/* ==========================================================================
   Planyo Booking Widget - CSS Styles
   Modern, responsive design for desktop and mobile
   ========================================================================== */

/* CSS Custom Properties (Variables) - Easily customizable */
:root {
  /* Colors */
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --success-light: #d1fae5;
  --error-color: #ef4444;
  --error-light: #fee2e2;
  --warning-color: #f59e0b;
  
  /* Neutrals */
  --bg-color: #ffffff;
  --bg-secondary: #f8fafc;
  --border-color: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Widget Container */
.planyo-widget {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--bg-color);
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  line-height: 1.5;
}

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

.progress-bar::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--border-color);
  z-index: 0;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
  flex: 1;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--bg-color);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.step-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
  text-align: center;
}

.progress-step.active .step-number {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.progress-step.active .step-label {
  color: var(--primary-color);
  font-weight: 500;
}

.progress-step.completed .step-number {
  background: var(--success-color);
  border-color: var(--success-color);
  color: white;
}

/* ==========================================================================
   Booking Steps
   ========================================================================== */
.booking-step {
  animation: fadeIn var(--transition-normal);
}

.booking-step.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.step-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  padding: var(--spacing-sm) 0;
  margin-bottom: var(--spacing-md);
  transition: color var(--transition-fast);
}

.back-button:hover {
  color: var(--primary-color);
}

/* ==========================================================================
   Step 1: Resources Grid
   ========================================================================== */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.resource-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.resource-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.resource-card.selected {
  border-color: var(--primary-color);
  border-width: 2px;
  box-shadow: 0 0 0 3px var(--primary-light);
}

.resource-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--bg-secondary);
}

.resource-image-placeholder {
  width: 100%;
  height: 160px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--border-color) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.resource-content {
  padding: var(--spacing-md);
}

.resource-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.resource-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.resource-price {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--primary-color);
}

/* ==========================================================================
   Step 2: Calendar
   ========================================================================== */
.selected-resource-summary,
.selected-date-summary {
  background: var(--bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.calendar-container {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

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

.calendar-month {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.calendar-nav {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.calendar-nav:hover {
  background: var(--bg-secondary);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.calendar-nav:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.calendar-weekdays span {
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-muted);
  padding: var(--spacing-sm);
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--spacing-xs);
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.calendar-day:hover:not(.disabled):not(.empty) {
  background: var(--primary-light);
  border-color: var(--primary-color);
}

.calendar-day.empty {
  cursor: default;
}

.calendar-day.today {
  font-weight: 600;
  border-color: var(--primary-color);
}

.calendar-day.available {
  background: var(--success-light);
  color: var(--success-color);
}

.calendar-day.disabled {
  color: var(--text-muted);
  background: var(--bg-secondary);
  cursor: not-allowed;
}

.calendar-day.selected {
  background: var(--primary-color);
  color: white;
  font-weight: 600;
}

.calendar-legend {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.legend-item .dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-sm);
}

.legend-item .dot.available {
  background: var(--success-light);
  border: 1px solid var(--success-color);
}

.legend-item .dot.unavailable {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

/* ==========================================================================
   Step 3: Time Slots
   ========================================================================== */
.time-slots-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.time-slot {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.time-slot:hover:not(.disabled) {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.time-slot.selected {
  border-color: var(--primary-color);
  border-width: 2px;
  background: var(--primary-light);
}

.time-slot.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--bg-secondary);
}

.time-slot-time {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.time-slot-info {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.time-slot-available {
  color: var(--success-color);
}

.time-slot-available.low {
  color: var(--warning-color);
}

.no-slots-message {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--text-secondary);
}

/* ==========================================================================
   Step 4: Booking Form
   ========================================================================== */
.booking-summary {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

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

.summary-row.total {
  padding-top: var(--spacing-md);
  margin-top: var(--spacing-sm);
  border-top: 2px solid var(--border-color);
  border-bottom: none;
}

.summary-label {
  color: var(--text-secondary);
}

.summary-value {
  font-weight: 500;
}

.summary-row.total .summary-value {
  font-size: var(--font-size-xl);
  color: var(--primary-color);
  font-weight: 600;
}

.booking-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background: var(--bg-color);
}

