:root {
  --bg: #0e0e0e;
  --card: #1a1a1a;
  --border: #2a2a2a;
  --accent: #ff3c3c;
  --text: #f0f0f0;
  --muted: #888;
  --row-a: #1a1a1a;
  --row-b: #141414;
  --tab-bg: #1a1a1a;
  --tab-active-bg: #1f1010;
  --focus-bg: linear-gradient(135deg, #1f1010, #1a1a1a);
  --cardio-bg: #1a1500;
  --cardio-border: #3a3000;
  --cardio-text: #aaa;
}

body.light {
  --bg: #f2f2f2;
  --card: #ffffff;
  --border: #ddd;
  --accent: #d92b2b;
  --text: #111;
  --muted: #888;
  --row-a: #ffffff;
  --row-b: #f9f9f9;
  --tab-bg: #e8e8e8;
  --tab-active-bg: #fdeaea;
  --focus-bg: linear-gradient(135deg, #fdeaea, #fff);
  --cardio-bg: #fffbe6;
  --cardio-border: #f0d060;
  --cardio-text: #666;
}

* { box-sizing: border-box; margin: 0; padding: 0; user-select: none; -webkit-user-select: none; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  min-height: 100dvh;
  max-width: 600px;
  margin: 0 auto;
}

.theme-toggle {
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 5px 12px;
  cursor: pointer;
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  color: var(--muted);
  -webkit-tap-highlight-color: transparent;
  transition: all 0.2s;
  white-space: nowrap;
}

body.light .theme-toggle {
  border-color: rgba(0,0,0,0.15);
}

.theme-toggle:active { opacity: 0.7; }

.bar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.manage-link {
  font-size: 18px;
  text-decoration: none;
  color: var(--muted);
  -webkit-tap-highlight-color: transparent;
  transition: color 0.15s;
  line-height: 1;
}

.manage-link:active { opacity: 0.7; }

.content {
  padding: 10px 16px 16px;
}

.day-panel { display: none; }
.day-panel.active { display: block; }

.focus-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding: 12px 16px;
  background: var(--focus-bg);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
}

.focus-bar .focus-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 26px;
  letter-spacing: 2px;
  color: var(--text);
}

.focus-bar .focus-sub {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.exercise-list {
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 12px;
}

.exercise-row {
  display: grid;
  grid-template-columns: 1fr 52px 80px;
  align-items: center;
  padding: 14px 14px;
  background: var(--row-a);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.exercise-row:nth-child(even) { background: var(--row-b); }
.exercise-row:last-child { border-bottom: none; }

.exercise-row.done {
  opacity: 0.4;
}

.exercise-row.done .ex-name {
  text-decoration: line-through;
}

.ex-name {
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ex-name::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  transition: all 0.15s;
}

.exercise-row[data-completed-sets]:not([data-completed-sets="0"]):not(.done) .ex-name::before {
  border-color: var(--accent);
}

.exercise-row.done .ex-name::before {
  background: var(--accent);
  border-color: var(--accent);
  content: '✓';
  color: white;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ex-sets {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 26px;
  color: var(--muted);
  text-align: center;
  letter-spacing: 1px;
}

.exercise-row[data-completed-sets]:not([data-completed-sets="0"]):not(.done) .ex-sets {
  color: var(--accent);
}

.exercise-row.done .ex-sets {
  color: var(--accent);
}

.ex-sets-label {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
  line-height: 1;
  margin-top: -2px;
}

.ex-reps {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 20px;
  color: var(--text);
  text-align: right;
  line-height: 1.1;
  letter-spacing: 0.5px;
}

.ex-reps-label {
  display: block;
  font-family: 'DM Sans', sans-serif;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

.cardio-block {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--cardio-bg);
  border: 1.5px solid var(--cardio-border);
  border-radius: 12px;
}

.cardio-icon { font-size: 26px; flex-shrink: 0; }

.cardio-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 17px;
  letter-spacing: 1.5px;
  color: #cc9900;
  line-height: 1;
  margin-bottom: 3px;
}

body.light .cardio-title { color: #997700; }

.cardio-desc {
  font-size: 14px;
  color: var(--cardio-text);
  line-height: 1.4;
}

