/**
 * FITNESSPLAT AI Workout Builder - Premium Design
 * Inspired by Apple, Whoop, Strong App, ChatGPT
 */

/* ============================================
   DURATION SLIDER STYLES (Sound Bar Style)
   ============================================ */
.workout-duration-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: linear-gradient(
    to right,
    var(--workout-primary) 0%,
    var(--workout-primary) 33%,
    rgba(16, 185, 129, 0.3) 33%,
    rgba(16, 185, 129, 0.3) 100%
  );
  outline: none;
  cursor: pointer;
  transition: all 0.3s ease;
  margin: 12px 0; /* Add vertical margin to accommodate thumb */
}

.workout-duration-slider:hover {
  height: 10px;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

/* Webkit (Chrome, Safari, Edge) */
.workout-duration-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--workout-primary);
  cursor: pointer;
  margin-top: -8px; /* Center the thumb on the 8px track */
  box-shadow: 
    0 0 0 4px rgba(16, 185, 129, 0.2),
    0 0 10px rgba(16, 185, 129, 0.5),
    0 0 20px rgba(16, 185, 129, 0.3);
  transition: all 0.3s ease;
}

.workout-duration-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 
    0 0 0 6px rgba(16, 185, 129, 0.3),
    0 0 15px rgba(16, 185, 129, 0.7),
    0 0 30px rgba(16, 185, 129, 0.5);
}

/* Firefox */
.workout-duration-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--workout-primary);
  cursor: pointer;
  border: none;
  box-shadow: 
    0 0 0 4px rgba(16, 185, 129, 0.2),
    0 0 10px rgba(16, 185, 129, 0.5),
    0 0 20px rgba(16, 185, 129, 0.3);
  transition: all 0.3s ease;
}

.workout-duration-slider::-moz-range-thumb:hover {
  transform: scale(1.2);
  box-shadow: 
    0 0 0 6px rgba(16, 185, 129, 0.3),
    0 0 15px rgba(16, 185, 129, 0.7),
    0 0 30px rgba(16, 185, 129, 0.5);
}

/* Track styling for Firefox */
.workout-duration-slider::-moz-range-track {
  height: 8px;
  border-radius: 5px;
  background: linear-gradient(
    to right,
    var(--workout-primary) 0%,
    var(--workout-primary) 33%,
    rgba(16, 185, 129, 0.3) 33%,
    rgba(16, 185, 129, 0.3) 100%
  );
}

/* ============================================
   CSS VARIABLES & THEME
   ============================================ */
:root {
  --workout-primary: #10B981;
  --workout-primary-light: #34D399;
  --workout-primary-dark: #059669;
  --workout-blue: #4079FF;
  --workout-purple: #8B5CF6;
  --workout-gold: #FFD700;
  
  --workout-bg: #0A0E1A;
  --workout-bg-secondary: #141B2D;
  --workout-bg-card: rgba(26, 35, 50, 0.6);
  --workout-bg-glass: rgba(26, 35, 50, 0.8);
  
  --workout-text-primary: #FFFFFF;
  --workout-text-secondary: #B0B8C4;
  --workout-text-tertiary: #6B7280;
  
  --workout-gradient-primary: linear-gradient(135deg, #10B981 0%, #34D399 100%);
  --workout-gradient-blue: linear-gradient(135deg, #4079FF 0%, #6B9AFF 100%);
  --workout-gradient-purple: linear-gradient(135deg, #8B5CF6 0%, #A78BFA 100%);
  
  --workout-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --workout-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --workout-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --workout-shadow-glow: 0 0 40px rgba(16, 185, 129, 0.3);
  
  --workout-radius-sm: 8px;
  --workout-radius-md: 12px;
  --workout-radius-lg: 20px;
  --workout-radius-xl: 32px;
  
  --workout-spacing-xs: 0.5rem;
  --workout-spacing-sm: 1rem;
  --workout-spacing-md: 2rem;
  --workout-spacing-lg: 3rem;
  --workout-spacing-xl: 4rem;
}



/* ============================================
   RESET & BASE
   ============================================ */
.workout-builder-wrapper {
  min-height: 100vh;
  background: var(--workout-bg);
  padding-bottom: 100px; /* Space for sticky CTA */
}

/* ============================================
   HEADER
   ============================================ */
.workout-header {
  
  text-align: center;
  padding: var(--workout-spacing-xl) var(--workout-spacing-md) var(--workout-spacing-lg);
  background: linear-gradient(135deg, var(--workout-bg) 0%, var(--workout-bg-secondary) 100%);
}

.workout-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--workout-spacing-sm);
  background: var(--workout-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  
}

.workout-header p {
  font-size: 1rem;
  color: var(--workout-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ============================================
   WIZARD CONTAINER
   ============================================ */
.workout-wizard {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--workout-spacing-md);
}

