/* Área de Clientes Tecnac — mismos design tokens que el Selector (selector/src/styles/tokens.css) */
.tecnac-ac {
  --tk-color-primary: #0a4d8c;
  --tk-color-primary-hover: #0c5ca6;
  --tk-color-text: #1c2733;
  --tk-color-text-muted: #5a6b7b;
  --tk-color-border: #d8e0e8;
  --tk-color-danger: #b3261e;
  --tk-color-danger-bg: #fdeceb;
  --tk-color-chip-bg: #e8f0f8;
  --tk-radius: 10px;
  --tk-shadow: 0 1px 3px rgba(16, 33, 51, 0.08), 0 4px 14px rgba(16, 33, 51, 0.06);

  max-width: 560px;
  margin: 0 auto;
  color: var(--tk-color-text);
}

.tecnac-ac__card {
  background: #fff;
  border: 1px solid var(--tk-color-border);
  border-radius: var(--tk-radius);
  box-shadow: var(--tk-shadow);
  padding: 28px 30px 32px;
}

.tecnac-ac__title {
  margin: 0 0 6px;
  font-size: 1.4rem;
}

.tecnac-ac__intro,
.tecnac-ac__meta {
  color: var(--tk-color-text-muted);
  margin: 0 0 18px;
}

.tecnac-ac__form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tecnac-ac__label {
  font-weight: 600;
  font-size: 0.9rem;
}

.tecnac-ac__input {
  padding: 12px 14px;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  border: 1.5px solid var(--tk-color-border);
  border-radius: var(--tk-radius);
  outline: none;
}

.tecnac-ac__input:focus {
  border-color: var(--tk-color-primary);
}

.tecnac-ac__button {
  margin-top: 6px;
  padding: 12px 24px;
  font-weight: 700;
  color: #fff;
  background: var(--tk-color-primary);
  border: none;
  border-radius: var(--tk-radius);
  cursor: pointer;
  transition: background 0.15s;
}

.tecnac-ac__button:hover:not(:disabled) {
  background: var(--tk-color-primary-hover);
}

.tecnac-ac__button:disabled {
  opacity: 0.6;
  cursor: default;
}

.tecnac-ac__error {
  margin: 4px 0 0;
  padding: 10px 12px;
  font-size: 0.9rem;
  color: var(--tk-color-danger);
  background: var(--tk-color-danger-bg);
  border-radius: 8px;
}

.tecnac-ac__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
}

.tecnac-ac__logout {
  color: var(--tk-color-primary);
  font-size: 0.9rem;
  white-space: nowrap;
}

.tecnac-ac__certificates h3 {
  margin: 18px 0 8px;
  font-size: 1.05rem;
}

.tecnac-ac__placeholder {
  background: var(--tk-color-chip-bg);
  border-radius: 8px;
  padding: 14px 16px;
  color: var(--tk-color-text-muted);
  font-size: 0.92rem;
}

/* ---- Listado de certificados ---- */
.tecnac-ac__certs-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.tecnac-ac__search-input {
  padding: 9px 12px;
  min-width: 240px;
  font: inherit;
  border: 1.5px solid var(--tk-color-border);
  border-radius: var(--tk-radius);
  outline: none;
}
.tecnac-ac__search-input:focus {
  border-color: var(--tk-color-primary);
}
.tecnac-ac__certs-count {
  font-size: 0.82rem;
  color: var(--tk-color-text-muted);
  margin: 4px 0 10px;
}
.tecnac-ac__certs-list {
  max-height: 460px;
  overflow-y: auto;
}
.tecnac-ac__certs-loading,
.tecnac-ac__certs-empty {
  color: var(--tk-color-text-muted);
  font-size: 0.92rem;
  padding: 12px 0;
}
.tecnac-ac__certs-ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.tecnac-ac__cert {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--tk-color-border);
}
.tecnac-ac__cert-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}
.tecnac-ac__cert-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}
.tecnac-ac__cert-name {
  font-size: 0.9rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tecnac-ac__cert-meta {
  font-size: 0.78rem;
  color: var(--tk-color-text-muted);
}
.tecnac-ac__cert-view {
  flex-shrink: 0;
  padding: 7px 18px;
  font: inherit;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
  background: var(--tk-color-primary);
  border: none;
  border-radius: var(--tk-radius);
  cursor: pointer;
}
.tecnac-ac__cert-view:hover {
  background: var(--tk-color-primary-hover);
}

