/* Zirkel Dojo – base styles. Dark by default, built for sweaty fingers and reading from 2 m. */

:root {
  color-scheme: dark;
  --bg: #0d0f13;
  --surface: #171a21;
  --surface-2: #222631;
  --line: #2f3542;
  --text: #f4f5f7;
  --muted: #a3aab8;
  --accent: #ff7a1a;
  --accent-text: #111;
  --danger: #f87171;
  --radius: 14px;

  /* Phase colours: white text on all of them has at least 4.5:1 contrast */
  --phase-prep: #1d4ed8;
  --phase-warmup: #b45309;
  --phase-work: #dc2626;
  --phase-rest: #15803d;
  --phase-roundRest: #6d28d9;
  --phase-cooldown: #0e7490;
}

* { box-sizing: border-box; }

html, body { margin: 0; background: var(--bg); color: var(--text); }

body {
  font: 17px/1.45 -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

button { font: inherit; color: inherit; touch-action: manipulation; cursor: pointer; }

.muted { color: var(--muted); }

/* ---------- pages (home, done) ---------- */

.page {
  max-width: 560px;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 16px) 16px calc(env(safe-area-inset-bottom) + 32px);
}

.page-head h1 { font-size: 32px; line-height: 1.1; margin: 4px 0 6px; letter-spacing: -0.01em; }
.page-head p { margin: 0 0 8px; font-size: 15px; }
.page h2 { font-size: 20px; margin: 28px 0 10px; }

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  margin: 12px 0;
}

.circuit-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.circuit-head h3 { margin: 0; font-size: 21px; }
.circuit-duration { font-size: 22px; font-weight: 800; font-variant-numeric: tabular-nums; white-space: nowrap; }
.circuit-meta { margin: 4px 0 2px; font-size: 15px; }
.circuit-exercises { margin: 0 0 12px; font-size: 15px; color: var(--muted); }

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 56px;
  padding: 10px 16px;
  border: 0;
  border-radius: 12px;
  background: var(--surface-2);
  font-size: 18px;
  font-weight: 700;
}
.btn:active { filter: brightness(0.85); }
.btn.primary { background: var(--accent); color: var(--accent-text); }
.btn.ghost { background: transparent; border: 2px solid var(--line); }
.btn + .btn { margin-top: 10px; }

/* settings rows */
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
  border-top: 1px solid var(--line);
}
.row:first-of-type { border-top: 0; }
.row-label { font-size: 17px; }
.row-hint { display: block; font-size: 14px; color: var(--muted); }

.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 4px; background: var(--bg); border-radius: 12px; }
.segmented button {
  min-height: 56px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  font-size: 16px;
}
.segmented button[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); }
.mode-hint { font-size: 14px; color: var(--muted); margin: 8px 2px 4px; }

.switch { position: relative; width: 56px; height: 34px; flex: none; }
.switch input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.switch span {
  position: absolute;
  inset: 0;
  border-radius: 17px;
  background: var(--line);
  transition: background 0.2s;
  pointer-events: none;
}
.switch span::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s;
}
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::after { transform: translateX(22px); }
.switch input:focus-visible + span { outline: 2px solid #fff; outline-offset: 2px; }

input[type="range"] { width: 55%; accent-color: var(--accent); min-height: 44px; }

.signal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.signal-grid .btn { min-height: 56px; font-size: 16px; margin: 0; }

.footer { margin-top: 32px; font-size: 13px; color: var(--muted); text-align: center; }

/* ---------- run screen ---------- */

body.running { overflow: hidden; }

.run {
  --phase-color: var(--phase-prep);
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: calc(env(safe-area-inset-top) + 6px) 16px calc(env(safe-area-inset-bottom) + 12px);
  background: var(--phase-color);
  color: #fff;
  transition: background-color 0.25s;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}
.run[data-phase="prep"] { --phase-color: var(--phase-prep); }
.run[data-phase="warmup"] { --phase-color: var(--phase-warmup); }
.run[data-phase="work"] { --phase-color: var(--phase-work); }
.run[data-phase="rest"] { --phase-color: var(--phase-rest); }
.run[data-phase="roundRest"] { --phase-color: var(--phase-roundRest); }
.run[data-phase="cooldown"] { --phase-color: var(--phase-cooldown); }

.run-top { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; font-size: 16px; }
.run-abort {
  min-height: 44px;
  padding: 0 12px;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  border-radius: 10px;
  background: transparent;
  font-size: 15px;
  font-weight: 600;
}
.run-elapsed { font-size: 20px; font-weight: 800; font-variant-numeric: tabular-nums; text-align: center; }
.run-pos { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }

