/* ============================================================
   WORKOUT TIMER — "Obsidian Precision" Design System
   Energetic workout aesthetic with bold accent colors
   Uses CSS variables from styles.css
   ============================================================ */

/* ===== WORKOUT-SPECIFIC VARIABLES ===== */
:root {
  /* Workout accent palette */
  --wk-fire: #ff4757;
  --wk-fire-glow: rgba(255, 71, 87, 0.2);
  --wk-energy: #ff6b2c;
  --wk-energy-glow: rgba(255, 107, 44, 0.2);
  --wk-success: #00d4aa;
  --wk-success-glow: rgba(0, 212, 170, 0.15);
  --wk-rest: #6366f1;
  --wk-rest-glow: rgba(99, 102, 241, 0.2);
  --wk-warning: #f59e0b;
  --wk-info: #5b8def;

  /* Exercise type colors */
  --wk-strength: #ff4757;
  --wk-cardio: #e11d48;
  --wk-flexibility: #a78bfa;
  --wk-balance: #00d4aa;

  /* Set dot states */
  --dot-pending: var(--obsidian-600);
  --dot-active: var(--wk-fire);
  --dot-completed: var(--wk-success);
}

/* ===== MAIN LAYOUT ===== */
.workout-main {
  padding: var(--space-6) 0 var(--space-12);
  min-height: calc(100vh - 200px);
}

.workout-container {
  max-width: var(--container-xl);
  margin: 0 auto;
}

/* ===== SCREEN STRUCTURE ===== */
.workout-screen {
  animation: wk-fadeIn 0.4s var(--ease-out);
}

@keyframes wk-fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.screen-header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.screen-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.screen-subtitle {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin: 0;
}

.category-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

/* ============================================================
   SCREEN 1: PROGRAM SELECTION
   ============================================================ */

.program-categories {
  margin-bottom: var(--space-10);
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
}

/* Program Cards */
.program-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  text-align: left;
  color: var(--text-primary);
  position: relative;
  overflow: hidden;
}

.program-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border-subtle);
  transition: background var(--duration-normal);
}

.program-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), 0 0 20px var(--wk-energy-glow);
}

.program-card:hover::before {
  background: linear-gradient(90deg, var(--accent), var(--wk-fire));
}

.program-card:active {
  transform: translateY(-1px);
}

.program-card-icon {
  font-size: var(--text-4xl);
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
}

.program-card-content {
  flex: 1;
  min-width: 0;
}

.program-card-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.program-card-time {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.program-card-difficulty {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.program-card-arrow {
  font-size: var(--text-xl);
  color: var(--text-muted);
  transition: all var(--duration-fast);
  flex-shrink: 0;
}

.program-card:hover .program-card-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

/* Quick Start Section */
.quick-start-section {
  margin-bottom: var(--space-10);
}

.quick-start-grid {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.quick-btn {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: linear-gradient(135deg, var(--wk-energy) 0%, var(--wk-fire) 100%);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  box-shadow: 0 4px 16px var(--wk-energy-glow);
  min-height: 48px;
}

.quick-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 24px var(--wk-fire-glow);
}

.quick-btn:active {
  transform: translateY(0) scale(0.98);
}

.quick-btn-icon {
  font-size: var(--text-xl);
}

.quick-btn-label {
  font-weight: 700;
}

.quick-btn-time {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  opacity: 0.85;
  letter-spacing: 0.05em;
}

/* Custom Program Section */
.custom-program-section {
  margin-bottom: var(--space-8);
}

.custom-form {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.form-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.form-group input,
.form-group select {
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  transition: border-color var(--duration-fast);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-with-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-unit input {
  flex: 1;
  padding-right: var(--space-10);
}

.input-unit {
  position: absolute;
  right: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  pointer-events: none;
}

.custom-submit-btn {
  width: 100%;
}

/* ============================================================
   SCREEN 2: PROGRAM CONFIGURATION
   ============================================================ */

/* Difficulty Selection */
.difficulty-selection {
  margin-bottom: var(--space-8);
}

