:root { --tinta: #2B2B2B; --acento: #2E5575; --borde: #d6dbe1; --fondo: #f7f8fa; }
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--ln-font-sans, system-ui, -apple-system, "Segoe UI", sans-serif);
       color: var(--ln-fg, var(--tinta)); background: var(--ln-bg, var(--fondo)); }
.contenedor { max-width: 1200px; margin: 0 auto; }
.pie { padding: 1rem 1.5rem; color: #6b7280; font-size: .85rem; }
.error { color: #b42318; }
.nota { color: var(--ln-fg-muted, #6b7280); font-size: .9rem; }

/* ---- Skip-link + shell (Task 3) ---- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ln-accent, #2E5575); color: var(--ln-accent-fg, #fff);
  padding: .6rem 1rem; border-radius: 0 0 6px 0;
}
.skip-link:focus { left: 0; }
.app-shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  display: flex; flex-direction: column; padding: 3.25rem .75rem 1.25rem; gap: 1.5rem;
  /* Sin sticky, el <aside> estira su altura a la del grid-row (la del
     .app-main mas alto), y el pie de marca queda anclado al FINAL de esa
     altura completa -> hay que bajar mucho para verlo. */
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar-brand {
  display: flex; align-items: center; gap: .65rem;
  padding: 0 .75rem 1rem; margin-bottom: .25rem;
  border-bottom: 1px solid var(--ln-border, var(--borde));
}
.sidebar-brand-icon {
  flex-shrink: 0; width: 30px; height: 30px; border-radius: var(--ln-radius-md, 6px);
  background: var(--ln-accent, var(--acento)); color: var(--ln-accent-fg, #fff);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .95rem;
}
.sidebar-brand-logo { flex-shrink: 0; max-width: 36px; max-height: 36px; object-fit: contain; }
.sidebar-brand-text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.sidebar-brand-title { font-weight: 700; font-size: .92rem; color: var(--ln-fg, var(--tinta)); }
.sidebar-brand-sub {
  font-size: .68rem; font-weight: 500; text-transform: uppercase; letter-spacing: .04em;
  color: var(--ln-fg-subtle, #9ca3af);
}
.sidebar-nav { display: flex; flex-direction: column; gap: .15rem; flex: 1; }
.sidebar-link {
  display: flex; align-items: center; gap: .6rem; padding: .5rem .75rem;
  border-radius: var(--ln-radius-md, 6px);
  border-left: 3px solid transparent; text-decoration: none; font-size: .875rem;
  color: var(--ln-fg-muted, var(--tinta));
}
.sidebar-link-icon { flex-shrink: 0; }
.sidebar-link.active { font-weight: 600; }
.sidebar-footer { border-top: 1px solid var(--ln-border, var(--borde)); padding-top: .75rem; font-size: .8rem; }
.sidebar-user { margin-bottom: .35rem; }
.sidebar-user a { color: var(--ln-fg-muted, #6b7280); }
.sidebar-identidad { color: var(--ln-fg-subtle, #9ca3af); line-height: 1.4; cursor: help; }
.app-main { padding: 1.75rem 2rem; }

/* ---- Colapso de sidebar ---- */
.app-shell { transition: grid-template-columns .18s ease; }
.sidebar { transition: padding .18s ease; }
.sidebar-toggle {
  position: fixed; top: .85rem; left: .85rem; z-index: 60;
  border: 1px solid var(--ln-border, var(--borde)); background: var(--ln-surface, #fff);
  color: var(--ln-fg, var(--tinta)); border-radius: var(--ln-radius-md, 6px);
  width: 1.75rem; height: 1.75rem; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: .9rem; line-height: 1;
}
.app-shell.sidebar-collapsed { grid-template-columns: 44px 1fr; }
.app-shell.sidebar-collapsed .sidebar { padding-left: .5rem; padding-right: .5rem; }
.app-shell.sidebar-collapsed .sidebar-brand,
.app-shell.sidebar-collapsed .sidebar-nav,
.app-shell.sidebar-collapsed .sidebar-footer { display: none; }

