/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  padding: var(--spacing-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal.show {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 100%;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal.show .modal-content {
  transform: scale(1);
}

.modal-header {
  margin-bottom: var(--spacing-lg);
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-text);
}

.modal-body {
  margin-bottom: var(--spacing-lg);
  color: var(--secondary-text);
  line-height: 1.6;
}

.modal-footer {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
}

.modal.success .modal-title {
  color: #28a745;
}

.modal.error .modal-title {
  color: #dc3545;
}

/* Loader / Spinner */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--spacing-md);
  z-index: var(--z-loader);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.loader.show {
  opacity: 1;
  pointer-events: all;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--button-bg);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loader-text {
  color: var(--secondary-text);
  font-size: var(--font-size-lg);
}

/* Toast notifications */
.toast {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 300px;
  z-index: var(--z-modal);
  transform: translateX(400px);
  transition: transform var(--transition-normal);
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-left: 4px solid #28a745;
}

.toast.error {
  border-left: 4px solid #dc3545;
}

.toast.info {
  border-left: 4px solid #17a2b8;
}

.toast-icon {
  font-size: var(--font-size-xl);
}

.toast-message {
  flex: 1;
  color: var(--primary-text);
}

.toast-close {
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  color: var(--secondary-text);
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Card */
.card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

.card-header {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary-text);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  background: rgba(0, 0, 0, 0.02);
}

/* Responsive */
@media (max-width: 768px) {
  .toast {
    right: var(--spacing-sm);
    left: var(--spacing-sm);
    min-width: auto;
  }
}