.difficulty-grid {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

.difficulty-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-6);
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  min-width: 140px;
  color: var(--text-primary);
}

.difficulty-btn:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.difficulty-btn.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--wk-energy-glow);
}

.difficulty-btn.active .difficulty-desc {
  color: rgba(255, 255, 255, 0.8);
}

.difficulty-icon {
  font-size: var(--text-xl);
}

.difficulty-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
}

.difficulty-desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-align: center;
}

/* Exercise Configuration Items */
.exercises-config {
  margin-bottom: var(--space-6);
}

.exercise-config-item {
  display: grid;
  grid-template-columns: auto 1fr auto auto auto;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  transition: border-color var(--duration-fast);
}

.exercise-config-item:hover {
  border-color: var(--obsidian-500);
}

.exercise-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.exercise-icon {
  font-size: var(--text-xl);
}

.exercise-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
}

.config-input {
  width: 64px;
  text-align: center;
  padding: var(--space-2);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.config-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Configuration Summary */
.config-summary {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-5);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
}

.summary-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.summary-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.summary-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--accent);
}

/* Config Actions */
.config-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  min-height: 56px;
}

/* ============================================================
   SCREEN 3: WORKOUT TIMER MAIN
   ============================================================ */

.timer-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-6);
  align-items: start;
}

.timer-main-area {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* Timer Card */
.timer-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
}

.timer-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--wk-fire), var(--accent), var(--wk-fire));
  background-size: 200% 100%;
  animation: wk-gradient-shift 3s ease infinite;
}

@keyframes wk-gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Exercise Indicator Bar */
.exercise-indicator-bar {
  text-align: center;
  margin-bottom: var(--space-6);
}

.exercise-indicator {
  display: inline-block;
  padding: var(--space-2) var(--space-5);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

/* Timer Display */
.timer-display {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.timer-ring {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--wk-fire), var(--accent));
  padding: 4px;
  box-shadow: 0 0 40px var(--wk-fire-glow), 0 0 80px var(--wk-energy-glow);
  animation: wk-ring-pulse 2s ease-in-out infinite;
}

@keyframes wk-ring-pulse {
  0%, 100% {
    box-shadow: 0 0 40px var(--wk-fire-glow), 0 0 80px var(--wk-energy-glow);
  }
  50% {
    box-shadow: 0 0 50px var(--wk-fire-glow), 0 0 100px var(--wk-energy-glow);
  }
}

.timer-ring-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.timer-time {
  font-family: var(--font-mono);
  font-size: var(--text-5xl);
  font-weight: 700;
  color: var(--timer-color);
  line-height: 1;
  letter-spacing: -0.02em;
  text-shadow: 0 0 20px var(--timer-glow);
}

.timer-status {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

/* Timer Progress Bar */
.timer-progress-container {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.timer-progress-bar {
  flex: 1;
  height: 8px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.timer-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--wk-fire), var(--accent));
  border-radius: var(--radius-full);
  transition: width 0.5s var(--ease-out);
  position: relative;
}

.timer-progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 20px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3));
  border-radius: var(--radius-full);
}

.progress-text {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--accent);
  min-width: 50px;
  text-align: right;
}

/* Set Progress Section */
.set-progress-section {
  margin-bottom: var(--space-6);
}

.set-indicators {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}

.set-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--dot-pending);
  transition: all var(--duration-normal) var(--ease-spring);
  position: relative;
}

.set-dot.active {
  background: var(--dot-active);
  transform: scale(1.4);
  box-shadow: 0 0 12px var(--wk-fire-glow);
}

.set-dot.active::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--wk-fire);
  opacity: 0.5;
  animation: wk-dot-pulse 1.5s ease-in-out infinite;
}

@keyframes wk-dot-pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 0.2; }
}

.set-dot.completed {
  background: var(--dot-completed);
  box-shadow: 0 0 8px var(--wk-success-glow);
}

/* Set Details */
.set-details {
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
}

.set-info-row {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-4);
}

.set-info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.set-info-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
}

