/* ==========================================================================
   RESPONSIVE — Consolida todos los @media del proyecto.
   Debe cargarse AL FINAL, después de todos los demás archivos CSS,
   para que estas reglas puedan sobreescribir las anteriores.
   ========================================================================== */

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    body {
        background-attachment: scroll;
    }

    .container {
        padding-left: var(--container-padding);
        padding-right: var(--container-padding);
    }

    /* Navbar institucional */
    .navbar-institucional {
        padding: 0.75rem 0;
    }

    .navbar-institucional .navbar-toggler {
        border-color: rgba(255, 255, 255, 0.45);
    }

    .navbar-institucional .navbar-toggler-icon {
        filter: invert(1);
    }

    .navbar-institucional .nav-link {
        color: #ffffff !important;
        padding: 0.75rem 0;
    }

    .navbar-institucional .navbar-collapse,
    .navbar-collapse {
        background: rgba(0, 0, 0, 0.15);
        padding: 1rem;
        border-radius: 12px;
        margin-top: 0.75rem;
    }

    /* Hero */
    .hero-section {
        padding: 3rem 1rem 4rem;
        border-radius: 0 0 30px 30px;
    }

    .hero-badge {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    /* Formulario */
    .form-card {
        transform: translateY(-20px);
        margin: 0 0.5rem 1rem;
        border-radius: 20px;
    }

    .form-card form {
        padding: 1.25rem !important;
    }

    .form-floating {
        display: block;
    }

    .form-control,
    .form-select,
    .btn-submit {
        width: 100%;
    }

    .btn-submit {
        padding: 1rem 1.25rem;
    }

    /* Tablas */
    .table-responsive {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .table-responsive table {
        min-width: 720px;
        width: 100%;
    }

    .table-responsive td,
    .table-responsive th {
        white-space: normal;
    }

    .dataTables_wrapper .dataTables_length,
    .dataTables_wrapper .dataTables_filter {
        width: 100%;
    }

    /* Admin */
    .admin-navbar .container-fluid {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .admin-navbar a.btn,
    .admin-navbar .btn {
        width: 100%;
    }

    .admin-table-card {
        padding: 1rem;
    }

    .stat-card {
        padding: 1.3rem;
    }

    .btn-action {
        min-width: 44px;
        min-height: 44px;
    }

    .btn-ver-mensaje {
        width: 100%;
    }

    /* Cards genérico */
    .row > [class*="col-"] {
        margin-bottom: 1rem;
    }
}

@media (min-width: 768px) {
    .btn-submit {
        width: auto;
        min-width: 200px;
    }

    .info-item span {
        font-size: 0.875rem;
    }
}

/* Touch devices */
@media (hover: none) and (pointer: coarse) {
    .btn-submit:hover,
    .stat-card:hover,
    .info-item:hover {
        transform: none;
    }

    button,
    .btn-action,
    .btn-logout,
    .nav-link {
        min-height: 44px;
        min-width: 44px;
    }
}

/* Impresión */
@media print {
    .hero-section,
    .btn-submit,
    .footer-institucional,
    .admin-navbar {
        display: none;
    }

    .form-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* Accesibilidad: reducir movimiento */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Modo oscuro del sistema */
@media (prefers-color-scheme: dark) {
    :root {
        --gray-light: #ffffff;
        --white: #ffffff;
        --text-dark: #e2e8f0;
        --text-muted: #94a3b8;
        --gray-mid: #334155;
    }

    body {
        background-image: linear-gradient(135deg, rgba(240, 235, 235, 0.95), rgba(255, 255, 255, 0.274)), url('../img/fondo.png');
    }

    .form-card,
    .stat-card,
    .login-card {
        background: rgba(30, 30, 46, 0.98);
    }
}