/**
 * Button Component Styles
 * Boutique Suzosky - Luxury E-commerce
 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: var(--border-width-2) solid transparent;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.3);
}

/* Button Variants */

/* Primary - Gold */
.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-black);
  border-color: var(--color-gold);
}

.btn-primary:hover {
  background-color: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary - Black */
.btn-secondary {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.btn-secondary:hover {
  background-color: var(--color-gray-900);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Outline - Gold */
.btn-outline {
  background-color: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn-outline:hover {
  background-color: var(--color-gold);
  color: var(--color-black);
  box-shadow: var(--shadow-gold);
}

/* Outline - Black */
.btn-outline-black {
  background-color: transparent;
  color: var(--color-black);
  border-color: var(--color-black);
}

.btn-outline-black:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

/* Outline - White */
.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-black);
}

/* Ghost */
.btn-ghost {
  background-color: transparent;
  color: var(--color-black);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gold);
}

/* Link */
.btn-link {
  background-color: transparent;
  color: var(--color-gold);
  border-color: transparent;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.btn-link:hover {
  color: var(--color-gold-dark);
  text-decoration: none;
}

/* Button Sizes */

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn-xl {
  padding: var(--spacing-xl) var(--spacing-3xl);
  font-size: var(--font-size-xl);
}

/* Button Shapes */

.btn-pill {
  border-radius: var(--border-radius-full);
}

.btn-square {
  padding: var(--spacing-md);
  width: 48px;
  height: 48px;
}

.btn-square.btn-sm {
  padding: var(--spacing-sm);
  width: 36px;
  height: 36px;
}

.btn-square.btn-lg {
  padding: var(--spacing-lg);
  width: 64px;
  height: 64px;
}

/* Button States */

.btn-loading {
  pointer-events: none;
  position: relative;
  color: transparent !important;
}

.btn-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-top-color: transparent;
  animation: btn-spin 0.6s linear infinite;
}

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

/* Button Group */

.btn-group {
  display: inline-flex;
  align-items: center;
  gap: 0;
}

.btn-group .btn {
  border-radius: 0;
  margin-left: -1px;
}

.btn-group .btn:first-child {
  border-top-left-radius: var(--border-radius-sm);
  border-bottom-left-radius: var(--border-radius-sm);
  margin-left: 0;
}

.btn-group .btn:last-child {
  border-top-right-radius: var(--border-radius-sm);
  border-bottom-right-radius: var(--border-radius-sm);
}

.btn-group .btn:hover,
.btn-group .btn:focus,
.btn-group .btn.active {
  z-index: 1;
}

/* Floating Action Button */

.btn-fab {
  position: fixed;
  bottom: var(--spacing-2xl);
  right: var(--spacing-2xl);
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-full);
  box-shadow: var(--shadow-2xl);
  z-index: var(--z-fixed);
}

.btn-fab:hover {
  box-shadow: var(--shadow-gold-lg);
  transform: scale(1.1);
}

/* Luxury Shine Effect */

.btn-shine {
  position: relative;
  overflow: hidden;
}

.btn-shine::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transition: left var(--transition-slow);
}

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

/* Icon in button */

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-icon svg,
.btn-icon i {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-icon.btn-sm svg,
.btn-icon.btn-sm i {
  width: 16px;
  height: 16px;
}

.btn-icon.btn-lg svg,
.btn-icon.btn-lg i {
  width: 24px;
  height: 24px;
}

/* Full width button */

.btn-block {
  display: flex;
  width: 100%;
}

/* Responsive */

@media (max-width: 768px) {
  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
  }
  
  .btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
  }
  
  .btn-fab {
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
  }
}