.set-info-value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.set-log-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.set-log-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.set-log-input {
  width: 64px;
  text-align: center;
  padding: var(--space-2);
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.set-log-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Timer Controls */
.timer-controls {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.btn-icon-only {
  padding: var(--space-3);
  min-width: 48px;
  min-height: 48px;
  font-size: var(--text-lg);
}

/* Workout-specific button colors */
.btn-warning {
  background: var(--wk-warning);
  color: #fff;
  border: none;
}

.btn-warning:hover {
  background: #d97706;
  color: #fff;
}

.btn-info {
  background: var(--wk-rest);
  color: #fff;
  border: none;
}

.btn-info:hover {
  background: #4f46e5;
  color: #fff;
}

.btn-success {
  background: var(--wk-success);
  color: #fff;
  border: none;
}

.btn-success:hover {
  background: #00b894;
  color: #fff;
}

.btn-small {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  min-height: 36px;
}

.btn-block {
  width: 100%;
}

/* Exercise Tips Card */
.exercise-tips-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.tips-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.tip-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  padding: var(--space-4);
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent);
}

.tip-stats {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.tip-stat {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-muted);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
}

.tip-stat-icon {
  font-size: var(--text-sm);
}

.tip-stat strong {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* ===== Side Panel ===== */
.timer-side-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  position: sticky;
  top: 80px;
}

/* Program Progress Card */
.program-progress-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.side-card-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  text-align: center;
}

/* Exercise List (progress) */
.exercises-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  max-height: 300px;
  overflow-y: auto;
}

/* Custom scrollbar for exercises list */
.exercises-list::-webkit-scrollbar {
  width: 4px;
}

.exercises-list::-webkit-scrollbar-track {
  background: var(--bg-elevated);
  border-radius: 2px;
}

.exercises-list::-webkit-scrollbar-thumb {
  background: var(--obsidian-500);
  border-radius: 2px;
}

.exercise-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--obsidian-600);
  background: var(--bg-elevated);
  transition: all var(--duration-fast);
}

.exercise-item.completed {
  border-left-color: var(--wk-success);
  background: rgba(0, 212, 170, 0.05);
}

.exercise-item.completed .exercise-status-icon {
  color: var(--wk-success);
}

.exercise-item.active {
  border-left-color: var(--wk-fire);
  background: rgba(255, 71, 87, 0.08);
  box-shadow: 0 0 12px rgba(255, 71, 87, 0.1);
}

.exercise-item.active .exercise-name {
  color: var(--wk-fire);
}

.exercise-item.pending {
  border-left-color: var(--obsidian-600);
  opacity: 0.6;
}

.exercise-status-icon {
  font-size: var(--text-base);
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

.exercise-item .exercise-info {
  flex: 1;
  min-width: 0;
}

.exercise-item .exercise-name {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.exercise-details {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Program Time Info */
.program-time-info {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
}

.time-info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.time-info-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.time-info-value {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-primary);
}

.time-info-value.accent {
  color: var(--accent);
}

/* Program Controls Card */
.program-controls-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* Preset Sidebar */
.preset-sidebar {
  margin-top: var(--space-2);
}

/* Ad Space */
.ad-space {
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================
   SCREEN 4: REST SCREEN
   ============================================================ */

.rest-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
}

.rest-overlay {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1a103a 0%, #0d0b24 40%, #1a0a2a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Animated gradient background */
.rest-overlay::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    ellipse at center,
    var(--wk-rest-glow) 0%,
    transparent 50%
  );
  animation: wk-rest-glow 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes wk-rest-glow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(5%, -5%) scale(1.05); }
  66% { transform: translate(-5%, 5%) scale(0.95); }
}

.rest-content {
  text-align: center;
  max-width: 440px;
  padding: var(--space-8);
  position: relative;
  z-index: 1;
}

.rest-header {
  margin-bottom: var(--space-8);
}

.rest-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: #fff;
  margin-bottom: var(--space-2);
}

.rest-subtitle {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

/* Rest Timer Display */
.rest-timer-display {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-8);
}

.rest-ring {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--wk-rest), #818cf8);
  padding: 4px;
  box-shadow: 0 0 60px var(--wk-rest-glow);
  animation: wk-rest-ring 3s ease-in-out infinite;
}

