:root {
  --bg: #f4f1ea;
  --bg-card: #ffffffcc;
  --ink: #1c1b18;
  --ink-soft: #5a564d;
  --ink-faint: #9a9387;
  --line: #e3ddcf;
  --line-soft: #ece6d8;
  --accent: #b1593a;
  --accent-soft: #f1d8cb;
  --good: #4f7a4a;
  --bad: #a4493b;
  --shadow: 0 1px 0 #fff inset, 0 12px 30px -18px rgba(28, 27, 24, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131210;
    --bg-card: #1c1b18cc;
    --ink: #f0ece2;
    --ink-soft: #b8b1a2;
    --ink-faint: #7a7468;
    --line: #2a2824;
    --line-soft: #23211e;
    --accent: #e09275;
    --accent-soft: #3a221a;
    --shadow: 0 1px 0 #2a2824 inset, 0 18px 40px -22px #000;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-rounded, "SF Pro Rounded", "Inter", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(1100px 600px at 50% -10%, rgba(177, 89, 58, 0.08), transparent 60%),
    var(--bg);
}

.shell {
  width: 100%;
  max-width: 460px;
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 28px 26px 22px;
}

.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 11px;
  color: var(--ink-faint);
}

h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-soft);
}

.display {
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 22px 8px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.015));
  margin-bottom: 18px;
}

.time {
  font-feature-settings: "tnum" 1, "lnum" 1;
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  display: inline-flex;
  align-items: baseline;
  line-height: 1;
}

.major {
  font-size: clamp(40px, 12vw, 64px);
}

.minor {
  font-size: clamp(20px, 6vw, 30px);
  color: var(--ink-soft);
  margin-left: 4px;
}

.sep, .dot {
  color: var(--ink-faint);
  font-style: normal;
  margin: 0 2px;
}

.state {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faint);
  transition: color 200ms ease;
}

.state.is-running { color: var(--accent); }
.state.is-paused  { color: var(--ink-soft); }

.controls {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

button {
  font: inherit;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
  transition: transform 80ms ease, background 120ms ease, border-color 120ms ease, color 120ms ease, box-shadow 120ms ease;
  box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset;
}

@media (prefers-color-scheme: dark) {
  button { background: #23211e; }
}

button:hover { border-color: var(--ink-faint); }
button:active { transform: translateY(1px); }
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

.primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.primary:hover { background: #000; }

.primary.is-running {
  background: var(--accent);
  border-color: var(--accent);
}

.laps {
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}

.lap-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 220px;
  overflow-y: auto;
}

.lap {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: baseline;
  padding: 8px 4px;
  border-bottom: 1px solid var(--line-soft);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  font-size: 14px;
}

.lap:last-child { border-bottom: 0; }

.lap .n {
  color: var(--ink-faint);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.lap .split { color: var(--ink); }
.lap .total { color: var(--ink-soft); }

.lap.is-best   .split { color: var(--good); font-weight: 600; }
.lap.is-worst  .split { color: var(--bad);  font-weight: 600; }

.hint {
  margin: 12px 0 0;
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

@media (max-width: 380px) {
  .controls { grid-template-columns: 1fr 1fr; }
  .controls .primary { grid-column: 1 / -1; }
}