/* ------------------------------------------------------------------
   Panel de administración — ITESCO Campus Coatzacoalcos
   ------------------------------------------------------------------ */

:root {
    --azul-tecnm: #1b396a;
    --azul-oscuro: #14294c;
    --gris-fondo: #f2f4f7;
    --borde: #e3e6ec;
}

body.admin {
    background: var(--gris-fondo);
    font-family: Roboto, "Segoe UI", system-ui, sans-serif;
}

/* ---------- Estructura ---------- */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 264px;
    flex-shrink: 0;
    background: var(--azul-tecnm);
    color: #fff;
    display: flex;
    flex-direction: column;
}

.admin-sidebar .marca {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: 1.1rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.admin-sidebar .marca img {
    height: 40px;
    width: auto;
    background: #fff;
    border-radius: 6px;
    padding: 3px;
}

.admin-sidebar .marca strong {
    display: block;
    font-size: .95rem;
    line-height: 1.2;
}

.admin-sidebar .marca span {
    font-size: .75rem;
    opacity: .7;
}

.admin-nav {
    padding: .75rem 0 2rem;
    overflow-y: auto;
}

.admin-nav .grupo {
    margin: 1.1rem 0 .3rem;
    padding: 0 1rem;
    font-size: .68rem;
    letter-spacing: .09em;
    text-transform: uppercase;
    opacity: .55;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .55rem 1rem;
    color: rgba(255, 255, 255, .88);
    text-decoration: none;
    font-size: .92rem;
    border-left: 3px solid transparent;
}

.admin-nav a:hover {
    background: rgba(255, 255, 255, .08);
    color: #fff;
}

.admin-nav a.activo {
    background: rgba(255, 255, 255, .14);
    border-left-color: #fff;
    font-weight: 500;
}

.admin-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.admin-topbar {
    background: #fff;
    border-bottom: 1px solid var(--borde);
    padding: .9rem 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.admin-topbar h1 {
    font-size: 1.4rem;
    margin: 0;
    color: var(--azul-tecnm);
}

.admin-topbar p {
    margin: .15rem 0 0;
    font-size: .85rem;
    color: #6b7280;
}

.admin-topbar .usuario {
    text-align: right;
    line-height: 1.2;
}

.admin-topbar .usuario strong {
    display: block;
    font-size: .88rem;
}

.admin-topbar .usuario span {
    font-size: .75rem;
    color: #6b7280;
}

.admin-contenido {
    padding: 1.75rem;
    flex: 1;
}

/* ---------- Bloques ---------- */
.panel {
    background: #fff;
    border: 1px solid var(--borde);
    border-radius: 10px;
    padding: 1.25rem;
}

.panel h2 {
    font-size: 1.1rem;
    color: var(--azul-tecnm);
    margin-bottom: .75rem;
}

.barra-acciones {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.1rem;
    flex-wrap: wrap;
}

.vacio {
    background: #fff;
    border: 1px dashed #c9cfda;
    border-radius: 10px;
    padding: 2.5rem;
    text-align: center;
    color: #6b7280;
}

.pie-formulario {
    display: flex;
    justify-content: flex-end;
    gap: .6rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--borde);
}

/* ---------- Escritorio ---------- */
.rejilla-tarjetas {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
    gap: 1rem;
}

.tarjeta-modulo {
    background: #fff;
    border: 1px solid var(--borde);
    border-radius: 10px;
    padding: 1.1rem;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: transform .15s, box-shadow .15s;
}

.tarjeta-modulo:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(27, 57, 106, .12);
    color: inherit;
}

.tarjeta-modulo .icono {
    font-size: 1.6rem;
}

.tarjeta-modulo .nombre {
    font-weight: 600;
    color: var(--azul-tecnm);
    margin-top: .35rem;
}

.tarjeta-modulo .cifra {
    font-size: 1.9rem;
    font-weight: 300;
    line-height: 1.1;
    margin-top: .4rem;
}

.tarjeta-modulo .cifra small {
    font-size: 1rem;
    color: #9aa3b2;
}

.tarjeta-modulo .pie {
    font-size: .74rem;
    color: #6b7280;
}

/* ---------- Tablas ---------- */
.table thead th {
    font-size: .76rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: #6b7280;
    border-bottom-width: 1px;
}

.fila-oculta {
    background: #fbfbfc;
    opacity: .62;
}

.acciones {
    display: flex;
    gap: .35rem;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.acciones form {
    margin: 0;
}

