/* Primary Button */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  font-family: 'Inter', system-ui, sans-serif;
  white-space: nowrap;
}

.button:disabled {
  cursor: not-allowed;
}

/* Primary Variant */
.button--primary {
  background: var(--color-primary-accent);
  color: #0f172a;
  box-shadow: 0 10px 30px -12px rgba(14, 165, 233, 0.9);
}

.button--primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px -15px rgba(14, 165, 233, 0.95);
}

.button--primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 8px 20px -12px rgba(14, 165, 233, 0.9);
}

.button--primary:disabled {
  background: rgba(71, 85, 105, 0.4);
  color: rgba(226, 232, 240, 0.65);
  box-shadow: none;
}

/* Secondary Variant */
.button--secondary {
  background: transparent;
  border: 1px solid var(--color-primary-accent);
  color: var(--color-primary-accent);
}

.button--secondary:hover:not(:disabled) {
  background: rgba(56, 189, 248, 0.1);
}

.button--secondary:active:not(:disabled) {
  background: rgba(56, 189, 248, 0.2);
}

.button--secondary:disabled {
  border-color: rgba(148, 163, 184, 0.4);
  color: rgba(226, 232, 240, 0.65);
}

/* Danger Variant */
.button--danger {
  background: var(--color-error);
  color: #ffffff;
  box-shadow: 0 10px 30px -12px rgba(248, 113, 113, 0.6);
}

.button--danger:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px -15px rgba(248, 113, 113, 0.7);
}

.button--danger:active:not(:disabled) {
  transform: translateY(0);
}

.button--danger:disabled {
  background: rgba(71, 85, 105, 0.4);
  color: rgba(226, 232, 240, 0.65);
  box-shadow: none;
}

/* Icon Button */
.button--icon {
  padding: 8px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  color: var(--color-primary-accent);
  border-radius: var(--radius-sm);
}

.button--icon:hover:not(:disabled) {
  background: rgba(148, 163, 184, 0.15);
}

.button--icon:active:not(:disabled) {
  background: rgba(148, 163, 184, 0.25);
}

.button--icon:disabled {
  color: rgba(148, 163, 184, 0.5);
  cursor: not-allowed;
}

/* Size Variants */
.button--sm {
  padding: 8px 16px;
  font-size: 14px;
}

.button--lg {
  padding: 14px 28px;
  font-size: 18px;
}

/* Loading State */
.button--loading {
  color: transparent;
  pointer-events: none;
  position: relative;
}

.button--loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}