/* Progress Bar */
.workout-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--workout-spacing-xl);
  position: relative;
}

.workout-progress::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  z-index: 0;
}

.workout-progress-step {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--workout-spacing-xs);
  flex: 1;
}

.workout-progress-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--workout-bg-card);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--workout-text-secondary);
  transition: all 0.3s ease;
  position: relative;
}

.workout-progress-step.active .workout-progress-circle {
  background: var(--workout-gradient-primary);
  border-color: var(--workout-primary);
  color: var(--workout-text-primary);
  box-shadow: var(--workout-shadow-glow);
  transform: scale(1.1);
}

.workout-progress-step.completed .workout-progress-circle {
  background: var(--workout-gradient-primary);
  border-color: var(--workout-primary);
  color: var(--workout-text-primary);
}

.workout-progress-step.completed .workout-progress-circle::after {
  content: '✓';
  position: absolute;
  font-size: 1.5rem;
}

.workout-progress-label {
  font-size: 0.875rem;
  color: var(--workout-text-secondary);
  text-align: center;
  font-weight: 600;
}

.workout-progress-step.active .workout-progress-label {
  color: var(--workout-primary-light);
}

/* Wizard Steps */
.workout-step {
  display: none;
  animation: fadeInUp 0.5s ease-out;
}

.workout-step.active {
  display: block;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.workout-step-header {
  text-align: center;
  margin-bottom: var(--workout-spacing-lg);
}

.workout-step-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  
  color: var(--workout-text-primary);
}

.workout-step-subtitle {
  font-size: 1.125rem;
  color: var(--workout-text-secondary);
  line-height: 1.6;
}

/* Option Cards */
.workout-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--workout-spacing-md);
  margin-bottom: var(--workout-spacing-lg);
}

.workout-option-card {
  background: var(--workout-bg-glass);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--workout-radius-md);
  padding: var(--workout-spacing-lg);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.workout-option-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--workout-gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.workout-option-card:hover {
  transform: translateY(-4px);
  border-color: var(--workout-primary);
  box-shadow: var(--workout-shadow-glow);
}

.workout-option-card:hover::before {
  opacity: 0.1;
}

.workout-option-card.selected {
  border-color: var(--workout-primary);
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(52, 211, 153, 0.2));
  box-shadow: var(--workout-shadow-glow);
  transform: translateY(-4px);
}

.workout-option-card.selected::before {
  opacity: 0.15;
}

.workout-option-icon {
  font-size: 3rem;
  margin-bottom: var(--workout-spacing-sm);
  position: relative;
  z-index: 1;
  color: var(--workout-text-primary);
  display: block;
}

.workout-option-card.selected .workout-option-icon {
  color: var(--workout-primary-light);
}

.workout-option-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--workout-spacing-xs);
  color: var(--workout-text-primary);
  position: relative;
  z-index: 1;
}



/* Days slider group (Step 2) */
.workout-days-slider-group {
  max-width: 480px;
  margin: 0 auto var(--workout-spacing-lg);
}

/* Input Fields */
.workout-input-group {
  margin-bottom: var(--workout-spacing-md);
}

.workout-input-label {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--workout-text-primary);
  margin-bottom: var(--workout-spacing-xs);
}

.workout-input {
  width: 100%;
  padding: 1rem;
  background: var(--workout-bg-glass);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--workout-radius-md);
  color: var(--workout-text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.workout-input:focus {
  outline: none;
  border-color: var(--workout-primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Date input specific styling */
.workout-input[type="date"] {
  cursor: pointer;
  min-height: 48px;
}

.workout-input[type="date"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 1;
  filter: invert(1);
  width: 20px;
  height: 20px;
}

.workout-input[type="date"]::-webkit-inner-spin-button,
.workout-input[type="date"]::-webkit-clear-button {
  display: block;
  opacity: 1;
}

.workout-input[type="textarea"],
.workout-input textarea {
  min-height: 100px;
  resize: vertical;
  font-family: inherit;
}

.workout-input-group p {
  margin-top: 0.5rem;
  color: var(--workout-text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* Exercise Preview Cards */
.workout-exercise-preview {
  background: var(--workout-bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--workout-radius-md);
  padding: var(--workout-spacing-md);
  margin-bottom: var(--workout-spacing-sm);
  transition: all 0.3s ease;
}

.workout-exercise-preview:hover {
  transform: translateX(4px);
  border-color: var(--workout-primary);
}

.workout-exercise-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--workout-spacing-sm);
}

.workout-exercise-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--workout-text-primary);
}

.workout-exercise-type {
  font-size: 0.875rem;
  padding: 0.25rem 0.75rem;
  background: rgba(16, 185, 129, 0.2);
  color: var(--workout-primary-light);
  border-radius: 20px;
  font-weight: 600;
}

