/* =====================================================================
   Sistema de Control de Asistencia — Hoja de estilos
   Paleta institucional sobria. Primario azul pizarra, acento ámbar tenue.
   Evita cream/terracotta genéricos. Pensado para uso administrativo diario.
   ===================================================================== */
:root {
  /* Paleta */
  --azul-900: #1b2a41;   /* barra lateral / encabezados */
  --azul-800: #223651;
  --azul-primario: #2f5d8a;
  --azul-claro: #e8f0f7;
  --acento: #c9832b;     /* ámbar sobrio para acciones destacadas */
  --acento-suave: #f6ecdb;
  --verde: #2e7d5b;
  --verde-suave: #e4f2eb;
  --rojo: #b23b3b;
  --rojo-suave: #f6e5e5;
  --gris-fondo: #f4f6f8;
  --gris-borde: #e2e6ea;
  --gris-texto: #4a5560;
  --gris-tenue: #8a949e;
  --blanco: #ffffff;

  --sombra-sm: 0 1px 2px rgba(27,42,65,.06), 0 1px 3px rgba(27,42,65,.08);
  --sombra-md: 0 2px 8px rgba(27,42,65,.08), 0 4px 16px rgba(27,42,65,.06);
  --sombra-lg: 0 8px 30px rgba(27,42,65,.12);
  --radio: 10px;
  --radio-sm: 7px;
  --sidebar-w: 250px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--gris-fondo);
  color: #26313d;
  font-size: 14.5px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 { font-family: "Sora", "Inter", sans-serif; color: var(--azul-900); }

a { color: var(--azul-primario); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------------------------------------------------------- LAYOUT */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: linear-gradient(180deg, var(--azul-900), var(--azul-800));
  color: #cfd8e3;
  display: flex; flex-direction: column;
  position: fixed; top: 0; bottom: 0; left: 0;
  z-index: 30;
  transition: transform .25s ease;
}
.sidebar__brand {
  padding: 20px 20px 16px;
  display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar__brand img { width: 38px; height: 38px; border-radius: 8px; object-fit: cover; background: #fff; }
.sidebar__brand .nombre { font-family: "Sora", sans-serif; font-weight: 600; color: #fff; font-size: 15px; line-height: 1.2; }
.sidebar__brand .sub { font-size: 11.5px; color: #92a1b5; letter-spacing: .3px; }

.sidebar__nav { padding: 12px 10px; flex: 1; overflow-y: auto; }
.sidebar__group { font-size: 10.5px; text-transform: uppercase; letter-spacing: .8px; color: #6f7f95; padding: 14px 12px 6px; }
.sidebar__link {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 12px; border-radius: var(--radio-sm);
  color: #cfd8e3; font-weight: 500; font-size: 14px;
  margin-bottom: 2px; transition: background .15s, color .15s;
}
.sidebar__link:hover { background: rgba(255,255,255,.06); color: #fff; text-decoration: none; }
.sidebar__link.activo { background: var(--azul-primario); color: #fff; box-shadow: var(--sombra-sm); }
.sidebar__link i { width: 18px; text-align: center; font-size: 15px; }

.sidebar__foot { padding: 12px; border-top: 1px solid rgba(255,255,255,.08); }
.sidebar__user { font-size: 13px; color: #b9c4d2; padding: 4px 8px 10px; }
.sidebar__user strong { color: #fff; display: block; font-size: 13.5px; }

/* ---------------------------------------------------------- CONTENIDO */
.main { flex: 1; margin-left: var(--sidebar-w); min-width: 0; }
.topbar {
  background: var(--blanco);
  border-bottom: 1px solid var(--gris-borde);
  padding: 0 24px; height: 60px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 20;
}
.topbar h1 { font-size: 19px; margin: 0; font-weight: 600; }
.topbar__right { display: flex; align-items: center; gap: 14px; }

.escuela-selector select {
  border: 1px solid var(--gris-borde); border-radius: var(--radio-sm);
  padding: 7px 12px; font-size: 13.5px; background: var(--blanco); color: var(--gris-texto);
  min-width: 200px;
}

.contenido { padding: 24px; max-width: 1400px; }

.menu-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--azul-900); cursor: pointer; }