@media (max-width: 768px) {
  .app-shell, .app-shell.sidebar-collapsed { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; width: 240px; z-index: 55;
    transform: translateX(-100%); transition: transform .2s ease;
    background: var(--ln-surface, #fff); box-shadow: 2px 0 12px rgba(0,0,0,.15);
  }
  .sidebar.mobile-open { transform: translateX(0); }
  .app-shell.sidebar-collapsed .sidebar-brand,
  .app-shell.sidebar-collapsed .sidebar-nav,
  .app-shell.sidebar-collapsed .sidebar-footer,
  .sidebar.mobile-open .sidebar-brand,
  .sidebar.mobile-open .sidebar-nav,
  .sidebar.mobile-open .sidebar-footer { display: flex; flex-direction: column; }
  .app-shell.sidebar-collapsed .sidebar-nav,
  .sidebar.mobile-open .sidebar-nav { flex: 1; }
  .app-main { padding-top: 3.5rem; }
}

/* ---- Page header (Task 4) ---- */
.page-header { margin-bottom: 1.5rem; }
.page-header-title { margin: 0; font-size: 1.35rem; font-weight: 600; color: var(--ln-fg, var(--tinta)); }
.page-header-sub { margin: .2rem 0 0; font-size: .875rem; color: var(--ln-fg-muted, #6b7280); }

/* ---- Login (auth.ejs) ---- */
.pantalla-auth-main { display: grid; place-items: center; min-height: 100vh; }
.caja-login { width: min(380px, 92vw); }
.caja-login .sub { margin: 0 0 1.5rem; color: var(--ln-fg-muted, #6b7280); font-size: .9rem; }
.login-brand { display: flex; align-items: center; gap: .75rem; margin-bottom: .35rem; }
.login-brand-icon {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: var(--ln-radius-md, 6px);
  background: var(--ln-accent, var(--acento)); color: var(--ln-accent-fg, #fff);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.2rem;
}
.login-brand-logo { flex-shrink: 0; max-width: 48px; max-height: 48px; object-fit: contain; }
.login-brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.login-brand-title { font-weight: 700; font-size: 1.3rem; color: var(--ln-fg, var(--tinta)); }
.login-brand-sub {
  font-size: .72rem; font-weight: 500; text-transform: uppercase; letter-spacing: .04em;
  color: var(--ln-fg-subtle, #9ca3af);
}
.caja-login label { display: block; margin: .75rem 0 .25rem; font-size: .85rem; }
.caja-login-submit { width: 100%; margin-top: 1.25rem; }

/* ---- Botones (contrato: .btn + variante) ---- */
.btn {
  font-family: inherit; font-size: 13px; font-weight: 500; padding: 7px 14px;
  border-radius: var(--ln-radius-md, 6px); border: 1px solid transparent; cursor: pointer;
  background: var(--ln-surface-2, #eef1f5); color: var(--ln-fg, var(--tinta));
}
.btn-sm { font-size: 12.5px; padding: 5px 10px; }
.btn:disabled { opacity: .5; cursor: default; }
.btn-primary { background: var(--ln-accent, var(--acento)); border-color: var(--ln-accent, var(--acento)); color: var(--ln-accent-fg, #fff); }
.btn-outline-secondary { background: transparent; border-color: var(--ln-border, var(--borde)); color: var(--ln-fg-muted, var(--tinta)); }
.btn-outline-danger { background: transparent; border-color: var(--ln-border, var(--borde)); color: var(--ln-negative, #b42318); }
.limpiar { align-self: center; font-size: .85rem; color: var(--ln-accent, var(--acento)); }

