:root {
    --azul-principal: #0d3b66;
    --azul-claro: #1d5a94;
    --celeste: #4fa8e0;
    --fondo: #f2f5f8;
    --blanco: #ffffff;
    --gris-texto: #444;
    --gris-borde: #dfe4ea;
    --verde: #2e8b57;
    --rojo: #c0392b;
    --radio: 14px;
    --sombra: 0 2px 8px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--fondo);
    color: var(--gris-texto);
    -webkit-tap-highlight-color: transparent;
}

/* ===== Header público ===== */
.app-header {
    background: linear-gradient(135deg, var(--azul-principal), var(--azul-claro));
    color: var(--blanco);
    padding: 28px 20px 22px;
    text-align: center;
    border-radius: 0 0 24px 24px;
    box-shadow: var(--sombra);
}
.app-header h1 {
    margin: 0 0 4px;
    font-size: 1.5rem;
}
.app-subtitulo {
    margin: 0;
    opacity: 0.9;
    font-size: 0.9rem;
}

/* ===== Contenido ===== */
.app-main {
    max-width: 760px;
    margin: 0 auto;
    padding: 16px 12px 90px;
}

.seccion-categoria {
    margin-bottom: 22px;
}

.titulo-categoria {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--azul-principal);
    margin: 0 4px 10px;
    padding-left: 4px;
    border-left: 4px solid var(--celeste);
}

/* ===== Grilla de botones (la "botonera") ===== */
.grilla-botones {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

@media (min-width: 480px) {
    .grilla-botones { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 700px) {
    .grilla-botones { grid-template-columns: repeat(5, 1fr); }
}

.boton-portal {
    background: var(--blanco);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 14px 6px;
    text-decoration: none;
    color: var(--gris-texto);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
    min-height: 92px;
    text-align: center;
}
.boton-portal:active {
    transform: scale(0.95);
    box-shadow: 0 1px 3px rgba(0,0,0,0.12);
}
.boton-telefono {
    background: #eafaf1;
}

.icono-boton {
    font-size: 28px;
    line-height: 1;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.icono-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 6px;
}

.nombre-boton {
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.15;
    word-break: break-word;
}

.sin-datos {
    text-align: center;
    color: #888;
    padding: 40px 20px;
}

/* ===== Footer ===== */
.app-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--blanco);
    border-top: 1px solid var(--gris-borde);
    padding: 10px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.link-admin {
    font-size: 0.8rem;
    color: #999;
    text-decoration: none;
}
.btn-instalar {
    background: var(--azul-principal);
    color: var(--blanco);
    border: none;
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.85rem;
    cursor: pointer;
}

/* ===== Admin ===== */
.admin-body {
    background: var(--fondo);
}
.admin-header {
    background: var(--azul-principal);
    color: var(--blanco);
    padding: 16px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
}
.admin-header h1 { margin: 0; font-size: 1.15rem; }
.admin-header-acciones { display: flex; gap: 14px; align-items: center; font-size: 0.85rem; }
.admin-header-acciones a { color: var(--blanco); text-decoration: underline; }

.admin-main {
    max-width: 960px;
    margin: 0 auto;
    padding: 18px 14px 60px;
}

.panel-caja {
    background: var(--blanco);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    padding: 18px;
    margin-bottom: 20px;
}
.panel-caja h2 {
    margin-top: 0;
    font-size: 1.05rem;
    color: var(--azul-principal);
}
.contador { color: #999; font-weight: normal; font-size: 0.85rem; }

.form-portal { display: flex; flex-direction: column; gap: 12px; }
.form-fila { display: flex; flex-wrap: wrap; gap: 12px; }
.form-campo { flex: 1; min-width: 140px; display: flex; flex-direction: column; gap: 4px; }
.form-campo-grande { flex: 2; min-width: 220px; }
.form-campo label { font-size: 0.8rem; color: #666; }
.form-campo input, .form-campo select {
    padding: 9px 10px;
    border: 1px solid var(--gris-borde);
    border-radius: 8px;
    font-size: 0.9rem;
}

.btn-primario {
    background: var(--azul-principal);
    color: var(--blanco);
    border: none;
    padding: 11px 18px;
    border-radius: 8px;
    font-size: 0.95rem;
    cursor: pointer;
    align-self: flex-start;
}
.btn-primario:hover { background: var(--azul-claro); }

.tabla-admin {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.tabla-admin th, .tabla-admin td {
    padding: 8px 6px;
    border-bottom: 1px solid var(--gris-borde);
    text-align: left;
}
.fila-inactiva { opacity: 0.45; }
.icono-mini { width: 24px; height: 24px; object-fit: contain; }
.icono-vacio { display: inline-flex; }
.celda-url { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.celda-acciones { display: flex; gap: 6px; }
.btn-chico {
    font-size: 0.78rem;
    padding: 5px 9px;
    border-radius: 6px;
    border: 1px solid var(--gris-borde);
    background: var(--fondo);
    text-decoration: none;
    color: var(--gris-texto);
    cursor: pointer;
}
.btn-peligro { color: var(--rojo); border-color: #f3c9c3; }
.btn-toggle { background: none; border: none; font-size: 1.1rem; cursor: pointer; }
.form-toggle { display: inline; }

.alerta-exito {
    background: #eafaf1;
    color: var(--verde);
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}
.alerta-error {
    background: #fdecea;
    color: var(--rojo);
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 14px;
    font-size: 0.9rem;
}

/* ===== Login ===== */
.login-box {
    max-width: 340px;
    margin: 80px auto;
    background: var(--blanco);
    padding: 28px;
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    text-align: center;
}
.login-box h1 { font-size: 1.2rem; margin-bottom: 2px; color: var(--azul-principal); }
.subtitulo { color: #888; font-size: 0.85rem; margin-bottom: 18px; }
.login-box form { display: flex; flex-direction: column; gap: 10px; text-align: left; }
.login-box label { font-size: 0.8rem; color: #666; }
.login-box input {
    padding: 10px;
    border: 1px solid var(--gris-borde);
    border-radius: 8px;
    font-size: 0.95rem;
}
.link-volver {
    display: inline-block;
    margin-top: 16px;
    font-size: 0.82rem;
    color: #888;
    text-decoration: none;
}