/* ============================================================
   CER — Panel de administración (tema oscuro cobalto)
   ============================================================ */

:root {
  --ap:   #4b4bff;   /* accent (cobalto CER) */
  --apd:  #2f2fe6;   /* accent hover */
  --ok:   #10b981;
  --warn: #f59e0b;
  --err:  #ef4444;

  --bg:   #05051a;   /* fondo */
  --bg-2: #08082a;
  --card: #0c0c33;   /* superficie */
  --card-2:#101041;
  --bdr:  rgba(255,255,255,.10);
  --txt:  #edeefc;
  --muted:#9a9ac6;

  /* Alias usados por estilos inline del panel */
  --admin-bg-card: var(--card);
  --admin-border: var(--bdr);
  --admin-text-muted: var(--muted);

  --radius: .75rem;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--txt);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

/* ---------- Login ---------- */
.login-container {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  overflow: hidden;
  background:
    radial-gradient(60% 60% at 15% 0%, rgba(75,75,255,.5), transparent 60%),
    radial-gradient(50% 50% at 100% 100%, rgba(34,211,238,.28), transparent 60%),
    var(--bg);
}
.login-card {
  position: relative;
  z-index: 1;
  background: var(--card);
  border: 1px solid var(--bdr);
  border-radius: 1rem;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 30px 80px rgba(0,0,0,.55);
}
.login-logo { text-align: center; margin-bottom: 1.5rem; }
.login-logo img { height: 42px; width: auto; margin: 0 auto; border-radius: 6px; }
.login-title { font-size: 1.5rem; font-weight: 800; text-align: center; margin-bottom: .25rem; letter-spacing: -.01em; }
.login-subtitle { color: var(--muted); text-align: center; margin-bottom: 1.5rem; font-size: .9rem; }

/* ---------- Formularios ---------- */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; font-size: .8rem; font-weight: 600; margin-bottom: .4rem; color: var(--txt); }
.form-label .req { color: var(--ap); margin-left: .15rem; }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: .7rem .9rem;
  border: 1.5px solid var(--bdr);
  border-radius: .5rem;
  color: var(--txt);
  background: rgba(255,255,255,.04);
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--muted); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--ap);
  background: rgba(255,255,255,.06);
  box-shadow: 0 0 0 3px rgba(75,75,255,.2);
}
.form-select { cursor: pointer; }
/* Opciones legibles en navegadores que respetan color del <option> */
.form-select option { background: var(--card); color: var(--txt); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-input:disabled, .form-select:disabled { opacity: .55; cursor: not-allowed; }
.form-hint { font-size: .78rem; color: var(--muted); margin-top: .35rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* Bloque de sección dentro de un formulario largo */
.form-section {
  border: 1px solid var(--bdr);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  background: rgba(255,255,255,.02);
}
.form-section > legend,
.form-section-title {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.form-section-title i { color: var(--ap); }

/* ---------- Botones ---------- */
.btn-admin {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .7rem 1.2rem;
  border-radius: .5rem;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .15s, border-color .15s;
  border: 1px solid transparent;
  line-height: 1;
}
.btn-admin:disabled { opacity: .55; cursor: not-allowed; transform: none !important; }
.btn-admin-primary { background: linear-gradient(135deg, var(--ap), var(--apd)); color: #fff; box-shadow: 0 8px 24px -10px rgba(75,75,255,.8); }
.btn-admin-primary:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 12px 30px -8px rgba(75,75,255,.9); }
.btn-admin-secondary { background: rgba(255,255,255,.06); color: var(--txt); border-color: var(--bdr); }
.btn-admin-secondary:hover:not(:disabled) { background: rgba(255,255,255,.12); }
.btn-admin-success { background: var(--ok); color: #fff; }
.btn-admin-success:hover:not(:disabled) { background: #059669; }
.btn-admin-danger { background: var(--err); color: #fff; }
.btn-admin-danger:hover:not(:disabled) { background: #dc2626; }
.btn-admin-block { width: 100%; }
.btn-admin-sm { padding: .42rem .8rem; font-size: .8rem; }

/* ---------- Layout ---------- */
.admin-page { min-height: 100vh; background: var(--bg); }
.admin-page main { padding-top: 70px; }

.admin-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .8rem 1.5rem;
  background: rgba(6,6,24,.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bdr);
}
.admin-header-left { display: flex; align-items: center; gap: 1.5rem; }
.admin-header-logo { display: flex; align-items: center; gap: .55rem; }
.admin-header-logo img { height: 26px; width: auto; border-radius: 6px; }
.admin-header-logo::after { content: "· Admin"; font-weight: 800; letter-spacing: .08em; font-size: .8rem; color: rgba(255,255,255,.72); }