.miniatura {
    width: 110px;
    height: 78px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--borde);
    background: #fff;
}

.miniatura-mini {
    width: 56px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
}

.miniatura-banner {
    width: 260px;
    height: 76px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--borde);
}

.miniatura-logo {
    width: 130px;
    height: 62px;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--borde);
    border-radius: 6px;
    padding: 4px;
}

.vista-previa {
    width: 100%;
    max-height: 320px;
    object-fit: contain;
    border: 1px solid var(--borde);
    border-radius: 8px;
    background: #fafbfc;
    padding: 6px;
}

/* ---------- Editor ---------- */
.editor-rico {
    background: #fff;
    min-height: 180px;
}

.editor-rico.editor-alto {
    min-height: 340px;
}

.ql-toolbar.ql-snow,
.ql-container.ql-snow {
    border-color: #ced4da;
}

.ql-toolbar.ql-snow {
    border-radius: .375rem .375rem 0 0;
}

.ql-container.ql-snow {
    border-radius: 0 0 .375rem .375rem;
}

/* ---------- Galería del editor de noticias ---------- */
.galeria-editor {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
    gap: .5rem;
}

.galeria-editor .foto {
    position: relative;
    cursor: pointer;
    display: block;
}

.galeria-editor .foto img {
    width: 100%;
    height: 70px;
    object-fit: cover;
    border-radius: 6px;
    border: 2px solid transparent;
}

.galeria-editor .foto input {
    position: absolute;
    top: 4px;
    left: 4px;
    z-index: 2;
}

.galeria-editor .foto input:not(:checked) + img {
    opacity: .35;
    border-color: #dc3545;
}

/* ---------- Árbol del menú ---------- */
.arbol-menu,
.arbol-menu ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.arbol-menu ul {
    padding-left: 1.5rem;
    border-left: 1px dashed #d4d9e2;
    margin-left: .6rem;
}

.rama-fila {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .45rem .6rem;
    border-radius: 6px;
    flex-wrap: wrap;
}

.rama-fila:hover {
    background: #f6f8fb;
}

.rama.inactiva > .rama-fila {
    opacity: .55;
}

.rama-titulo {
    font-weight: 500;
    min-width: 0;
}

.rama-url {
    display: inline-block;
    margin-left: .5rem;
    font-size: .78rem;
    font-weight: 400;
    color: #6b7280;
    word-break: break-all;
}

.rama-acciones {
    display: flex;
    gap: .25rem;
    align-items: center;
}

.rama-acciones form {
    margin: 0;
}

/* ---------- Permisos ---------- */
.rejilla-permisos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.modulo-permisos {
    border: 1px solid var(--borde);
    border-radius: 8px;
    padding: .9rem 1rem 1rem;
}

.modulo-permisos legend {
    float: none;
    width: auto;
    font-size: .8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--azul-tecnm);
    padding: 0 .35rem;
    margin-bottom: .5rem;
}

.modulo-permisos .form-check {
    margin-bottom: .6rem;
}

/* ---------- Login ---------- */
body.pantalla-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--azul-tecnm), var(--azul-oscuro));
    padding: 2rem 1rem;
}

.tarjeta-login {
    background: #fff;
    border-radius: 14px;
    padding: 2.25rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, .28);
    text-align: left;
}

.tarjeta-login .logo {
    height: 62px;
    display: block;
    margin: 0 auto .9rem;
}

.tarjeta-login h1 {
    font-size: 1.3rem;
    text-align: center;
    color: var(--azul-tecnm);
    margin-bottom: .15rem;
}

.tarjeta-login .subtitulo {
    text-align: center;
    font-size: .82rem;
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.tarjeta-login .volver {
    display: block;
    text-align: center;
    margin-top: 1.25rem;
    font-size: .85rem;
    color: #6b7280;
    text-decoration: none;
}

/* ---------- Responsivo ---------- */
@media (max-width: 991.98px) {
    .admin-wrapper {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
    }

    .admin-nav {
        display: flex;
        flex-wrap: wrap;
        padding-bottom: .75rem;
    }

    .admin-nav .grupo {
        width: 100%;
        margin-top: .5rem;
    }

    .admin-nav a {
        border-left: 0;
        border-bottom: 3px solid transparent;
    }

    .admin-nav a.activo {
        border-left: 0;
        border-bottom-color: #fff;
    }

    .admin-contenido {
        padding: 1rem;
    }
}