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

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--error-color);
}

.error-message {
  font-size: var(--font-size-sm);
  color: var(--error-color);
  margin-top: var(--spacing-xs);
  min-height: 1.25rem;
}

/* Phone Input */
.phone-input {
  display: flex;
  gap: var(--spacing-sm);
}

.phone-input select {
  width: 100px;
  flex-shrink: 0;
}

.phone-input input {
  flex: 1;
}

/* Quantity Selector */
.quantity-selector {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  max-width: 150px;
}

.qty-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  cursor: pointer;
  font-size: var(--font-size-xl);
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.qty-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.quantity-selector input {
  width: 60px;
  text-align: center;
  font-weight: 600;
  -moz-appearance: textfield;
}

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

/* Checkbox */
.checkbox-group {
  flex-direction: row;
  align-items: flex-start;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  margin-top: 3px;
}

.checkbox-label a {
  color: var(--primary-color);
  text-decoration: none;
}

.checkbox-label a:hover {
  text-decoration: underline;
}

/* Submit Button */
.submit-button {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-lg);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.submit-button:hover:not(:disabled) {
  background: var(--primary-hover);
}

.submit-button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.button-loading {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* ==========================================================================
   Step 5: Confirmation
   ========================================================================== */
.confirmation-container {
  text-align: center;
  padding: var(--spacing-xl);
}

.confirmation-icon {
  color: var(--success-color);
  margin-bottom: var(--spacing-lg);
}

.confirmation-icon svg {
  animation: checkmark 0.5s ease-out forwards;
}

@keyframes checkmark {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

.confirmation-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.confirmation-message {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.confirmation-details {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  text-align: left;
}

.confirmation-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

.modify-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--primary-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modify-link:hover {
  background: var(--primary-light);
}

.new-booking-button {
  padding: var(--spacing-md) var(--spacing-lg);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: var(--font-size-base);
  transition: color var(--transition-fast);
}

.new-booking-button:hover {
  color: var(--primary-color);
}

/* ==========================================================================
   Loading & Modal
   ========================================================================== */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  color: var(--text-secondary);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: var(--spacing-md);
}

.spinner-small {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.modal-content {
  position: relative;
  background: var(--bg-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  max-width: 400px;
  width: 90%;
  text-align: center;
  animation: modalIn var(--transition-normal);
}

@keyframes modalIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-icon {
  margin-bottom: var(--spacing-lg);
}

.modal-icon.error {
  color: var(--error-color);
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.modal-message {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.modal-button {
  padding: var(--spacing-sm) var(--spacing-xl);
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-base);
  transition: background var(--transition-fast);
}

.modal-button:hover {
  background: var(--primary-hover);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.hidden {
  display: none !important;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Tablet */
@media (max-width: 768px) {
  .planyo-widget {
    padding: var(--spacing-md);
  }
  
  .progress-bar {
    margin-bottom: var(--spacing-lg);
  }
  
  .step-label {
    display: none;
  }
  
  .step-number {
    width: 28px;
    height: 28px;
    font-size: 0.75rem;
  }
  
  .step-title {
    font-size: var(--font-size-xl);
  }
  
  .resources-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .time-slots-container {
    grid-template-columns: 1fr 1fr;
  }
  
  .calendar-legend {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .booking-summary {
    padding: var(--spacing-md);
  }
  
  .confirmation-actions {
    width: 100%;
  }
  
  .modify-link {
    width: 100%;
    justify-content: center;
  }
}

/* Mobile */
@media (max-width: 480px) {
  :root {
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
  }
  
  .planyo-widget {
    padding: var(--spacing-sm);
  }
  
  .calendar-container {
    padding: var(--spacing-md);
  }
  
  .calendar-weekdays span {
    font-size: 0.7rem;
    padding: var(--spacing-xs);
  }
  
  .calendar-day {
    font-size: 0.75rem;
  }
  
  .time-slots-container {
    grid-template-columns: 1fr;
  }
  
  .phone-input {
    flex-direction: column;
  }
  
  .phone-input select {
    width: 100%;
  }
  
  .submit-button {
    font-size: var(--font-size-base);
    padding: var(--spacing-md);
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000;
    --text-secondary: #333;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}