.col-headers {
  display: grid;
  grid-template-columns: 1fr 52px 80px;
  padding: 0 14px 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
}

.col-headers span:nth-child(2) { text-align: center; }
.col-headers span:nth-child(3) { text-align: right; }

/* Bottom tabs */
.tabs {
  display: flex;
  gap: 8px;
  padding: 10px 16px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.tab {
  flex: 1;
  background: var(--tab-bg);
  border: 1.5px solid var(--border);
  color: var(--muted);
  font-family: 'Bebas Neue', sans-serif;
  font-size: 28px;
  letter-spacing: 1.5px;
  padding: 14px 8px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}

.tab .day-label {
  display: block;
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 1px;
  color: var(--muted);
}

.tab.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--tab-active-bg);
}

.tab.active .day-label { color: var(--accent); }

/* ── Circuit Training ── */

body.circuit-border::after {
  content: '';
  position: fixed;
  inset: 0;
  border: 4px solid var(--circuit-border-color, transparent);
  box-shadow: inset 0 0 40px var(--circuit-glow-color, transparent);
  pointer-events: none;
  z-index: 9999;
  transition: border-color 0.3s, box-shadow 0.3s;
}

body.circuit-border.circuit-phase-active  { --circuit-border-color: #22c55e; --circuit-glow-color: rgba(34, 197, 94, 0.15); }
body.circuit-border.circuit-phase-rest    { --circuit-border-color: #ef4444; --circuit-glow-color: rgba(239, 68, 68, 0.15); }
body.circuit-border.circuit-phase-longRest { --circuit-border-color: #f59e0b; --circuit-glow-color: rgba(245, 158, 11, 0.12); }

.circuit-settings {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-bottom: 14px;
  padding: 10px 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.circuit-setting {
  text-align: center;
}

.circuit-setting label {
  display: block;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 4px;
}

.circuit-setting input {
  width: 100%;
  text-align: center;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 22px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 6px 2px;
  -moz-appearance: textfield;
}

.circuit-setting input::-webkit-inner-spin-button,
.circuit-setting input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.circuit-round {
  text-align: center;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin-bottom: 10px;
}

.circuit-panel .exercise-list {
  margin-bottom: 0;
}

.circuit-panel .exercise-row {
  grid-template-columns: 1fr;
  cursor: default;
  padding: 12px 14px;
  transition: opacity 0.2s, background 0.2s;
}

.circuit-panel .exercise-row .ex-name::before {
  width: 8px;
  height: 8px;
  border: none;
  background: var(--border);
  border-radius: 50%;
}

.circuit-panel .exercise-row.circuit-current {
  background: rgba(34, 197, 94, 0.12);
}

.circuit-panel .exercise-row.circuit-current .ex-name::before {
  background: #22c55e;
}

.circuit-panel .exercise-row.circuit-current .ex-name {
  color: var(--text);
  font-weight: 700;
}

.circuit-panel .exercise-row.circuit-done {
  opacity: 0.35;
}

.circuit-panel .exercise-row.circuit-done .ex-name {
  text-decoration: line-through;
}

.circuit-timer {
  text-align: center;
  padding: 24px 0 8px;
}

.circuit-timer-time {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 80px;
  letter-spacing: 2px;
  line-height: 1;
  color: var(--text);
  transition: color 0.3s;
}

.circuit-timer-phase {
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--muted);
  margin-top: 4px;
}

.circuit-controls {
  display: flex;
  gap: 10px;
  padding: 14px 0;
}

.circuit-btn {
  flex: 1;
  border: none;
  border-radius: 12px;
  padding: 16px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 24px;
  letter-spacing: 2px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.15s;
}

.circuit-btn:active { opacity: 0.7; }

.circuit-btn-start {
  background: var(--accent);
  color: #fff;
}

.circuit-btn-reset {
  flex: 0 0 auto;
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--muted);
  padding: 16px 20px;
}