/* Tai Chi Week Planner - styles.css */

:root {
  --bg: #f5f0e8;
  --card-bg: #ffffff;
  --primary: #2d5016;
  --primary-light: #4a7c28;
  --accent: #c4a35a;
  --accent-light: #e8d5a0;
  --text: #2c2c2c;
  --text-light: #666;
  --border: #d9d0c0;
  --success: #4caf50;
  --danger: #e74c3c;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: 480px;
  margin: 0 auto;
  padding-bottom: 80px;
}

/* Header */
.app-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  padding: 24px 20px;
  text-align: center;
  border-radius: 0 0 24px 24px;
}

.app-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.subtitle {
  font-size: 0.9rem;
  opacity: 0.85;
  margin-top: 4px;
}

/* Tab navigation */
.tab-nav {
  display: flex;
  background: var(--card-bg);
  margin: 12px 16px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.tab-btn {
  flex: 1;
  padding: 10px 4px;
  border: none;
  background: none;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--primary);
  color: white;
  border-radius: 8px;
  margin: 4px;
}

.tab-content { display: none; padding: 0 16px; }
.tab-content.active { display: block; }

/* Week grid */
.week-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.day-card {
  background: var(--card-bg);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  border: 2px solid transparent;
}

.day-card:active { transform: scale(0.97); }
.day-card.completed { border-color: var(--success); background: #f0faf0; }
.day-card.today { border-color: var(--accent); }

.day-card .day-name {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--primary);
}

.day-card .day-focus {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 2px;
}

.day-card .day-check {
  font-size: 1.4rem;
  margin-top: 6px;
}

.day-card.completed .day-check::after { content: "✅"; }
.day-card:not(.completed) .day-check::after { content: "⬜"; }

/* Exercise selector */
.exercise-selector {
  display: flex;
  overflow-x: auto;
  gap: 8px;
  padding: 4px 0 12px;
  -webkit-overflow-scrolling: touch;
}

.exercise-chip {
  flex-shrink: 0;
  padding: 8px 14px;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  background: var(--card-bg);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.exercise-chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Demo area */
.demo-area {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
  min-height: 320px;
}

.placeholder-text {
  text-align: center;
  color: var(--text-light);
  margin-top: 60px;
  font-size: 0.9rem;
}

.demo-exercise-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.demo-exercise-benefit {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-bottom: 16px;
}

/* Animated step display */
.step-display {
  text-align: center;
  padding: 20px 0;
}

.step-animation {
  font-size: 3rem;
  margin-bottom: 12px;
  animation: breathe 3s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
}

.step-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  min-height: 48px;
  line-height: 1.5;
}

.step-counter {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 8px;
}

/* Progress bar */
.progress-bar-wrap {
  background: var(--border);
  border-radius: 6px;
  height: 6px;
  margin: 16px 0;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 6px;
  transition: width 0.4s ease;
}

/* Demo controls */
.demo-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
}

.demo-btn {
  padding: 10px 20px;
  border: none;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.demo-btn.primary {
  background: var(--primary);
  color: white;
}

.demo-btn.secondary {
  background: var(--accent-light);
  color: var(--text);
}

.demo-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Step list (all steps view) */
.step-list {
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.step-list-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid #f0f0f0;
}

.step-list-item:last-child { border-bottom: none; }

.step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.step-list-text {
  font-size: 0.82rem;
  line-height: 1.4;
}

/* Progress tab */
.progress-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 14px 8px;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-label {
  font-size: 0.65rem;
  color: var(--text-light);
  margin-top: 2px;
}

.progress-calendar {
  background: var(--card-bg);
  border-radius: 14px;
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.calendar-title {
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: var(--primary);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.cal-day {
  text-align: center;
  font-size: 0.65rem;
  color: var(--text-light);
  font-weight: 600;
}

.cal-cell {
  aspect-ratio: 1;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 600;
  background: #f5f5f5;
}

.cal-cell.done {
  background: var(--success);
  color: white;
}

.cal-cell.today {
  border: 2px solid var(--accent);
}

.btn-danger {
  display: block;
  width: 100%;
  padding: 12px;
  border: 1.5px solid var(--danger);
  background: none;
  color: var(--danger);
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

/* Settings */
.settings-group {
  background: var(--card-bg);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}

.settings-group h3 {
  font-size: 0.95rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.85rem;
  gap: 10px;
}

.setting-row input[type="time"] {
  padding: 6px 10px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
}

.setting-row input[type="range"] {
  flex: 1;
  max-width: 120px;
}

.btn-primary {
  display: block;
  width: 100%;
  padding: 12px;
  border: none;
  background: var(--primary);
  color: white;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
}

.status-text {
  font-size: 0.75rem;
  color: var(--success);
  margin-top: 8px;
  text-align: center;
}

.hint {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

/* Responsive */
@media (min-width: 481px) {
  #app { padding-top: 20px; }
}