/* ═══════════════════════════════════════════════════════════
   Menú móvil / tablet — panel lateral moderno
   ═══════════════════════════════════════════════════════════ */

@media (min-width: 992px) {
    .nav-drawer-head,
    .nav-drawer-foot,
    .nav-link-icon {
        display: none !important;
    }

    .nav-dropdown > .nav-link .nav-chevron {
        display: inline-block !important;
        margin-left: 0.2rem;
        font-size: 0.62rem;
        color: inherit;
        opacity: 0.55;
        transition: transform 0.2s ease;
    }

    .nav-dropdown:hover > .nav-link .nav-chevron {
        transform: rotate(180deg);
    }
}

@media (max-width: 991px) {
    /* Backdrop */
    .nav-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.55);
        backdrop-filter: blur(2px);
        -webkit-backdrop-filter: blur(2px);
        z-index: 10030;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.28s ease, visibility 0.28s ease;
        border: none;
        padding: 0;
        cursor: pointer;
    }

    .nav-backdrop.is-visible {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    body.nav-open {
        overflow: hidden !important;
    }

    body.nav-open .header {
        position: relative;
        z-index: 10040;
    }

    /* Botón hamburguesa — se queda en el header, animación a X */
    .menu-toggle {
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        width: 40px;
        height: 40px;
        padding: 0;
        border: 1.5px solid rgba(0, 71, 171, 0.22);
        border-radius: 10px;
        background: #fff;
        cursor: pointer;
        flex-shrink: 0;
        position: relative;
        z-index: 10052;
        transition: background 0.2s ease, border-color 0.2s ease;
    }

    .menu-toggle span {
        display: block;
        width: 18px;
        height: 2px;
        background: #0047ab;
        border-radius: 2px;
        transition: transform 0.25s ease, opacity 0.2s ease;
        transform-origin: center;
    }

    .menu-toggle.active {
        position: relative !important;
        top: auto !important;
        left: auto !important;
        background: #eff6ff;
        border-color: #bfdbfe;
    }

    .menu-toggle.active span {
        background: #0047ab !important;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* Panel lateral */
    .navbar .nav-menu {
        display: flex !important;
        flex-direction: column !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: 0 !important;
        width: min(360px, 100vw) !important;
        max-width: 100vw !important;
        z-index: 10045 !important;
        margin: 0 !important;
        padding: 0 !important;
        list-style: none !important;
        background: #fff !important;
        box-shadow: 8px 0 32px rgba(0, 0, 0, 0.18) !important;
        overflow-x: hidden !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch;
        transform: translateX(-105%) !important;
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
        transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.28s ease, visibility 0.28s ease !important;
        gap: 0 !important;
    }

    .navbar .nav-menu::before {
        display: none !important;
        content: none !important;
    }

    .navbar .nav-menu.active {
        transform: translateX(0) !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
    }

    /* Cabecera del drawer */
    .nav-drawer-head {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        gap: 0.75rem;
        padding: max(0.85rem, env(safe-area-inset-top, 0px)) 1rem 0.85rem;
        background: linear-gradient(135deg, #0047ab 0%, #003380 100%);
        border-bottom: none !important;
        position: sticky;
        top: 0;
        z-index: 3;
        flex-shrink: 0;
    }

    .nav-drawer-brand {
        display: flex;
        align-items: center;
        gap: 0.65rem;
        min-width: 0;
    }

    .nav-drawer-logo {
        height: 36px;
        width: auto;
        max-width: 52px;
        object-fit: contain;
        background: #fff;
        border-radius: 8px;
        padding: 3px;
    }

    .nav-drawer-brand strong {
        display: block;
        font-size: 0.88rem;
        font-weight: 800;
        color: #fff;
        line-height: 1.2;
    }

    .nav-drawer-brand span {
        display: block;
        font-size: 0.68rem;
        font-weight: 500;
        color: rgba(255, 255, 255, 0.78);
        margin-top: 0.1rem;
    }

    .nav-drawer-close {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border: none;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.16);
        color: #fff;
        font-size: 1rem;
        cursor: pointer;
        flex-shrink: 0;
        transition: background 0.2s ease;
    }

    .nav-drawer-close:hover,
    .nav-drawer-close:focus-visible {
        background: rgba(255, 255, 255, 0.28);
    }

