/* ==========================================================================
   Anonimizador Local de Documentos PDF
   Tokens de Diseño y Accesibilidad Estricta (WCAG AAA - Contraste >= 7:1)
   Cero dependencias externas / 100% Offline
   ========================================================================== */

:root {
  /* Paleta Base de Alto Contraste (Cumple ratio >= 7:1 sobre blanco) */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-secondary: #f1f5f9;
  
  --text-main: #090d16;        /* Contraste 18.2:1 (AAA) */
  --text-muted: #27303f;       /* Contraste 10.5:1 (AAA) */
  --text-inverse: #ffffff;
  
  --border-strong: #475569;    /* Contraste 7.0:1 (AAA) */
  --border-light: #64748b;
  
  /* Colores de Acción e Indicadores */
  --brand-blue: #093c88;       /* Contraste 10.6:1 sobre blanco */
  --brand-blue-hover: #06285c;
  --brand-green: #0a5223;      /* Contraste 8.4:1 sobre blanco */
  --brand-green-bg: #e6f5ea;
  --brand-red: #8f0e0e;        /* Contraste 10.2:1 sobre blanco */
  --brand-red-bg: #faeaea;
  --brand-amber: #78350f;      /* Contraste 8.1:1 sobre blanco */
  --brand-amber-bg: #fef3c7;
  
  --focus-outline: #9c004c;    /* Contraste 8.5:1 sobre blanco */

  /* Categorías Badges (Fondo accesible con texto de alto contraste) */
  --badge-person-bg: #e0e7ff;
  --badge-person-fg: #1e1b4b;  /* 14.8:1 */
  --badge-id-bg: #fef3c7;
  --badge-id-fg: #451a03;      /* 14.2:1 */
  --badge-clin-bg: #fee2e2;
  --badge-clin-fg: #7f1d1d;    /* 10.9:1 */
  --badge-addr-bg: #dcfce7;
  --badge-addr-fg: #14532d;    /* 10.4:1 */
  --badge-cont-bg: #f3e8ff;
  --badge-cont-fg: #4c1d95;    /* 11.8:1 */
  --badge-manu-bg: #e2e8f0;
  --badge-manu-fg: #0f172a;    /* 15.6:1 */

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.15);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #090d16;
    --bg-card: #131b2e;
    --bg-secondary: #1a253d;
    
    --text-main: #f8fafc;      /* Contraste 17.5:1 */
    --text-muted: #cbd5e1;     /* Contraste 11.2:1 */
    --text-inverse: #090d16;
    
    --border-strong: #94a3b8;  /* Contraste 7.1:1 */
    --border-light: #64748b;
    
    --brand-blue: #70aaff;     /* Contraste 8.6:1 sobre fondo oscuro */
    --brand-blue-hover: #99c2ff;
    --brand-green: #4ade80;
    --brand-green-bg: #062b11;
    --brand-red: #fca5a5;
    --brand-red-bg: #3b0909;
    --brand-amber: #fcd34d;
    --brand-amber-bg: #3b2204;
    
    --focus-outline: #ff70b0;

    --badge-person-bg: #1e293b;
    --badge-person-fg: #e2e8f0;
    --badge-id-bg: #3b2204;
    --badge-id-fg: #fef08a;
    --badge-clin-bg: #3f1212;
    --badge-clin-fg: #fecaca;
    --badge-addr-bg: #0c2b18;
    --badge-addr-fg: #bbf7d0;
    --badge-cont-bg: #2e1065;
    --badge-cont-fg: #e9d5ff;
    --badge-manu-bg: #1e293b;
    --badge-manu-fg: #f1f5f9;
  }
}

/* Reset y Base */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem; /* 17px */
  line-height: 1.6;
  background-color: var(--bg-page);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

/* Enfoque accesible universal */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid var(--focus-outline) !important;
  outline-offset: 3px !important;
}

/* Contenedor principal */
.app-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem 1rem;
}

/* Banner de Privacidad Estricta */
.privacy-banner {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background-color: var(--brand-green-bg);
  border: 2px solid var(--brand-green);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  margin-bottom: 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--brand-green);
}

