/* Button Styles for Mailgate */

/* Base button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  font-weight: 500;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

/* Button sizes */
.btn-sm {
  padding: 0.25rem 1rem;
  font-size: 0.875rem;
}

.btn-md {
  padding: 0.5rem 1.5rem;
  font-size: 1rem;
}

.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1.125rem;
}

/* Primary gradient button */
.btn-gradient {
  background: var(--gradient-primary);
  color: white;
}

.btn-gradient::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s ease;
}

.btn-gradient:hover::before {
  left: 100%;
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(26, 180, 153, 0.3);
}

/* Glass button */
.btn-glass {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-glass:hover {
  background: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(26, 180, 153, 0.2);
  transform: translateY(-1px);
}

/* Secondary button */
.btn-secondary {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-primary);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

/* Ghost button */
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid transparent;
}

.btn-ghost:hover {
  background: rgba(26, 180, 153, 0.1);
  border-color: var(--primary);
}

/* Danger button */
.btn-danger {
  background: #ef4444;
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* Icon button */
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 12px;
}

.btn-icon.btn-sm {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.btn-icon.btn-lg {
  width: 48px;
  height: 48px;
  border-radius: 14px;
}

/* Icon button glass effect (replaces icon-btn-glass) */
.btn-icon-glass {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: white;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 8px var(--glass-shadow);
}

.btn-icon-glass:hover {
  background: var(--bg-primary);
  border-color: var(--primary);
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(26, 180, 153, 0.2);
}

/* Button states */
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn:disabled:hover {
  transform: none;
  box-shadow: none;
}

/* Button groups */
.btn-group {
  display: inline-flex;
  gap: 0.5rem;
}

.btn-group-vertical {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Loading state */
.btn-loading {
  color: transparent;
}

.btn-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  margin: auto;
  border: 2px solid transparent;
  border-radius: 50%;
  border-top-color: currentColor;
  animation: button-loading-spinner 0.6s linear infinite;
}

@keyframes button-loading-spinner {
  from {
    transform: rotate(0turn);
  }
  to {
    transform: rotate(1turn);
  }
}

/* Utility classes for button content */
.btn-icon-left {
  margin-right: 0.5rem;
}

.btn-icon-right {
  margin-left: 0.5rem;
}

/* Mobile touch-friendly adjustments */
@media (max-width: 640px) {
  .btn {
    min-height: 44px; /* iOS recommended touch target */
    touch-action: manipulation; /* Prevent double-tap zoom */
  }
  
  .btn-sm {
    min-height: 36px;
    padding: 0.5rem 1rem;
  }
  
  .btn-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .btn-icon.btn-sm {
    width: 36px;
    height: 36px;
  }
  
  .btn-icon-glass {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  /* Ensure SVG icons are visible */
  .btn svg {
    flex-shrink: 0;
    pointer-events: none;
  }
}

/* Landing page button variants */
.btn-outline {
  @apply border-2 border-emerald-600 text-emerald-600 bg-transparent hover:bg-emerald-600 hover:text-white;
}

.btn-outline-light {
  @apply border-2 border-white text-white bg-transparent hover:bg-white hover:text-emerald-600;
}

/* Combined usage examples:
   - Small gradient button: class="btn btn-gradient btn-sm"
   - Large glass button: class="btn btn-glass btn-lg"
   - Icon only button: class="btn btn-icon btn-icon-glass"
   - Danger button with icon: class="btn btn-danger btn-md"
   - Outline button: class="btn btn-outline btn-lg"
   - Light outline: class="btn btn-outline-light btn-lg"
*/