:root {
  color-scheme: dark;
  --bg: #0f1115;
  --surface: #181b22;
  --surface-2: #232733;
  --border: #2a2f3b;
  --text: #f2f3f5;
  --muted: #9aa1ad;
  --accent: #22b462;
  --on-accent: #04130a;
  --danger: #f87171;
  --radius: 16px;

  /* Phase colours. Keep in sync with PHASE_COLORS in app.js. */
  --ready: #2f6fed;
  --work: #16a34a;
  --rest: #f59e0b;
  --done: #2a3140;
  --on-ready: #fff;
  --on-work: #fff;
  --on-rest: #1d1300;
  --on-done: #fff;

  --pad-x: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

button, input { font: inherit; color: inherit; }
button { touch-action: manipulation; cursor: pointer; }
[hidden] { display: none !important; }

svg { width: 24px; height: 24px; fill: currentColor; }
svg.stroke { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ---------- App screens ---------- */

.view {
  max-width: 600px;
  margin: 0 auto;
  min-height: 100dvh;
  padding:
    calc(8px + env(safe-area-inset-top))
    calc(var(--pad-x) + env(safe-area-inset-right))
    calc(24px + env(safe-area-inset-bottom))
    calc(var(--pad-x) + env(safe-area-inset-left));
}

.bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 56px;
  margin-bottom: 12px;
}
.bar h1 { flex: 1; margin: 0; font-size: 24px; font-weight: 700; letter-spacing: -0.01em; }

.icon-btn {
  flex: none;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
}
.icon-btn:active { background: var(--surface-2); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 20px;
  border: 0;
  border-radius: 14px;
  font-weight: 600;
}
.btn:active { transform: scale(0.98); }
.btn.wide { width: 100%; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-ghost { background: var(--surface); border: 1px solid var(--border); }
.btn-text { min-height: 44px; padding: 0 12px; background: transparent; color: var(--accent); }
.btn-danger { background: transparent; color: var(--danger); }

/* Preset list */

.preset-list { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 12px; }

.preset {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.preset-start {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 0;
  background: transparent;
  text-align: left;
}
.preset-start:active { background: var(--surface-2); }

.play-dot {
  flex: none;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--on-accent);
}
.play-dot svg { width: 26px; height: 26px; margin-left: 3px; }

.preset-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.preset-name { font-size: 18px; font-weight: 650; }
.preset-summary { color: var(--muted); font-size: 14px; }
.preset-edit { margin-right: 8px; color: var(--muted); }

/* Editor */

.form { display: grid; gap: 14px; }

.field { display: grid; gap: 6px; }
.field-label, .group-title { color: var(--muted); font-size: 14px; }
.group-title { margin: 0; }

input:not([type]), .field input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.group {
  display: grid;
  gap: 12px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.phase-work { border-left: 6px solid var(--work); }
.phase-rest { border-left: 6px solid var(--rest); }

.group .label-input { background: var(--surface-2); font-weight: 600; }

.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.row-label { font-weight: 500; }
.row-hint { margin: 0; color: var(--muted); font-size: 14px; }

.stepper { display: flex; align-items: center; gap: 6px; }
.stepper button {
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: var(--surface-2);
  font-size: 24px;
  line-height: 1;
  user-select: none;
  -webkit-user-select: none;
}
.stepper button:active { background: var(--border); }
.stepper input {
  width: 76px;
  min-height: 48px;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: center;
  font-size: 22px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.seg {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--bg);
  border-radius: 12px;
}
.seg label { flex: 1; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span {
  display: grid;
  place-items: center;
  min-height: 42px;
  padding: 0 6px;
  border-radius: 9px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  text-align: center;
}
.seg input:checked + span { background: var(--surface-2); color: var(--text); }
.seg input:focus-visible + span { outline: 3px solid var(--accent); }

/* Settings sheet */

.sheet {
  width: min(480px, calc(100vw - 2 * var(--pad-x)));
  padding: 20px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 20px;
}
.sheet::backdrop { background: rgb(0 0 0 / 0.6); }
.sheet h2 { margin: 0 0 8px; font-size: 20px; }

.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  border-bottom: 1px solid var(--border);
}
.switch-row small { display: block; color: var(--muted); font-size: 13px; }
.switch-row input { width: 24px; height: 24px; accent-color: var(--accent); flex: none; }
.sheet .row-hint { padding: 8px 0; }
.sheet-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  padding: 12px 18px;
  background: rgb(0 0 0 / 0.85);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  white-space: nowrap;
  z-index: 10;
}