.admin-nav { display: flex; gap: .25rem; flex-wrap: wrap; }
.admin-nav-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .42rem .85rem;
  border-radius: .5rem;
  color: var(--muted);
  font-weight: 500;
  font-size: .875rem;
  cursor: pointer;
  border: none;
  background: none;
  transition: background .15s, color .15s;
}
.admin-nav-link:hover { background: rgba(255,255,255,.06); color: var(--txt); }
.admin-nav-link.active { background: linear-gradient(135deg, var(--ap), var(--apd)); color: #fff; }

.admin-header-right { display: flex; align-items: center; gap: 1rem; }
.admin-user-info { display: flex; align-items: center; gap: .6rem; }
.admin-user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--ap), var(--apd));
  color: #fff; font-weight: 700; font-size: .85rem;
}
.admin-user-name { font-weight: 600; font-size: .875rem; }
.admin-user-role { font-size: .75rem; color: var(--muted); }

.admin-container { max-width: 1200px; margin: 0 auto; padding: 2rem; }

/* ---------- Cabecera de página ---------- */
.page-header { margin-bottom: 1.75rem; }
.page-title { font-size: 1.6rem; font-weight: 800; letter-spacing: -.01em; margin-bottom: .25rem; }
.page-subtitle { color: var(--muted); font-size: .9rem; }

/* ---------- Tarjetas ---------- */
.admin-card {
  background: var(--card);
  border: 1px solid var(--bdr);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
.admin-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.25rem; padding-bottom: 1rem;
  border-bottom: 1px solid var(--bdr);
}
.admin-card-title { font-size: 1rem; font-weight: 700; }

/* ---------- Stats ---------- */
.stats-grid-admin {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.stat-card { background: var(--card); border: 1px solid var(--bdr); border-radius: var(--radius); padding: 1.25rem; }
.stat-card-icon {
  width: 40px; height: 40px; border-radius: .625rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.05rem; margin-bottom: .8rem;
}
.stat-card-icon.primary { background: rgba(75,75,255,.16); color: #b4b4ff; }
.stat-card-icon.success { background: rgba(16,185,129,.16); color: #6ee7b7; }
.stat-card-icon.warning { background: rgba(245,158,11,.16); color: #fcd34d; }
.stat-card-value { font-size: 1.875rem; font-weight: 800; line-height: 1.1; margin-bottom: .2rem; }
.stat-card-label { color: var(--muted); font-size: .8rem; }

/* ---------- Tabla ---------- */
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: .8rem 1rem; text-align: left; border-bottom: 1px solid var(--bdr); }
.admin-table th {
  font-weight: 700; color: var(--muted); font-size: .7rem;
  text-transform: uppercase; letter-spacing: .05em;
  background: rgba(255,255,255,.03);
}
.admin-table tr:hover td { background: rgba(255,255,255,.03); }
.table-actions { display: flex; gap: .35rem; flex-wrap: wrap; }

/* ---------- Badges ---------- */
.badge { display: inline-flex; align-items: center; padding: .18rem .55rem; border-radius: 999px; font-size: .72rem; font-weight: 600; }
.badge-success { background: rgba(16,185,129,.16); color: #6ee7b7; }
.badge-warning { background: rgba(245,158,11,.16); color: #fcd34d; }
.badge-danger  { background: rgba(239,68,68,.16); color: #fca5a5; }
.badge-primary { background: rgba(75,75,255,.16); color: #b4b4ff; }
.badge-centro { display: inline-flex; align-items: center; padding: .18rem .55rem; border-radius: .35rem; font-size: .72rem; font-weight: 700; color: #fff; }
.badge-ceer   { background: #3a3aff; }
.badge-ceeir  { background: #4aa8ec; }
.badge-cedhys { background: #3f74e6; }
.badge-oper   { background: #e0564b; }
.badge-opal   { background: #16b7c2; }
.badge-opsa   { background: #e07a3c; }
.badge-ciren  { background: #14bd92; }
.badge-featured { background: #f59e0b; color: #1a1300; padding: 2px 8px; border-radius: 999px; font-size: .7rem; font-weight: 700; }
.badge-ciclica  { background: #2fb8e6; color: #04121a; padding: 2px 8px; border-radius: 999px; font-size: .7rem; font-weight: 700; }

/* ---------- Zona de carga de archivos ---------- */
.file-upload-zone {
  border: 2px dashed var(--bdr);
  border-radius: var(--radius);
  padding: 2.25rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.file-upload-zone:hover,
.file-upload-zone.dragover { border-color: var(--ap); background: rgba(75,75,255,.08); }
.file-upload-zone:focus-visible { outline: 2px solid var(--ap); outline-offset: 3px; }
.file-upload-icon { font-size: 2.25rem; color: var(--ap); margin-bottom: .6rem; }
.file-upload-text { color: var(--txt); margin-bottom: .2rem; font-size: .9rem; font-weight: 500; }
.file-upload-hint { color: var(--muted); font-size: .8rem; }