.run-progress { height: 6px; margin-top: 8px; border-radius: 3px; background: rgba(255, 255, 255, 0.25); overflow: hidden; }
.run-progress-bar { height: 100%; width: 0; background: #fff; }

.run-main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.run-phase { font-size: clamp(26px, 8vw, 38px); font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.run-paused {
  margin-top: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.run-time {
  font-size: clamp(110px, 36vw, 200px);
  font-weight: 800;
  line-height: 1;
  margin: 4px 0 8px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}
.run-time[data-long] { font-size: clamp(84px, 27vw, 160px); }
.run[data-paused] .run-time { opacity: 0.55; }
.run-time.final { animation: pulse 1s ease-out infinite; }
@keyframes pulse { 0% { transform: scale(1.06); } 100% { transform: scale(1); } }
@media (prefers-reduced-motion: reduce) { .run-time.final { animation: none; } }

.run-label { font-size: 21px; font-weight: 600; opacity: 0.9; }
.run-exercise {
  max-width: 100%;
  font-size: clamp(30px, 9.5vw, 46px);
  font-weight: 800;
  line-height: 1.12;
  overflow-wrap: anywhere;
}
.run-side {
  margin-top: 10px;
  padding: 4px 14px;
  border: 2px solid #fff;
  border-radius: 999px;
  font-size: 18px;
  font-weight: 800;
}

.run-audio-hint {
  margin: 0 0 10px;
  padding: 12px;
  border-radius: 12px;
  background: #fff;
  color: #111;
  font-weight: 700;
  text-align: center;
}

.run-controls { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.run-controls button {
  min-height: 64px;
  border: 0;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.28);
  font-size: 16px;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.run-controls button:active { background: rgba(0, 0, 0, 0.45); }
.run-controls .run-toggle {
  grid-column: 1 / -1;
  flex-direction: row;
  gap: 10px;
  min-height: 72px;
  background: #fff;
  color: #111;
  font-size: 22px;
}
.run-controls .run-toggle:active { background: #ddd; }
.icon { width: 24px; height: 24px; fill: currentColor; }
.run-add { font-size: 22px; line-height: 24px; font-weight: 800; }
.run-toggle .icon { width: 28px; height: 28px; }

/* confirm dialog */
dialog.confirm {
  width: min(92vw, 420px);
  border: 0;
  border-radius: 18px;
  padding: 20px;
  background: var(--surface);
  color: var(--text);
}
dialog.confirm::backdrop { background: rgba(0, 0, 0, 0.6); }
dialog.confirm h2 { margin: 0 0 6px; font-size: 22px; }
dialog.confirm p { margin: 0 0 16px; color: var(--muted); }
.btn.danger { background: var(--danger); color: #111; }

/* ---------- library screen ---------- */

.lib-head { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 8px; margin: 4px 0 10px; }
.lib-head h1 { font-size: 26px; margin: 0; text-align: center; }
.icon-btn {
  min-height: 44px;
  padding: 0 10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--accent);
  font-size: 16px;
  font-weight: 700;
}
.btn.lib-add { width: auto; min-height: 44px; padding: 0 14px; font-size: 16px; }

.lib-filters { display: grid; gap: 10px; }
.lib-search, .lib-selects select, .lib-form input[type="text"], .lib-form select {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
.lib-selects { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.lib-count { font-size: 14px; color: var(--muted); margin: 14px 2px 6px; }

.ex-row { display: flex; align-items: center; gap: 10px; background: var(--surface); border-radius: var(--radius); padding: 14px; margin: 8px 0; }
.ex-main { flex: 1; min-width: 0; }
.ex-name { margin: 0; font-size: 19px; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.ex-tag { font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: var(--surface-2); color: var(--muted); letter-spacing: 0.03em; }
.ex-tag.own { background: var(--accent); color: var(--accent-text); }
.ex-meta { margin: 4px 0 0; font-size: 14px; color: var(--muted); }
.ex-muscles { margin: 8px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.ex-row .icon-btn { flex: none; background: var(--surface-2); }
.btn.ex-add { width: auto; flex: none; min-height: 44px; padding: 0 14px; font-size: 15px; white-space: nowrap; }
.btn.ex-add.added { background: var(--phase-rest); color: #fff; }

.chip { border: 1px solid var(--line); border-radius: 999px; background: var(--bg); color: var(--text); font-size: 14px; padding: 6px 12px; min-height: 44px; }
.chip.sm { min-height: 0; padding: 3px 9px; font-size: 12px; font-weight: 600; }
.chip.muted { color: var(--muted); }
.chip[aria-pressed="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 700; }

