:root {
  --bg: #0d0e11;
  --surface: #15171b;
  --surface-sunken: #0f1114;
  --border: #24262c;
  --border-strong: #2b2f37;
  --border-subtle: #1c1e23;
  --chip: #22252b;
  --chip-hover: #2e3239;
  --text: #f2f0ee;
  --text-muted: #c9cbd2;
  --text-dim: #9a9ba2;
  --text-faint: #71737b;
  --text-ghost: #4f5158;
  --accent: #e8503c;
  --accent-hover: #ff6a55;
  --accent-on: #160b09;
  --accent-soft: #ff7a66;
  --accent-dim: #d99a90;
  --accent-border: #6b2a22;
  --success: #4e8a5c;
  --success-text: #8fd3a0;
  --success-bg: rgba(60, 120, 75, 0.12);
  --success-border: #2f4a35;
}

* { box-sizing: border-box; }

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

body {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  padding-bottom: env(safe-area-inset-bottom);
}

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(232, 80, 60, 0.35); }
a:hover { color: var(--accent-hover); border-bottom-color: var(--accent-hover); }

input { font-family: 'IBM Plex Mono', monospace; }
input::-webkit-outer-spin-button, input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }

button { font-family: inherit; cursor: pointer; }

.mono { font-family: 'IBM Plex Mono', monospace; }

.page {
  min-height: 100vh;
  padding: 40px 20px 96px;
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* Header */
.header {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-end;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 22px;
}

.header-left { display: flex; flex-direction: column; gap: 8px; }

.kicker {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.title { margin: 0; font-size: 36px; line-height: 1.02; font-weight: 700; letter-spacing: -0.02em; }

.sub { font-size: 15px; color: var(--text-dim); max-width: 46ch; }

.header-right { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

.week-stepper {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 6px 8px;
}
.week-stepper button {
  width: 30px; height: 30px; border: 0; border-radius: 7px;
  background: var(--chip); color: var(--text); font-size: 17px;
}
.week-stepper button:hover { background: var(--chip-hover); }
.week-num { font-family: 'IBM Plex Mono', monospace; font-size: 20px; font-weight: 600; min-width: 26px; text-align: center; }

.week-cue {
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--text-dim);
  padding: 7px 11px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface);
}

.bw-field {
  display: flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 6px 10px;
}
.bw-field label { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-faint); }
.bw-field input { width: 56px; background: var(--surface-sunken); border: 1px solid var(--border-strong); border-radius: 7px; color: var(--text); padding: 6px 8px; font-size: 13px; }
.bw-field .unit { font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--text-faint); }

.settings-btn {
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text-dim); font-size: 16px;
}
.settings-btn:hover { background: var(--chip-hover); }

/* Settings panel */
.settings-panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 18px 20px; display: flex; flex-direction: column; gap: 14px;
}
.settings-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.settings-row .label { font-size: 14px; color: var(--text-muted); }
.settings-row .desc { font-size: 12px; color: var(--text-faint); max-width: 44ch; }
.seg { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg button { padding: 7px 14px; background: var(--surface-sunken); border: 0; color: var(--text-dim); font-size: 12px; font-family: 'IBM Plex Mono', monospace; }
.seg button.active { background: var(--accent); color: var(--accent-on); }
.toggle { width: 42px; height: 24px; border-radius: 12px; border: 1px solid var(--border-strong); background: var(--surface-sunken); position: relative; }
.toggle .knob { position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 50%; background: var(--text-faint); transition: transform 0.15s ease; }
.toggle.on { background: rgba(78, 138, 92, 0.25); border-color: var(--success-border); }
.toggle.on .knob { transform: translateX(18px); background: var(--success-text); }
.num-input { width: 64px; background: var(--surface-sunken); border: 1px solid var(--border-strong); border-radius: 7px; color: var(--text); padding: 6px 8px; font-size: 13px; }
.backup-buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.ghost-btn {
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border-strong);
  background: transparent; color: var(--text-dim); font-size: 12px; font-family: 'IBM Plex Mono', monospace;
}
.ghost-btn:hover { border-color: var(--text-dim); color: var(--text); }