@keyframes wk-rest-ring {
  0%, 100% { box-shadow: 0 0 60px var(--wk-rest-glow); }
  50% { box-shadow: 0 0 80px var(--wk-rest-glow); }
}

.rest-ring-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(13, 11, 36, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.rest-countdown {
  font-family: var(--font-mono);
  font-size: var(--text-5xl);
  font-weight: 700;
  color: #fff;
  line-height: 1;
  text-shadow: 0 0 30px var(--wk-rest-glow);
}

.rest-label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
}

/* Rest Progress Bar */
.rest-progress-container {
  margin-bottom: var(--space-6);
  padding: 0 var(--space-8);
}

.rest-progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.rest-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--wk-rest), #a78bfa);
  border-radius: var(--radius-full);
  transition: width 0.5s var(--ease-out);
}

/* Rest Info */
.rest-next-info {
  margin-bottom: var(--space-8);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.rest-next-info p {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  margin: 0;
  line-height: 1.6;
}

/* Rest Actions */
.rest-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.rest-actions .btn-success {
  background: rgba(0, 212, 170, 0.9);
  min-width: 160px;
}

.rest-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}

.rest-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ============================================================
   SCREEN 5: WORKOUT COMPLETE
   ============================================================ */

#workout-complete {
  padding: var(--space-12) 0;
}

.complete-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.complete-celebration {
  margin-bottom: var(--space-10);
}

.complete-icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
  display: block;
  animation: wk-bounce 1s var(--ease-spring);
}

@keyframes wk-bounce {
  0% { transform: scale(0); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.complete-title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--wk-success);
  margin-bottom: var(--space-3);
  text-shadow: 0 0 40px var(--wk-success-glow);
}

.complete-message {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin: 0;
}

/* Complete Stats */
.complete-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.complete-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-6);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-width: 140px;
  transition: all var(--duration-normal);
}

.complete-stat-item:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.complete-stat-number {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--accent);
}

.complete-stat-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
}

/* Rating Section */
.complete-rating {
  margin-bottom: var(--space-10);
}

.rating-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.rating-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.rating-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  min-width: 90px;
  color: var(--text-primary);
}

.rating-btn:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.rating-btn.selected {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--wk-energy-glow);
  transform: translateY(-3px);
}

.rating-emoji {
  font-size: var(--text-2xl);
}

.rating-text {
  font-size: var(--text-xs);
  font-weight: 600;
  white-space: nowrap;
}

/* Complete Actions */
.complete-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ============================================================
   MODALS
   ============================================================ */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: wk-modal-bg 0.2s ease-out;
}

@keyframes wk-modal-bg {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  max-width: 440px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  animation: wk-modal-in 0.3s var(--ease-spring);
  overflow: hidden;
}

@keyframes wk-modal-in {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--text-2xl);
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-1);
  transition: color var(--duration-fast);
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
}

.modal-body .setting-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.modal-body .setting-group:last-child {
  margin-bottom: 0;
}

.modal-body .setting-group label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.modal-body .setting-group input,
.modal-body .setting-group select {
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.modal-body .setting-group input:focus,
.modal-body .setting-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.setting-row-inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
}

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */

/* Tablet (max 1024px) */
@media (max-width: 1024px) {
  .timer-layout {
    grid-template-columns: 1fr;
  }

  .timer-side-panel {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

  .program-progress-card {
    grid-column: 1 / -1;
  }

  .program-time-info {
    grid-template-columns: repeat(3, 1fr);
  }

  .ad-space {
    grid-column: 1 / -1;
  }

  .preset-sidebar {
    grid-column: 1 / -1;
  }
}

/* Mobile (max 768px) */
@media (max-width: 768px) {
  .workout-main {
    padding: var(--space-4) 0 var(--space-8);
  }

  .screen-title {
    font-size: var(--text-2xl);
  }

  .program-grid {
    grid-template-columns: 1fr;
  }

  .program-card {
    padding: var(--space-4);
  }

  .program-card-icon {
    width: 48px;
    height: 48px;
    font-size: var(--text-3xl);
  }