.privacy-banner svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

/* Encabezado */
header {
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2.15rem;
  line-height: 1.2;
  margin: 0 0 0.5rem 0;
  color: var(--text-main);
  font-weight: 800;
}

header p {
  margin: 0;
  font-size: 1.15rem;
  color: var(--text-muted);
}

/* Tarjetas y Secciones */
.card {
  background: var(--bg-card);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.card h2 {
  font-size: 1.4rem;
  margin: 0 0 1rem 0;
  color: var(--text-main);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Zona de Carga (Drag & Drop) */
.dropzone {
  border: 3px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 2.75rem 1.5rem;
  text-align: center;
  background-color: var(--bg-secondary);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--brand-blue);
  background-color: var(--bg-card);
}

.dropzone-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem auto;
  color: var(--brand-blue);
}

.dropzone p {
  margin: 0.35rem 0;
  font-size: 1.1rem;
}

.dropzone-hint {
  font-size: 0.9rem !important;
  color: var(--text-muted);
}

.file-input-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Botones Accesibles (Mínimo 44px de área táctil) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 46px;
  padding: 0.65rem 1.4rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  transition: background-color 0.12s ease;
}

.btn-primary {
  background-color: var(--brand-blue);
  color: #ffffff;
  border-color: var(--brand-blue);
}

.btn-primary:hover {
  background-color: var(--brand-blue-hover);
  border-color: var(--brand-blue-hover);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background-color: var(--bg-secondary);
}

.btn-danger {
  background-color: var(--brand-red);
  color: #ffffff;
  border-color: var(--brand-red);
}

/* Indicador de Estado y Progreso */
.status-box {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-top: 1rem;
  font-weight: 600;
  border: 2px solid var(--border-strong);
}

.status-box.active {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-box.loading {
  background-color: var(--bg-secondary);
  color: var(--text-main);
}

.status-box.error {
  background-color: var(--brand-red-bg);
  border-color: var(--brand-red);
  color: var(--brand-red);
}

.spinner {
  width: 22px;
  height: 22px;
  border: 3px solid var(--border-strong);
  border-top-color: var(--brand-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Barra de Herramientas de Revisión */
.review-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding: 1rem;
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-md);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1 1 260px;
}

.search-box input, .filter-select select, .manual-input {
  min-height: 44px;
  padding: 0.5rem 0.85rem;
  font-size: 1rem;
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-sm);
  width: 100%;
}

.selection-summary {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Tabla de Coincidencias */
.table-wrapper {
  overflow-x: auto;
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  background: var(--bg-card);
}

th {
  background-color: var(--bg-secondary);
  color: var(--text-main);
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  border-bottom: 2px solid var(--border-strong);
  white-space: nowrap;
}

td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-strong);
  vertical-align: middle;
}

tr:hover td {
  background-color: var(--bg-secondary);
}

/* Checkboxes Accesibles */
.custom-checkbox {
  width: 22px;
  height: 22px;
  cursor: pointer;
  accent-color: var(--brand-blue);
}

/* Badges de Categoría */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid currentColor;
}

.badge-PERSON { background-color: var(--badge-person-bg); color: var(--badge-person-fg); }
.badge-ID { background-color: var(--badge-id-bg); color: var(--badge-id-fg); }
.badge-CLINICAL { background-color: var(--badge-clin-bg); color: var(--badge-clin-fg); }
.badge-ADDRESS { background-color: var(--badge-addr-bg); color: var(--badge-addr-fg); }
.badge-CONTACT { background-color: var(--badge-cont-bg); color: var(--badge-cont-fg); }
.badge-MANUAL { background-color: var(--badge-manu-bg); color: var(--badge-manu-fg); }

/* Añadir término manual */
.manual-term-section {
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.75rem;
}

.manual-term-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
}

.manual-form-group {
  flex: 1 1 200px;
}

.manual-form-group label {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

/* Barra de Acción Final */
.action-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 2px solid var(--border-strong);
}

/* Pantalla de Éxito y Descarga */
.success-banner {
  background-color: var(--brand-green-bg);
  border: 2px solid var(--brand-green);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.success-banner h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.35rem;
  color: var(--brand-green);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}