/* ---------- Running screen ---------- */

.run {
  --phase: var(--ready);
  --on-phase: var(--on-ready);
  min-height: 100dvh;
  height: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 12px;
  padding:
    calc(12px + env(safe-area-inset-top))
    calc(var(--pad-x) + env(safe-area-inset-right))
    calc(16px + env(safe-area-inset-bottom))
    calc(var(--pad-x) + env(safe-area-inset-left));
  background: var(--phase);
  color: var(--on-phase);
  transition: background-color 0.25s;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  overflow: hidden;
}
.run[data-kind="work"] { --phase: var(--work); --on-phase: var(--on-work); }
.run[data-kind="rest"] { --phase: var(--rest); --on-phase: var(--on-rest); }
.run[data-kind="done"] { --phase: var(--done); --on-phase: var(--on-done); }

.run-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: clamp(16px, 4.2vmin, 30px);
  font-weight: 650;
  opacity: 0.85;
}

.run-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5vmin;
  min-height: 0;
  text-align: center;
}

.run-label {
  font-size: clamp(30px, 10vmin, 96px);
  font-weight: 800;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* --w is the text width in em, set from JS, so the digits fill the width without overflowing. */
.run-time {
  font-size: min(calc(88vw / var(--w, 2)), 46vh);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 0.9;
  letter-spacing: -0.02em;
}
.run-time.small { font-size: min(calc(50vw / var(--w, 2)), 16vh); opacity: 0.85; }
.run.paused .run-time { animation: blink 1.2s steps(2, jump-none) infinite; }
.run.paused .run-label::after { content: " · paused"; }

.run-tap {
  padding: 0.35em 1.1em;
  border: 4px solid currentColor;
  border-radius: 999px;
  font-size: clamp(24px, 7vmin, 60px);
  font-weight: 800;
  animation: pulse 1.6s ease-in-out infinite;
}
.run.paused .run-tap { animation: none; opacity: 0.5; }

.run-progress {
  width: min(92%, 1000px);
  height: max(10px, 1.6vmin);
  border-radius: 999px;
  background: rgb(0 0 0 / 0.2);
  overflow: hidden;
}
#run-bar { height: 100%; background: currentColor; transform: scaleX(0); transform-origin: left; }

.run-next { font-size: clamp(18px, 5vmin, 40px); font-weight: 650; opacity: 0.9; }

.run-controls, .done-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 4vmin, 32px);
}
.done-controls { display: none; }
.run[data-kind="done"] .run-controls { display: none; }
.run[data-kind="done"] .done-controls { display: flex; }

.ctl {
  position: relative;
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: rgb(0 0 0 / 0.2);
  overflow: hidden;
}
.ctl:active { background: rgb(0 0 0 / 0.32); }
.ctl svg { width: 30px; height: 30px; position: relative; }
.ctl-big { width: 92px; height: 92px; }
.ctl-big svg { width: 42px; height: 42px; }

.ctl-stop { flex-direction: column; }
.ctl-stop svg { width: 24px; height: 24px; }
.ctl-caption { position: relative; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-top: -10px; }
.ctl-stop::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgb(0 0 0 / 0.45);
  transform: scaleY(0);
  transform-origin: bottom;
}
.ctl-stop.holding::before { transform: scaleY(1); transition: transform 0.8s linear; }

.pill {
  min-width: 140px;
  min-height: 64px;
  padding: 0 28px;
  border: 0;
  border-radius: 999px;
  background: rgb(255 255 255 / 0.14);
  font-size: 20px;
  font-weight: 700;
}
.pill:first-child { background: var(--accent); color: var(--on-accent); }

/* Phone on its side: controls move to the right so the digits get the height. */
@media (orientation: landscape) and (max-height: 600px) {
  .run {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto minmax(0, 1fr);
  }
  .run-top { grid-column: 1 / -1; }
  .run-controls, .done-controls { flex-direction: column; justify-content: center; }
  .run[data-kind="done"] .done-controls { display: flex; }
  .run-time { font-size: min(calc(68vw / var(--w, 2)), 58vh); }
  .run-label { font-size: clamp(24px, 9vmin, 64px); }
  .ctl { width: 56px; height: 56px; }
  .ctl-big { width: 76px; height: 76px; }
  .pill { min-width: 120px; min-height: 56px; }
}

@keyframes blink { 50% { opacity: 0.35; } }
@keyframes pulse { 50% { transform: scale(1.06); } }

@media (prefers-reduced-motion: reduce) {
  .run-tap, .run.paused .run-time { animation: none; }
}