  .quick-start-grid {
    flex-direction: column;
    align-items: stretch;
  }

  .quick-btn {
    justify-content: center;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  /* Difficulty buttons */
  .difficulty-grid {
    gap: var(--space-2);
  }

  .difficulty-btn {
    min-width: 100px;
    padding: var(--space-3) var(--space-4);
  }

  .difficulty-label {
    font-size: var(--text-sm);
  }

  /* Exercise config */
  .exercise-config-item {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    text-align: center;
  }

  .config-summary {
    flex-direction: column;
    gap: var(--space-4);
  }

  .config-actions {
    flex-direction: column;
    align-items: stretch;
  }

  /* Timer display */
  .timer-ring {
    width: 200px;
    height: 200px;
  }

  .timer-time {
    font-size: var(--text-4xl);
  }

  .timer-controls {
    gap: var(--space-2);
  }

  .timer-controls .btn {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    min-height: 44px;
  }

  /* Set details */
  .set-info-row {
    gap: var(--space-4);
  }

  .set-log-row {
    flex-wrap: wrap;
  }

  /* Tips */
  .tip-stats {
    flex-direction: column;
  }

  /* Side panel */
  .timer-side-panel {
    grid-template-columns: 1fr;
  }

  /* Rest screen */
  .rest-ring {
    width: 180px;
    height: 180px;
  }

  .rest-countdown {
    font-size: var(--text-4xl);
  }

  .rest-actions {
    flex-direction: column;
    align-items: center;
  }

  .rest-actions .btn {
    width: 100%;
    max-width: 240px;
  }

  /* Complete screen */
  .complete-stats {
    flex-direction: column;
    align-items: center;
  }

  .complete-stat-item {
    width: 100%;
    max-width: 280px;
  }

  .rating-buttons {
    flex-direction: column;
    align-items: center;
  }

  .rating-btn {
    width: 100%;
    max-width: 200px;
    flex-direction: row;
    justify-content: center;
    gap: var(--space-3);
  }

  .complete-actions {
    flex-direction: column;
    align-items: stretch;
  }

  /* Modal */
  .modal-content {
    margin: var(--space-4);
  }

  .setting-row-inline {
    grid-template-columns: 1fr;
  }
}

/* Small Mobile (max 480px) */
@media (max-width: 480px) {
  .timer-ring {
    width: 170px;
    height: 170px;
  }

  .timer-time {
    font-size: var(--text-3xl);
  }

  .rest-ring {
    width: 160px;
    height: 160px;
  }

  .rest-countdown {
    font-size: var(--text-3xl);
  }

  .complete-title {
    font-size: var(--text-3xl);
  }

  .complete-stat-number {
    font-size: var(--text-2xl);
  }

  .set-indicators {
    gap: var(--space-2);
  }

  .set-dot {
    width: 12px;
    height: 12px;
  }
}

/* ============================================================
   ANIMATIONS
   ============================================================ */

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-15px); }
  60% { transform: translateY(-7px); }
}

@keyframes fall {
  from {
    transform: translateY(-100vh) rotate(0deg);
    opacity: 1;
  }
  to {
    transform: translateY(100vh) rotate(360deg);
    opacity: 0;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  .timer-ring,
  .rest-ring,
  .timer-card::before {
    animation: none;
  }

  .set-dot.active::after {
    animation: none;
  }

  .rest-overlay::before {
    animation: none;
  }

  .workout-screen {
    animation: none;
  }

  .complete-icon {
    animation: none;
  }

  .timer-progress-fill,
  .rest-progress-fill {
    transition: none;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .workout-main {
    padding: 1rem 0;
  }

  .timer-controls,
  .rest-actions,
  .complete-actions,
  .config-actions,
  .preset-sidebar,
  .ad-space,
  .modal,
  .rest-screen {
    display: none !important;
  }

  .timer-ring,
  .rest-ring {
    box-shadow: none;
    animation: none;
    border: 2px solid var(--wk-fire);
  }

  .program-card,
  .complete-stat-item {
    break-inside: avoid;
  }
}