/* ---- Formularios ---- */
.form-control, .form-select {
  font-family: inherit; font-size: 13.5px; padding: 8px 10px; width: 100%;
  color: var(--ln-fg, var(--tinta)); background-color: var(--ln-surface, #fff);
  border: 1px solid var(--ln-border, var(--borde)); border-radius: var(--ln-radius-md, 6px);
}
.form-control:focus, .form-select:focus {
  outline: none; border-color: var(--ln-accent, var(--acento));
  box-shadow: 0 0 0 3px var(--ln-accent-soft, rgba(46,85,117,.15));
}
/* Sin esto el <select> renderiza con el control nativo del SO/navegador (pill
   redondeado, flecha y colores propios de Windows 11/Chrome) en vez del
   estilo plano del resto de la app — el "se ven raros los combos". */
.form-select {
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  padding-right: 2.25rem; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%236b7280' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round' d='M1.5 2 6 6.2 10.5 2'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .7rem center; background-size: 11px 8px;
}
.form-label { display: block; margin: .75rem 0 .25rem; font-size: .85rem; }

/* ---- Badges (reemplaza .pastilla) ---- */
.badge {
  font-size: 10.5px; font-weight: 500; letter-spacing: .03em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 999px; display: inline-block; white-space: nowrap;
}
.badge.bg-success { background: var(--ln-positive-soft, #dcfce7); color: var(--ln-positive, #166534); }
.badge.bg-warning { background: var(--ln-warning-soft, #fef3c7); color: var(--ln-warning, #92400e); }
.badge.bg-danger { background: var(--ln-negative-soft, #fee2e2); color: var(--ln-negative, #991b1b); }
.badge.bg-secondary { background: var(--ln-surface-3, #e5e7eb); color: var(--ln-fg-muted, #374151); }

/* ---- Cuadrícula ---- */
.acciones-reporte { display: flex; gap: .5rem; margin: 0 0 .75rem; }
.resumen { display: flex; gap: .5rem; flex-wrap: wrap; margin: 0 0 1rem; }
.filtros { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; align-items: center; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; color: var(--ln-fg, var(--tinta)); }
.table th, .table td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--ln-border, var(--borde)); }
.table thead th {
  font-size: 11px; font-weight: 500; letter-spacing: .03em; text-transform: uppercase;
  color: var(--ln-fg-muted, #6b7280); background: var(--ln-surface-2, #eef1f5);
}
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.table .vacio { text-align: center; color: var(--ln-fg-muted, #6b7280); padding: 2rem; }
.aviso { margin-left: .5rem; color: var(--ln-fg-muted, #6b7280); font-size: .8rem; }
.th-ordenable { user-select: none; }
.th-ordenable a { cursor: pointer; }
.th-ordenable[data-sort-dir="asc"]::after { content: " ▲"; font-size: .7em; }
.th-ordenable[data-sort-dir="desc"]::after { content: " ▼"; font-size: .7em; }

.campo-correo { width: 100%; min-width: 180px; }
.acciones { display: flex; gap: .35rem; flex-wrap: wrap; }

.config-logo { margin-bottom: 2rem; }
.config-logo-title { margin: 0 0 .25rem; font-size: 1.05rem; font-weight: 600; }
.config-logo-row { display: flex; align-items: center; gap: 1.25rem; margin-top: .75rem; flex-wrap: wrap; }
.config-logo-preview {
  width: 140px; height: 70px; display: flex; align-items: center; justify-content: center;
  border: 1px dashed var(--ln-border, var(--borde)); border-radius: var(--ln-radius-md, 6px);
  padding: .5rem; background: var(--ln-surface, #fff);
}
.config-logo-preview img { max-width: 100%; max-height: 100%; object-fit: contain; }
.config-logo-acciones { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }

.ayuda dl { border: 1px solid var(--ln-border, var(--borde)); border-radius: 8px; padding: 1rem 1.25rem; }
.ayuda dt { margin-top: .9rem; }
.ayuda dd { margin: .35rem 0 0 0; color: var(--ln-fg-muted, #374151); font-size: .92rem; }