.file-upload-preview {
  display: flex; align-items: center; gap: 1rem;
  padding: .85rem;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--bdr);
  border-radius: .5rem;
  margin-top: .75rem;
}
.file-upload-preview-icon { font-size: 1.7rem; color: #fca5a5; }
.file-upload-preview-info { flex: 1; min-width: 0; }
.file-upload-preview-name { font-weight: 600; font-size: .875rem; word-break: break-all; }
.file-upload-preview-size { font-size: .8rem; color: var(--muted); }

/* ---------- Alertas ---------- */
.alert {
  padding: .85rem 1rem;
  border-radius: .5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  font-size: .875rem;
  border: 1px solid transparent;
}
.alert-success { background: rgba(16,185,129,.12); border-color: rgba(16,185,129,.3); color: #6ee7b7; }
.alert-danger  { background: rgba(239,68,68,.12); border-color: rgba(239,68,68,.3); color: #fca5a5; }
.alert-warning { background: rgba(245,158,11,.12); border-color: rgba(245,158,11,.3); color: #fcd34d; }
.alert-info    { background: rgba(75,75,255,.12); border-color: rgba(75,75,255,.3); color: #b4b4ff; }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 2000;
  opacity: 0; visibility: hidden;
  transition: opacity .2s, visibility .2s;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
  background: var(--card);
  border: 1px solid var(--bdr);
  border-radius: .9rem;
  width: 90%; max-width: 480px; max-height: 90vh;
  overflow-y: auto;
  transform: translateY(14px);
  transition: transform .2s;
  box-shadow: 0 30px 80px rgba(0,0,0,.55);
}
.modal-overlay.active .modal { transform: translateY(0); }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--bdr); }
.modal-title { font-size: 1.1rem; font-weight: 700; }
.modal-close { background: none; border: none; font-size: 1.4rem; color: var(--muted); cursor: pointer; line-height: 1; padding: .2rem; }
.modal-close:hover { color: var(--txt); }
.modal-body { padding: 1.25rem 1.5rem; }
.modal-footer { display: flex; gap: .75rem; justify-content: flex-end; padding: 1.25rem 1.5rem; border-top: 1px solid var(--bdr); }

/* ---------- Spinner ---------- */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.spinner-dark { border-color: rgba(255,255,255,.14); border-top-color: var(--ap); }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes slideIn { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: translateX(0); } }

/* ---------- Estado vacío ---------- */
.empty-state { text-align: center; padding: 3rem; color: var(--muted); }
.empty-state-icon { font-size: 3rem; opacity: .35; margin-bottom: .8rem; }
.empty-state-title { font-size: 1.1rem; font-weight: 700; color: var(--txt); margin-bottom: .4rem; }

/* ---------- Tabs ---------- */
.tab-nav { display: flex; border-bottom: 2px solid var(--bdr); margin-bottom: 1.25rem; }
.tab-link {
  flex: 1;
  display: inline-flex; align-items: center; justify-content: center; gap: .35rem;
  padding: .85rem .5rem;
  border: none; background: none;
  color: var(--muted); font-weight: 500; font-size: .875rem;
  cursor: pointer; position: relative;
  transition: color .15s;
}
.tab-link:hover { color: var(--txt); }
.tab-link.active { color: #fff; }
.tab-link.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--ap); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ---------- Misc ---------- */
.link-text { color: #b4b4ff; cursor: pointer; }
.link-text:hover { text-decoration: underline; }
.back-link {
  display: inline-flex; align-items: center; gap: .4rem;
  color: var(--muted); font-size: .875rem; margin-bottom: 1.25rem;
  background: none; border: none; cursor: pointer;
}
.back-link:hover { color: var(--txt); }

.tag-pill {
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--bdr);
  border-radius: 999px;
  padding: .25rem .75rem;
  font-size: .8rem;
}
.tag-pill button { background: none; border: none; cursor: pointer; color: #fca5a5; line-height: 1; font-size: .85rem; padding: 0; }
.tags-container { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: .75rem; min-height: 2rem; }
.config-add-row { display: flex; gap: .5rem; margin-top: .5rem; }
.config-add-row input { flex: 1; }

/* ---------- Notificación flotante ---------- */
.admin-notification { border: 1px solid rgba(255,255,255,.15); }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .admin-header { flex-wrap: wrap; padding: .7rem 1rem; }
  .admin-header-left { flex-direction: column; align-items: flex-start; gap: .5rem; width: 100%; }
  .admin-page main { padding-top: 128px; }
  .admin-container { padding: 1rem; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid-admin { grid-template-columns: 1fr 1fr; }
  .admin-table { display: block; overflow-x: auto; white-space: nowrap; }
  .tab-link { font-size: .8rem; padding: .75rem .25rem; }
}
@media (max-width: 480px) { .stats-grid-admin { grid-template-columns: 1fr; } }