/* ---------------------------------------------------------- TARJETAS */
.card {
  background: var(--blanco); border: 1px solid var(--gris-borde);
  border-radius: var(--radio); box-shadow: var(--sombra-sm);
  margin-bottom: 20px;
}
.card__head {
  padding: 16px 20px; border-bottom: 1px solid var(--gris-borde);
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.card__head h2 { font-size: 16px; margin: 0; }
.card__body { padding: 20px; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat {
  background: var(--blanco); border: 1px solid var(--gris-borde); border-radius: var(--radio);
  padding: 18px 20px; box-shadow: var(--sombra-sm);
  display: flex; align-items: center; gap: 16px;
}
.stat__icon {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  display: grid; place-items: center; font-size: 20px;
}
.stat__icon.azul { background: var(--azul-claro); color: var(--azul-primario); }
.stat__icon.verde { background: var(--verde-suave); color: var(--verde); }
.stat__icon.ambar { background: var(--acento-suave); color: var(--acento); }
.stat__icon.rojo { background: var(--rojo-suave); color: var(--rojo); }
.stat__num { font-family: "Sora", sans-serif; font-size: 26px; font-weight: 700; color: var(--azul-900); line-height: 1; }
.stat__label { font-size: 12.5px; color: var(--gris-tenue); text-transform: uppercase; letter-spacing: .4px; margin-top: 4px; }

/* ---------------------------------------------------------- BOTONES */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 15px; border-radius: var(--radio-sm); border: 1px solid transparent;
  font-size: 13.5px; font-weight: 500; cursor: pointer; transition: all .15s;
  background: var(--blanco); color: var(--gris-texto); font-family: inherit;
  text-decoration: none; line-height: 1.2;
}
.btn:hover { text-decoration: none; }
.btn i { font-size: 14px; }
.btn--primary { background: var(--azul-primario); color: #fff; border-color: var(--azul-primario); }
.btn--primary:hover { background: #26507a; color: #fff; }
.btn--accent { background: var(--acento); color: #fff; border-color: var(--acento); }
.btn--accent:hover { background: #b4741f; color: #fff; }
.btn--ghost { border-color: var(--gris-borde); color: var(--gris-texto); }
.btn--ghost:hover { background: var(--gris-fondo); }
.btn--danger { background: var(--rojo-suave); color: var(--rojo); border-color: #eecdcd; }
.btn--danger:hover { background: var(--rojo); color: #fff; }
.btn--sm { padding: 5px 10px; font-size: 12.5px; }
.btn--icon { padding: 6px 9px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.btn-group-x { display: inline-flex; gap: 6px; flex-wrap: wrap; }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 4px; }
.toolbar .spacer { flex: 1; }

/* ---------------------------------------------------------- BADGES */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; border-radius: 20px; font-size: 11.5px; font-weight: 600;
}
.badge--verde { background: var(--verde-suave); color: var(--verde); }
.badge--rojo { background: var(--rojo-suave); color: var(--rojo); }
.badge--gris { background: #eef1f4; color: var(--gris-tenue); }
.badge--ambar { background: var(--acento-suave); color: var(--acento); }
.badge--azul { background: var(--azul-claro); color: var(--azul-primario); }
.badge i { font-size: 11px; }

/* ---------------------------------------------------------- TABLAS (DataTables) */
table.dataTable { border-collapse: collapse !important; width: 100% !important; font-size: 13.5px; }
table.dataTable thead th {
  background: #f7f9fb; color: var(--azul-900); font-weight: 600; font-size: 12.5px;
  text-transform: uppercase; letter-spacing: .3px;
  border-bottom: 2px solid var(--gris-borde) !important; padding: 11px 12px; text-align: left;
}
table.dataTable tbody td { padding: 10px 12px; border-bottom: 1px solid #eef1f4 !important; vertical-align: middle; }
table.dataTable tbody tr:hover { background: #fafbfc; }
.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  border: 1px solid var(--gris-borde); border-radius: var(--radio-sm); padding: 6px 10px; font-size: 13px; outline: none;
}
.dataTables_wrapper .dataTables_filter input:focus { border-color: var(--azul-primario); }
.dataTables_wrapper .dataTables_paginate .paginate_button {
  border-radius: var(--radio-sm) !important; padding: 5px 11px !important; font-size: 13px;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
  background: var(--azul-primario) !important; border-color: var(--azul-primario) !important; color: #fff !important;
}
.dt-buttons { display: inline-flex; gap: 6px; }
.dt-buttons .dt-button {
  background: var(--blanco) !important; border: 1px solid var(--gris-borde) !important;
  border-radius: var(--radio-sm) !important; padding: 7px 13px !important; font-size: 13px !important;
  color: var(--gris-texto) !important; box-shadow: none !important; font-weight: 500;
}
.dt-buttons .dt-button:hover { background: var(--gris-fondo) !important; }