.stat-item {
  background-color: var(--bg-card);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--brand-blue);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 0.25rem;
}

/* Ocultar elementos */
[hidden] {
  display: none !important;
}

/* Utilidad para lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Modal Accesible de Selección de Subparte */
.accessible-modal {
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background-color: var(--bg-card);
  color: var(--text-main);
  max-width: 640px;
  width: 92%;
  padding: 0;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
  position: fixed;
  inset: 0;
  margin: auto;
  z-index: 9999;
}

.accessible-modal::backdrop {
  background-color: rgba(9, 13, 22, 0.75);
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.5rem;
  border-bottom: 2px solid var(--border-strong);
  background-color: var(--bg-secondary);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
  padding: 1.15rem 1.5rem;
  border-top: 2px solid var(--border-strong);
  background-color: var(--bg-secondary);
}

.btn-icon {
  background: transparent;
  border: 2px solid transparent;
  color: var(--text-main);
  font-size: 1.25rem;
  font-weight: 800;
  cursor: pointer;
  border-radius: var(--radius-sm);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background-color: var(--bg-secondary);
  border-color: var(--border-strong);
}

.phrase-selection-box {
  padding: 0.9rem 1.1rem;
  background-color: var(--bg-secondary);
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--text-main);
  user-select: text;
  cursor: text;
  word-break: break-word;
}

.phrase-selection-box::selection,
.phrase-selection-box *::selection {
  background-color: var(--brand-blue);
  color: #ffffff;
}

.modal-feedback-box {
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
}

.modal-feedback-box.success {
  background-color: var(--brand-green-bg);
  border: 1px solid var(--brand-green);
  color: var(--brand-green);
}

.modal-feedback-box.info {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  color: var(--text-main);
}

/* Botón para ajustar subfrase en tabla */
.btn-subterm {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-strong);
  background-color: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.12s ease;
  white-space: nowrap;
}

.btn-subterm:hover {
  background-color: var(--brand-blue);
  color: #ffffff;
  border-color: var(--brand-blue);
}

/* Popover flotante al seleccionar texto en tabla */
.selection-popover {
  position: absolute;
  z-index: 10000;
  transform: translateY(-100%);
  margin-top: -6px;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.25));
}

.btn-popover {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 700;
  background-color: var(--brand-blue);
  color: #ffffff;
  border: 2px solid #ffffff;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.btn-popover:hover {
  background-color: var(--brand-blue-hover);
}

/* ==========================================================================
   Fase 3: Barra de Estado del Motor de Ejecución y Agente Local Zero-Knowledge
   ========================================================================== */

.engine-status-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
  padding: 0.85rem 1.15rem;
  background-color: var(--bg-card);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.engine-status-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.engine-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.95rem;
  font-weight: 700;
  transition: all 0.2s ease;
}

.engine-badge[data-state="active"] {
  background-color: var(--brand-green-bg);
  color: var(--brand-green);
  border: 2px solid var(--brand-green);
}

.engine-badge[data-state="unlicensed"] {
  background-color: var(--brand-amber-bg);
  color: var(--brand-amber);
  border: 2px solid var(--brand-amber);
}

.engine-badge[data-state="missing"] {
  background-color: var(--brand-red-bg);
  color: var(--brand-red);
  border: 2px solid var(--brand-red);
}

.engine-badge[data-state="checking"] {
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  border: 2px solid var(--border-light);
}

.engine-details {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.engine-status-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.88rem;
}

/* Banner de Agente no detectado */
.agent-missing-banner {
  margin: 1rem 0;
  padding: 1.1rem 1.25rem;
  background-color: var(--brand-amber-bg);
  color: var(--text-main);
  border: 2px solid var(--brand-amber);
  border-radius: var(--radius-md);
}

.banner-content {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.banner-icon {
  font-size: 1.8rem;
  line-height: 1;
}

.agent-cmd-list {
  margin: 0.5rem 0;
  padding-left: 1.25rem;
}

.agent-cmd-list li {
  margin-bottom: 0.3rem;
}

.agent-cmd-list code {
  background-color: var(--bg-card);
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-weight: 700;
}