/* ============================================================
   Modal (section 16)
   ============================================================ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: backdrop-in 180ms ease-out;
}

.modal-backdrop.closing {
  animation: backdrop-out 150ms ease-in forwards;
}

@keyframes backdrop-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes backdrop-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

.modal {
  position: relative;
  width: 90%;
  max-width: 480px;
  max-height: 85vh;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modal-in 240ms ease-out;
}

.modal-backdrop.closing .modal {
  animation: modal-out 150ms ease-in forwards;
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes modal-out {
  from {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
  to {
    opacity: 0;
    transform: scale(0.95) translateY(8px);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: 600;
}

.modal-close {
  color: var(--text-tertiary);
  transition: color 120ms;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-4);
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--border-subtle);
}