/* ---------------------------------------------------------- FORMULARIOS */
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 18px; }
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 2px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 12.5px; font-weight: 600; color: var(--gris-texto); }
.form-group label .opc { font-weight: 400; color: var(--gris-tenue); font-size: 11.5px; }
.form-group input, .form-group select, .form-group textarea {
  border: 1px solid var(--gris-borde); border-radius: var(--radio-sm);
  padding: 9px 12px; font-size: 14px; font-family: inherit; color: #26313d; background: #fff;
  outline: none; transition: border-color .15s, box-shadow .15s; width: 100%;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--azul-primario); box-shadow: 0 0 0 3px rgba(47,93,138,.12);
}
.form-hint { font-size: 12px; color: var(--gris-tenue); }

/* ---------------------------------------------------------- MODALES */
.modal-backdrop-x {
  position: fixed; inset: 0; background: rgba(27,42,65,.5);
  display: none; align-items: flex-start; justify-content: center; z-index: 60;
  padding: 40px 16px; overflow-y: auto;
}
.modal-backdrop-x.abierto { display: flex; }
.modal-x {
  background: #fff; border-radius: 14px; box-shadow: var(--sombra-lg);
  width: 100%; max-width: 560px; animation: subir .2s ease;
}
.modal-x.ancho { max-width: 720px; }
@keyframes subir { from { transform: translateY(12px); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-x__head { padding: 18px 22px; border-bottom: 1px solid var(--gris-borde); display: flex; align-items: center; justify-content: space-between; }
.modal-x__head h3 { margin: 0; font-size: 17px; }
.modal-x__body { padding: 22px; }
.modal-x__foot { padding: 16px 22px; border-top: 1px solid var(--gris-borde); display: flex; justify-content: flex-end; gap: 10px; }
.modal-x__close { background: none; border: none; font-size: 22px; color: var(--gris-tenue); cursor: pointer; line-height: 1; }

/* ---------------------------------------------------------- TOAST */
.toast-zona { position: fixed; top: 18px; right: 18px; z-index: 90; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: #fff; border-left: 4px solid var(--azul-primario); border-radius: var(--radio-sm);
  box-shadow: var(--sombra-md); padding: 13px 18px; min-width: 260px; max-width: 380px;
  display: flex; align-items: flex-start; gap: 10px; animation: subir .2s ease;
  font-size: 13.5px;
}
.toast.ok { border-left-color: var(--verde); }
.toast.err { border-left-color: var(--rojo); }
.toast i { font-size: 16px; margin-top: 1px; }
.toast.ok i { color: var(--verde); }
.toast.err i { color: var(--rojo); }

/* ---------------------------------------------------------- MISC */
.tabla-acciones { display: inline-flex; gap: 5px; }
.mapa { height: 420px; border-radius: var(--radio); overflow: hidden; border: 1px solid var(--gris-borde); }
.empty {
  text-align: center; padding: 50px 20px; color: var(--gris-tenue);
}
.empty i { font-size: 40px; opacity: .4; display: block; margin-bottom: 12px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.chart-box { position: relative; height: 300px; }
.logo-preview { width: 90px; height: 90px; border-radius: 12px; border: 1px solid var(--gris-borde); object-fit: cover; background: var(--gris-fondo); }

/* ---------------------------------------------------------- RESPONSIVE */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.abierto { transform: none; box-shadow: var(--sombra-lg); }
  .main { margin-left: 0; }
  .menu-toggle { display: block; }
  .form-row, .grid-2 { grid-template-columns: 1fr; }
  .escuela-selector select { min-width: 140px; }
}

/* Focus visible accesible */
:focus-visible { outline: 2px solid var(--azul-primario); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }