/* === Button Components === */

/* Button Base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: var(--border-width-medium) solid transparent;
  border-radius: var(--border-radius-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--timing-base) var(--ease-out);
  outline: none;
  user-select: none;
  min-width: 120px;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

/* Button Variants */
.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  border-color: transparent;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--bg-primary);
  color: var(--color-adobe-red);
  border-color: var(--color-adobe-red);
}

.btn-secondary:hover {
  background: var(--color-adobe-red);
  color: var(--text-inverse);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--color-gray-300);
}

.btn-outline:hover {
  background: var(--bg-secondary);
  border-color: var(--color-gray-400);
}

.btn-ghost {
  background: transparent;
  color: var(--color-adobe-red);
  border-color: transparent;
}

.btn-ghost:hover {
  background: rgba(225, 37, 27, 0.1);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  min-width: 80px;
}

.btn-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--font-size-lg);
  min-width: 160px;
}

/* Button States */
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn.loading {
  color: transparent;
  position: relative;
}

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

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

/* Responsive Button Styles */
@media (max-width: 768px) {
  .btn {
    width: 100%;
    max-width: 300px;
  }
}