/* 
 * NARIMATO - Universal Button Design System
 * 
 * FUNCTIONAL: Provides consistent button styling across all components
 * STRATEGIC: Creates unified user experience with curved, spacious button design
 * 
 * Based on the beautiful swipe buttons design: curved background + airy spacing
 */

/* Base Button Style - Universal Design */
.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: 500;
  font-family: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  min-width: 120px;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Color Variants */

/* Primary - Like/Success Actions */
.btn-primary {
  background: #28a745;
  color: white;
}

/* Success - Explicit green variant (alias to primary) */
.btn-success {
  background: #28a745;
  color: white;
}

.btn-success:hover {
  background: #218838;
}

.btn-primary:hover {
  background: #218838;
}

/* Secondary - Dislike/Danger Actions */
.btn-secondary {
  background: #dc3545;
  color: white;
}

.btn-secondary:hover {
  background: #c82333;
}

/* Info - Neutral/Information Actions */
.btn-info {
  background: #0070f3;
  color: white;
}

.btn-info:hover {
  background: #0056b3;
}

/* Warning - Warning/Caution Actions */
.btn-warning {
  background: #ffc107;
  color: black;
}

.btn-warning:hover {
  background: #e0a800;
}

/* Muted - Cancel/Secondary Actions */
.btn-muted {
  background: #6c757d;
  color: white;
}

.btn-muted:hover {
  background: #5a6268;
}

/* Light - Background Actions */
.btn-light {
  background: #f8f9fa;
  color: #495057;
  border: 1px solid #dee2e6;
}

.btn-light:hover {
  background: #e2e6ea;
}

/* Dark - High Contrast Actions */
.btn-dark {
  background: #343a40;
  color: white;
}

.btn-dark:hover {
  background: #23272b;
}

/* Size Variants */

/* Small Buttons - For compact interfaces */
.btn-sm {
  padding: 0.5rem 1.5rem;
  font-size: 0.875rem;
  min-width: 80px;
}

/* Large Buttons - For prominent actions */
.btn-lg {
  padding: 1.25rem 2.5rem;
  font-size: 1.375rem;
  min-width: 160px;
}

/* Extra Large - For hero actions */
.btn-xl {
  padding: 1.5rem 3rem;
  font-size: 1.5rem;
  min-width: 200px;
}

/* Special Variants */

/* Icon Only - For icon buttons */
.btn-icon {
  padding: 1rem;
  min-width: auto;
  width: 56px;
  height: 56px;
  border-radius: 50%;
}

.btn-icon.btn-sm {
  width: 40px;
  height: 40px;
  padding: 0.5rem;
}

.btn-icon.btn-lg {
  width: 72px;
  height: 72px;
  padding: 1.25rem;
}

/* Block - Full width buttons */
.btn-block {
  width: 100%;
  display: flex;
}

/* Outline variants */
.btn-outline {
  background: transparent;
  border: 2px solid currentColor;
  box-shadow: none;
}

.btn-outline:hover {
  background: currentColor;
  color: white;
}

.btn-outline.btn-primary {
  color: #28a745;
  border-color: #28a745;
}

.btn-outline.btn-secondary {
  color: #dc3545;
  border-color: #dc3545;
}

.btn-outline.btn-info {
  color: #0070f3;
  border-color: #0070f3;
}

.btn-outline.btn-warning {
  color: #ffc107;
  border-color: #ffc107;
}

.btn-outline.btn-warning:hover {
  color: #000;
}

.btn-outline.btn-muted {
  color: #6c757d;
  border-color: #6c757d;
}

/* Group buttons */
.btn-group {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-group-tight {
  gap: 0.5rem;
}

.btn-group-loose {
  gap: 2rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    min-width: 100px;
  }
  
  .btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    min-width: 60px;
  }
  
  .btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    min-width: 120px;
  }
  
  .btn-xl {
    padding: 1.125rem 2.25rem;
    font-size: 1.25rem;
    min-width: 150px;
  }
}

/* Loading state */
.btn-loading {
  position: relative;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}