.lib-empty { text-align: center; color: var(--muted); padding: 30px 10px; }

/* create / edit dialog */
dialog.lib-dialog { width: min(94vw, 480px); max-height: 90vh; overflow: auto; }
.lib-form { display: grid; gap: 14px; text-align: left; }
.field { display: grid; gap: 6px; }
.field > span, .field legend { font-size: 14px; color: var(--muted); padding: 0; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.field-warn { margin: 0; font-size: 14px; color: var(--accent); }
.field-warn[data-el="error"] { color: var(--danger); }
fieldset.field { border: 0; margin: 0; padding: 0; }
.chip-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.lib-sides { border-top: 0; min-height: 48px; }
.lib-actions { display: grid; gap: 10px; }
.lib-actions .btn + .btn { margin-top: 0; }
.lib-del-confirm { display: grid; gap: 10px; }
.lib-del-confirm p { margin: 0; color: var(--text); font-weight: 700; }

/* ---------- circuit editor ---------- */

.edit-name { display: grid; gap: 6px; margin: 4px 0 14px; }
.edit-name > span, .edit-settings .field > span { font-size: 14px; color: var(--muted); }
.edit-name input[type="text"], .edit-settings input[type="number"] {
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  width: 100%;
}
.edit-settings input[type="number"] { font-variant-numeric: tabular-nums; }

.edit-duration-card { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.edit-duration-card > span { color: var(--muted); font-size: 15px; }
.edit-duration { font-size: 26px; font-weight: 800; font-variant-numeric: tabular-nums; }

.edit-ex-list { list-style: none; margin: 8px 0; padding: 0; counter-reset: ex; }
.edit-ex {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border-radius: 12px;
  padding: 8px 10px 8px 14px;
  margin: 8px 0;
}
.edit-ex-name { flex: 1; min-width: 0; font-size: 18px; font-weight: 600; display: flex; align-items: center; gap: 8px; overflow-wrap: anywhere; }
.edit-ex-name::before { counter-increment: ex; content: counter(ex) ". "; color: var(--muted); font-weight: 700; }
.edit-ex-time { flex: none; display: flex; align-items: center; gap: 4px; color: var(--muted); font-size: 14px; }
.edit-ex-time input {
  width: 64px;
  min-height: 44px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.edit-ex-ctrl { flex: none; display: flex; gap: 2px; }
.edit-ex-ctrl .icon-btn { min-width: 40px; padding: 0 6px; font-size: 20px; color: var(--text); }
.edit-ex-ctrl .icon-btn[disabled] { opacity: 0.3; }
.icon-btn.danger-text { color: var(--danger); }

.edit-uniform { border-top: 0; margin-top: 4px; }
.edit-actions { margin-top: 24px; }
.edit-actions .btn + .btn { margin-top: 10px; }
.edit-actions .mode-hint { text-align: center; }
.edit-delete { margin-top: 28px; display: grid; gap: 10px; }
.edit-delete .lib-del-confirm { margin-top: 2px; }

/* ---------- home: nav, cards, history ---------- */

.home-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 10px 0 4px; }
.home-nav .btn { margin: 0; }
.home-empty { margin: 8px 2px; }
.circuit-actions { display: grid; grid-template-columns: 2fr 1fr; gap: 8px; margin-top: 4px; }
.circuit-actions .btn { margin: 0; }

.hist-row { display: flex; align-items: flex-start; gap: 12px; }
.hist-main { flex: 1; min-width: 0; }
.hist-main h3 { margin: 0; font-size: 19px; }
.hist-side { flex: none; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.hist-duration { font-size: 22px; font-weight: 800; font-variant-numeric: tabular-nums; }
.hist-status { font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: var(--phase-rest); color: #fff; }
.hist-status.aborted { background: var(--surface-2); color: var(--muted); }

/* ---------- done screen ---------- */

.done { text-align: center; }
.done-kicker { font-size: 18px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin: 24px 0 4px; }
.done-kicker.aborted { color: var(--danger); }
.done h1 { font-size: 30px; margin: 0 0 20px; }
.done-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 24px; }
.done-stats div { background: var(--surface); border-radius: var(--radius); padding: 16px 8px; }
.done-stats dt { font-size: 14px; color: var(--muted); }
.done-stats dd { margin: 2px 0 0; font-size: 30px; font-weight: 800; font-variant-numeric: tabular-nums; }
.done-planned { font-size: 14px; color: var(--muted); margin: -14px 0 24px; }

/* ---------- update hint ---------- */

.update-banner {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(env(safe-area-inset-bottom) + 16px);
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: calc(100vw - 24px);
  padding: 8px 8px 8px 18px;
  border-radius: 999px;
  background: var(--surface-2);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  font-size: 15px;
  font-weight: 600;
}
.update-banner[hidden] { display: none; }
.update-banner button {
  flex: none;
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 800;
  font-size: 15px;
}