/* Day tabs */
.day-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.day-tab {
  display: flex; flex-direction: column; gap: 2px;
  padding: 11px 16px; border-radius: 11px; border: 1px solid var(--border);
  background: var(--surface); text-align: left; min-height: 44px; justify-content: center;
}
.day-tab .num { font-family: 'IBM Plex Mono', monospace; font-size: 11px; opacity: 0.65; }
.day-tab .lbl { font-size: 14px; font-weight: 600; color: var(--text-muted); }
.day-tab.active { background: var(--accent); border-color: var(--accent); }
.day-tab.active .num, .day-tab.active .lbl { color: var(--accent-on); }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; }
.card-header {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 20px 22px 16px; border-bottom: 1px solid var(--border);
}
.card-header h2 { margin: 0; font-size: 20px; font-weight: 600; }
.card-header .note { font-size: 13px; color: var(--text-faint); max-width: 52ch; }
.card-header .every { font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--text-faint); }
.card-body { padding: 18px 22px 22px; }

/* Treadmill segments */
.treadmill-bar {
  display: grid; grid-template-columns: 1.1fr 1.6fr 1fr; gap: 4px; min-height: 88px;
}
.tm-seg {
  display: flex; flex-direction: column; justify-content: center; gap: 4px;
  padding: 10px 14px; border: 1px solid var(--border-strong);
}
.tm-seg:nth-child(1) { background: linear-gradient(180deg, #1d2027, #191c22); border-radius: 10px 4px 4px 10px; }
.tm-seg:nth-child(2) { background: linear-gradient(180deg, #232830, #1c2027); border-color: #333944; }
.tm-seg:nth-child(3) { background: linear-gradient(180deg, #3d1b18, #2a1412); border-color: var(--accent-border); border-radius: 4px 10px 10px 4px; }
.tm-seg .time { font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--text-faint); }
.tm-seg .speed { font-family: 'IBM Plex Mono', monospace; font-size: 20px; font-weight: 600; }
.tm-seg:nth-child(3) .speed { color: var(--accent-soft); }
.tm-seg .caption { font-size: 12px; color: var(--text-dim); }
.tm-seg:nth-child(3) .caption { color: var(--accent-dim); }

.treadmill-controls { display: flex; align-items: center; gap: 14px; margin-top: 16px; flex-wrap: wrap; }
.run-toggle {
  padding: 10px 16px; border-radius: 9px; border: 1px solid var(--border-strong);
  background: var(--surface-sunken); color: var(--text-muted); font-size: 13px; font-weight: 600; min-height: 44px;
}
.run-toggle.done { border-color: var(--success-border); background: var(--success-bg); color: var(--success-text); }
.speed-input-wrap { display: flex; align-items: center; gap: 8px; }
.speed-input-wrap input { width: 72px; background: var(--surface-sunken); border: 1px solid var(--border-strong); border-radius: 7px; color: var(--text); padding: 8px; font-size: 14px; min-height: 44px; }
.speed-input-wrap .suffix { font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--text-faint); }
.speed-input-wrap .label { font-size: 12px; color: var(--text-faint); }

/* Circuit */
.move-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; margin-bottom: 18px; }
.move-card { background: var(--surface-sunken); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.move-card .count { font-family: 'IBM Plex Mono', monospace; font-size: 26px; font-weight: 600; }
.move-card .name { font-size: 14px; font-weight: 600; margin-top: 4px; }
.move-card .note { font-size: 12px; color: var(--text-faint); margin-top: 4px; }

.circuit-panels { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; }
.panel { background: var(--surface-sunken); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.clock { font-family: 'IBM Plex Mono', monospace; font-size: 40px; font-weight: 600; text-align: center; }
.clock.warn { color: var(--accent-soft); }
.clock.done { color: var(--success-text); }
.clock-status { text-align: center; font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 4px; }
.progress-track { height: 4px; background: var(--border); border-radius: 2px; margin: 12px 0; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); transition: width 0.25s linear; }
.clock-buttons { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.btn-primary { padding: 10px 18px; border-radius: 9px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-on); font-size: 13px; font-weight: 600; min-height: 44px; }
.btn-primary.outline { background: transparent; color: var(--accent); }
.btn-plain { padding: 10px 16px; border-radius: 9px; border: 1px solid var(--border-strong); background: transparent; color: var(--text-dim); font-size: 13px; min-height: 44px; }

