/* components.css - Nút bấm, Thẻ, Badge, Modal, Toast */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-200);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.88rem;
  transition: all 0.18s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn svg {
  width: 17px;
  height: 17px;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.28);
}
.btn-primary:hover {
  filter: brightness(1.07);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.38);
}
.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--primary-500);
  color: var(--primary-600);
  background: var(--primary-50);
}
.btn-success {
  background: var(--success-600);
  color: #fff;
}
.btn-danger {
  background: var(--danger-50);
  color: var(--danger-600);
  border-color: var(--danger-100);
}
.btn-danger:hover {
  background: var(--danger-500);
  color: #fff;
}
.btn-sm {
  padding: 0.38rem 0.75rem;
  font-size: 0.8rem;
}
.btn-lg {
  padding: 0.78rem 1.5rem;
  font-size: 0.96rem;
  border-radius: var(--radius-md);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-primary { background: var(--primary-50); color: var(--primary-600); }
.badge-success { background: var(--success-50); color: var(--success-600); }
.badge-warning { background: var(--warning-50); color: var(--warning-600); }
.badge-danger  { background: var(--danger-50); color: var(--danger-600); }
.badge-neutral { background: var(--bg-elevated); color: var(--text-secondary); }

.progress-bar-track {
  width: 100%;
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--gradient-brand);
  border-radius: 999px;
  transition: width 0.35s ease;
}

/* Modal & Toast */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
}
.modal-overlay.hidden {
  display: none;
}
.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-color);
}
.toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 120;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-width: 360px;
}
.toast {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-left: 4px solid var(--primary-500);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.86rem;
  font-weight: 500;
}
.toast-success { border-left-color: var(--success-500); }
.toast-warning { border-left-color: var(--warning-500); }
.toast-error { border-left-color: var(--danger-500); }

.empty-state {
  text-align: center;
  padding: 2.5rem 1.25rem;
  color: var(--text-muted);
}
.empty-state h3 {
  color: var(--text-primary);
  margin: 0.6rem 0 0.35rem;
  font-size: 1.05rem;
}