:root {
  /* Variables de Tema (Modo Claro por defecto) */
  --modal-bg: #ffffff;
  --modal-text: #1e293b;
  --modal-text-secondary: #64748b;
  --modal-border: #e2e8f0;
  --modal-primary: #2563eb;
  --modal-primary-hover: #1d4ed8;
  --modal-primary-text: #ffffff;
  --modal-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --modal-overlay: rgba(15, 23, 42, 0.6);
  --modal-radius: 12px;
  --modal-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modo Oscuro (se activa con clase .dark-mode en body o preferencia de sistema) */
@media (prefers-color-scheme: dark) {
  :root {
    --modal-bg: #1e293b;
    --modal-text: #f8fafc;
    --modal-text-secondary: #cbd5e1;
    --modal-border: #334155;
    --modal-overlay: rgba(0, 0, 0, 0.75);
  }
}

body.dark-mode {
    --modal-bg: #1e293b;
    --modal-text: #f8fafc;
    --modal-text-secondary: #cbd5e1;
    --modal-border: #334155;
    --modal-overlay: rgba(0, 0, 0, 0.75);
}

/* Overlay (Fondo) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--modal-overlay);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 1rem;
}

.modal-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Contenedor del Modal */
.modal-container {
  background-color: var(--modal-bg);
  border-radius: var(--modal-radius);
  box-shadow: var(--modal-shadow);
  width: 100%;
  max-width: 480px;
  transform: scale(0.95) translateY(10px);
  opacity: 0;
  transition: var(--modal-transition);
  overflow: hidden;
  border: 1px solid var(--modal-border);
  display: flex;
  flex-direction: column;
}

.modal-overlay.is-visible .modal-container {
  transform: scale(1) translateY(0);
  opacity: 1;
}

/* Cabecera */
.modal-header {
  padding: 1.5rem 1.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--modal-text);
  margin: 0;
  line-height: 1.2;
}

/* Cuerpo */
.modal-body {
  padding: 0 1.5rem 1.5rem;
  color: var(--modal-text-secondary);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

/* Pie */
.modal-footer {
  padding: 1rem 1.5rem;
  background-color: rgba(0, 0, 0, 0.02);
  border-top: 1px solid var(--modal-border);
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

/* Botón */
.modal-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  outline: none;
}

.modal-btn-primary {
  background-color: var(--modal-primary);
  color: var(--modal-primary-text);
  box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.modal-btn-primary:hover,
.modal-btn-primary:focus {
  background-color: var(--modal-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 8px -1px rgba(37, 99, 235, 0.3);
}

.modal-btn-primary:active {
  transform: translateY(0);
}

/* Accesibilidad y Foco */
.modal-btn:focus-visible {
  ring: 2px solid var(--modal-primary);
  ring-offset: 2px;
}

/* Iconos de Estado (Opcional) */
.modal-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  margin-left: 1.5rem;
  margin-top: 1.5rem;
}

.modal-icon.success {
  background-color: #dcfce7;
  color: #166534;
}

.modal-icon.error {
  background-color: #fee2e2;
  color: #991b1b;
}

.modal-content-wrapper {
    display: flex;
    flex-direction: column;
}