12px;
}
.step { color: var(--muted); font-size: .9rem; }
.name { font-size: 1.8rem; font-weight: 700; }
.hint { color: var(--muted); min-height: 1.2em; }

.timers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.timer {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  text-align: center;
}
.timer-label {
  display: block;
  color: var(--muted);
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.timer-value {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.bar {
  height: 6px;
  background: var(--line);
  border-radius: 3px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width .2s linear;
}
.bar-fill.rest, .bar-fill.total { background: var(--rest); }

.controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}
.btn {
  min-width: 110px;
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--danger); }
.btn:disabled { opacity: .4; cursor: default; }

.plan ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
.plan li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 8px;
}
.plan li img {
  width: 44px;
  height: 35px;
  flex: none;
}
.plan li .label { flex: 1; font-size: .95rem; }
.plan li .check {
  width: 22px;
  height: 22px;
  flex: none;
  border: 2px solid var(--line);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}
.plan li.current { background: #fbeee4; }
.plan li.done .label { color: var(--muted); text-decoration: line-through; }
.plan li.done .check { background: var(--done); border-color: var(--done); }
.plan li.done .check::after { content: "✓"; }

#confetti {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
}

.sound-cues {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.sound-cues dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 12px;
  margin: 0;
  font-size: .9rem;
}
.sound-cues dt { font-weight: 600; }
.sound-cues dd { margin: 0; color: var(--muted); }
.sound-cues p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: .85rem;
}

.credits {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px 24px;
  color: var(--muted);
  font-size: .8rem;
}
.credits a { color: inherit; }
.about h3 {
  margin: 14px 0 6px;
  color: var(--ink);
  font-size: .85rem;
}
.about p { margin: 0 0 4px; max-width: 70ch; }
.about ul { margin: 0; padding-left: 18px; max-width: 70ch; }

.license { margin-top: 12px; }
.license summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 600;
}
.license h3 {
  margin: 14px 0 6px;
  color: var(--ink);
  font-size: .85rem;
}
.license p { margin: 0; max-width: 70ch; }
.license pre {
  margin: 0;
  padding: 12px;
  overflow-x: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: .75rem;
  white-space: pre-wrap;
}
.credits .creator {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: .95rem;
}

@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .timer-value { font-size: 2.2rem; }
  .btn { min-width: 0; flex: 1; }
}