.rounds-count { font-family: 'IBM Plex Mono', monospace; font-size: 40px; font-weight: 600; text-align: center; }
.rounds-buttons { display: flex; gap: 8px; justify-content: center; margin-top: 10px; flex-wrap: wrap; }
.partreps-row { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 12px; }
.partreps-row input { width: 66px; background: var(--bg); border: 1px solid var(--border-strong); border-radius: 7px; color: var(--text); padding: 8px; font-size: 14px; text-align: center; min-height: 44px; }
.partreps-row label { font-size: 12px; color: var(--text-faint); }
.rounds-hint { text-align: center; font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--text-faint); margin-top: 8px; }

.footer-note { font-size: 12px; color: var(--text-faint); margin-top: 16px; }

/* Exercise rows */
.exercise-row {
  display: grid; grid-template-columns: minmax(230px, 1.25fr) minmax(260px, 1fr);
  gap: 18px; padding: 18px 22px; border-bottom: 1px solid var(--border-subtle);
}
.exercise-row:last-child { border-bottom: 0; }
.ex-left .name { font-size: 16px; font-weight: 600; }
.ex-left .guide { font-family: 'IBM Plex Mono', monospace; font-size: 11px; margin-left: 8px; }
.ex-left .focus { font-size: 13px; color: var(--text-dim); margin-top: 4px; }
.ex-chips { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.chip-tag { font-family: 'IBM Plex Mono', monospace; font-size: 11px; background: var(--chip); border-radius: 5px; padding: 4px 7px; color: var(--text-muted); }

.set-rows { display: flex; flex-direction: column; gap: 8px; }
.set-row { display: flex; align-items: center; gap: 10px; padding: 6px 8px; border-radius: 9px; flex-wrap: wrap; }
.set-row.done { background: var(--success-bg); border: 1px solid var(--success-border); }
.set-row:not(.done) { border: 1px solid transparent; }
.tick-btn {
  width: 44px; height: 44px; border-radius: 8px; border: 1px solid var(--border-strong);
  background: var(--surface-sunken); color: var(--bg); font-size: 15px; flex-shrink: 0;
}
.tick-btn.checked { background: var(--success); border-color: var(--success); color: var(--surface-sunken); }
.set-label { font-family: 'IBM Plex Mono', monospace; font-size: 11px; width: 40px; color: var(--text-faint); flex-shrink: 0; }
.set-inputs { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.set-inputs input { width: 62px; background: var(--surface-sunken); border: 1px solid var(--border-strong); border-radius: 7px; color: var(--text); padding: 8px; font-size: 14px; min-height: 44px; text-align: center; }
.set-inputs .x { color: var(--text-faint); font-size: 13px; }
.set-hint { font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--text-ghost); width: 100%; }

/* Text list cards */
.list-card ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.list-card li { display: flex; gap: 12px; font-size: 14px; color: var(--text-muted); }
.list-card .idx { font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--accent); width: 20px; flex-shrink: 0; }

.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }

.clear-row { display: flex; justify-content: flex-end; }

.day-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* Read-only overview */
.readonly-ex { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 22px; border-bottom: 1px solid var(--border-subtle); flex-wrap: wrap; }
.readonly-ex:last-child { border-bottom: 0; }
.readonly-ex .name { font-size: 15px; font-weight: 600; }
.readonly-ex .focus { font-size: 12px; color: var(--text-faint); }

/* Responsive */
@media (max-width: 640px) {
  .page { padding: 24px 14px 96px; }
  .title { font-size: 28px; }
  .exercise-row { grid-template-columns: 1fr; }
  .header { align-items: flex-start; }
  .set-row { padding: 8px; }
  .tick-btn { width: 44px; height: 44px; }
}

.install-banner {
  background: var(--surface); border: 1px solid var(--accent-border); border-radius: 12px;
  padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.install-banner .txt { font-size: 13px; color: var(--text-dim); }
.install-banner button { background: var(--accent); color: var(--accent-on); border: 0; border-radius: 8px; padding: 8px 14px; font-size: 12px; font-weight: 600; }