.workout-exercise-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--workout-spacing-sm);
  margin-top: var(--workout-spacing-sm);
}

.workout-exercise-detail {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.workout-exercise-detail-label {
  font-size: 0.75rem;
  color: var(--workout-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.workout-exercise-detail-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--workout-text-primary);
}

/* Alternatives */
.workout-alternatives {
  margin-top: var(--workout-spacing-sm);
  padding-top: var(--workout-spacing-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.workout-alternatives-label {
  font-size: 0.875rem;
  color: var(--workout-text-secondary);
  margin-bottom: var(--workout-spacing-xs);
  font-weight: 600;
}

.workout-alternatives-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--workout-spacing-xs);
}

.workout-alternative-tag {
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  font-size: 0.875rem;
  color: var(--workout-text-secondary);
  transition: all 0.2s ease;
}

.workout-alternative-tag:hover {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--workout-primary);
  color: var(--workout-primary-light);
}

/* Weekly Plan Preview */
.workout-plan-preview {
  background: var(--workout-bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--workout-radius-lg);
  padding: var(--workout-spacing-lg);
  margin-bottom: var(--workout-spacing-lg);
}

.workout-plan-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--workout-spacing-md);
}

.workout-plan-preview-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--workout-text-primary);
}

.workout-plan-days {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--workout-spacing-sm);
}

.workout-plan-day {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--workout-radius-md);
  padding: var(--workout-spacing-sm);
}

.workout-plan-day-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--workout-primary-light);
  margin-bottom: var(--workout-spacing-xs);
}

.workout-plan-day-exercises {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.workout-plan-day-exercise {
  font-size: 0.875rem;
  color: var(--workout-text-secondary);
  padding-left: var(--workout-spacing-xs);
  border-left: 2px solid rgba(16, 185, 129, 0.3);
}

/* Navigation Buttons */
.workout-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--workout-spacing-xl);
  gap: var(--workout-spacing-md);
}

.workout-btn {
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--workout-radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: var(--workout-spacing-xs);
  text-decoration: none;
}

.workout-btn-primary {
  background: var(--workout-gradient-primary);
  color: var(--workout-text-primary);
  box-shadow: var(--workout-shadow-glow);
}

.workout-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(16, 185, 129, 0.5);
}

.workout-btn-secondary {
  background: var(--workout-bg-glass);
  backdrop-filter: blur(20px);
  color: var(--workout-text-primary);
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.workout-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.workout-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Sticky CTA */
.workout-sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--workout-bg-glass);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--workout-spacing-md);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.workout-sticky-cta.show {
  display: flex;
}

.workout-sticky-cta-content {
  flex: 1;
}

.workout-sticky-cta-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--workout-text-primary);
  margin-bottom: 0.25rem;
}

.workout-sticky-cta-subtitle {
  font-size: 0.875rem;
  color: var(--workout-text-secondary);
}

.workout-sticky-cta-btn {
  padding: 1rem 2rem;
  background: var(--workout-gradient-primary);
  color: var(--workout-text-primary);
  border: none;
  border-radius: var(--workout-radius-md);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--workout-spacing-xs);
  transition: all 0.3s ease;
  box-shadow: var(--workout-shadow-glow);
}

.workout-sticky-cta-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 60px rgba(16, 185, 129, 0.5);
}

/* Summary Step */
.workout-summary {
  background: var(--workout-bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--workout-radius-lg);
  padding: var(--workout-spacing-lg);
  margin-bottom: var(--workout-spacing-lg);
}

.workout-summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--workout-spacing-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.workout-summary-item:last-child {
  border-bottom: none;
}

.workout-summary-label {
  font-size: 1rem;
  color: var(--workout-text-secondary);
  font-weight: 600;
}

.workout-summary-value {
  font-size: 1rem;
  color: var(--workout-text-primary);
  font-weight: 700;
}

/* Loading State */
.workout-loading {
  display: none;
  text-align: center;
  padding: var(--workout-spacing-xl);
}

.workout-loading.active {
  display: block;
}

.workout-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(16, 185, 129, 0.2);
  border-top-color: var(--workout-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--workout-spacing-md);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.workout-loading-text {
  font-size: 1.125rem;
  color: var(--workout-text-secondary);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
  .workout-options {
    grid-template-columns: 1fr;
  }
  
  .workout-progress {
    flex-wrap: wrap;
    gap: var(--workout-spacing-sm);
  }
  
  .workout-progress-step {
    flex: 0 0 auto;
  }
  
  .workout-navigation {
    flex-direction: column;
  }
  
  .workout-btn {
    width: 100%;
    justify-content: center;
  }
  
  .workout-sticky-cta {
    flex-direction: column;
    gap: var(--workout-spacing-sm);
    text-align: center;
  }
  
  .workout-sticky-cta-btn {
    width: 100%;
    justify-content: center;
  }
}