/* ---- Visor de certificados (ver + imprimir, sin descarga) ---- */
.tecnac-viewer {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(13, 30, 48, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.tecnac-viewer[hidden] { display: none; }
.tecnac-viewer__dialog {
  width: 100%;
  max-width: 960px;
  height: 92vh;
  background: #f2f5f9;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.tecnac-viewer__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--tk-color-primary, #0a4d8c);
  color: #fff;
}
.tecnac-viewer__name {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tecnac-viewer__nav,
.tecnac-viewer__actions {
  display: flex;
  align-items: center;
  gap: 6px;
}
.tecnac-viewer__page {
  font-size: 0.82rem;
  min-width: 60px;
  text-align: center;
}
.tecnac-viewer__btn {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 7px 12px;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}
.tecnac-viewer__btn:hover {
  background: rgba(255, 255, 255, 0.28);
}
.tecnac-viewer__btn--print {
  font-weight: 700;
}
.tecnac-viewer__canvas-wrap {
  flex: 1;
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 16px;
}
.tecnac-viewer__canvas {
  max-width: 100%;
  height: auto;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
  background: #fff;
}
.tecnac-viewer__loading {
  color: var(--tk-color-text-muted);
  margin: auto;
}

/* Área de impresión: oculta en pantalla, visible solo al imprimir */
.tecnac-print-area { display: none; }
@media print {
  body > *:not(.tecnac-print-area) { display: none !important; }
  .tecnac-print-area { display: block !important; }
  .tecnac-print-area canvas {
    display: block;
    width: 100%;
    page-break-after: always;
  }
}

/* =========================================================================
 * Estados de la lista y del visor: carga, vacío, sesión caducada y error.
 * Sustituyen al texto plano gris que no distinguía "no hay nada" de "ha
 * fallado algo" ni ofrecía al usuario ninguna acción.
 * ========================================================================= */

.tecnac-ac__estado-cargando {
  color: var(--tk-color-text-muted);
  font-size: 0.92rem;
  padding: 12px 0;
}

.tecnac-ac__estado {
  padding: 18px 16px;
  border-radius: 10px;
  border: 1px solid var(--tk-color-border);
  text-align: center;
}

.tecnac-ac__estado-titulo {
  margin: 0;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--tk-color-text);
}

.tecnac-ac__estado-detalle {
  margin: 6px 0 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--tk-color-text-muted);
}

/* Sin resultados: informativo, no alarmante. */
.tecnac-ac__estado--vacio {
  background: var(--tk-color-chip-bg);
}

/* Sesión caducada: es una acción pendiente del usuario, no un fallo del sistema. */
.tecnac-ac__estado--sesion {
  background: var(--tk-color-chip-bg);
  border-color: var(--tk-color-primary);
}

/* Fallo real del servicio. */
.tecnac-ac__estado--error {
  background: var(--tk-color-danger-bg);
  border-color: var(--tk-color-danger);
}
.tecnac-ac__estado--error .tecnac-ac__estado-titulo {
  color: var(--tk-color-danger);
}

.tecnac-ac__estado-accion {
  margin-top: 14px;
  padding: 9px 18px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  background: var(--tk-color-primary);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
.tecnac-ac__estado-accion:hover {
  background: var(--tk-color-primary-hover);
}
.tecnac-ac__estado-accion:focus-visible {
  outline: 2px solid var(--tk-color-primary);
  outline-offset: 2px;
}

/* Error dentro del visor: centrado en el hueco del documento. */
.tecnac-viewer-error {
  margin: 32px auto;
  max-width: 420px;
  background: #fff;
}