    /* Enlaces principales */
    .navbar .nav-menu > li:not(.nav-drawer-head):not(.nav-drawer-foot) {
        width: 100% !important;
        border-bottom: 1px solid #f1f5f9 !important;
    }

    .navbar .nav-link {
        display: flex !important;
        align-items: center !important;
        gap: 0.65rem !important;
        width: 100% !important;
        min-height: 50px;
        padding: 0.75rem 1rem !important;
        font-size: 0.92rem !important;
        font-weight: 600 !important;
        color: #1e293b !important;
        border-radius: 0 !important;
        margin: 0 !important;
        line-height: 1.3 !important;
        text-decoration: none;
        transition: background 0.15s ease, color 0.15s ease;
    }

    .navbar .nav-link:hover,
    .navbar .nav-link:focus-visible {
        background: #f8fafc !important;
        color: #0047ab !important;
    }

    .navbar .nav-link.active {
        color: #0047ab !important;
        background: #eff6ff !important;
        box-shadow: inset 3px 0 0 #0047ab;
    }

    .nav-link-icon {
        width: 18px;
        text-align: center;
        color: #0047ab;
        font-size: 0.85rem;
        flex-shrink: 0;
        opacity: 0.9;
    }

    .nav-chevron {
        margin-left: auto !important;
        font-size: 0.72rem !important;
        color: #94a3b8 !important;
        transition: transform 0.25s ease;
        flex-shrink: 0;
    }

    .navbar .nav-link .arrow {
        display: none !important;
    }

    .navbar .nav-dropdown.active > .nav-link .nav-chevron {
        transform: rotate(180deg);
        color: #0047ab !important;
    }

    .navbar .nav-dropdown.active > .nav-link {
        background: #f8fafc !important;
        color: #0047ab !important;
    }

    /* Submenús acordeón */
    .navbar .dropdown-menu {
        position: static !important;
        display: block !important;
        max-height: 0 !important;
        overflow: hidden !important;
        opacity: 0 !important;
        box-shadow: none !important;
        background: #f8fafc !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
        border-top: 1px solid transparent !important;
        transition: max-height 0.32s ease, opacity 0.25s ease, padding 0.25s ease !important;
        min-width: 0 !important;
    }

    .navbar .nav-dropdown.active .dropdown-menu {
        max-height: 520px !important;
        opacity: 1 !important;
        padding: 0.25rem 0 0.5rem !important;
        border-top-color: #e2e8f0 !important;
    }

    .navbar .nav-dropdown.has-active .dropdown-menu {
        max-height: 520px !important;
        opacity: 1 !important;
    }

    .navbar .dropdown-menu li {
        border-bottom: none !important;
    }

    .navbar .dropdown-menu a {
        display: flex !important;
        align-items: center !important;
        gap: 0.55rem !important;
        min-height: 44px;
        padding: 0.55rem 1rem 0.55rem 2.5rem !important;
        font-size: 0.84rem !important;
        font-weight: 500 !important;
        color: #475569 !important;
        line-height: 1.35 !important;
        text-decoration: none;
        transition: background 0.15s ease, color 0.15s ease, padding-left 0.15s ease;
    }

    .navbar .dropdown-menu a i {
        width: 16px !important;
        font-size: 0.78rem !important;
        color: #0047ab !important;
        opacity: 0.85;
        text-align: center;
    }

    .navbar .dropdown-menu a:hover,
    .navbar .dropdown-menu a:focus-visible,
    .navbar .dropdown-menu a.active {
        color: #0047ab !important;
        background: #eff6ff !important;
        padding-left: 2.65rem !important;
    }

    /* Pie del drawer — acciones rápidas */
    .nav-drawer-foot {
        display: flex !important;
        flex-direction: column;
        gap: 0.5rem;
        margin-top: auto !important;
        padding: 1rem 1rem max(1rem, env(safe-area-inset-bottom, 0px));
        background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
        border-top: 1px solid #e2e8f0 !important;
        position: sticky;
        bottom: 0;
        z-index: 2;
        flex-shrink: 0;
    }

    .nav-drawer-cta {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.45rem;
        min-height: 46px;
        padding: 0.65rem 1rem;
        border-radius: 12px;
        font-size: 0.88rem;
        font-weight: 700;
        text-decoration: none;
        transition: transform 0.15s ease, box-shadow 0.15s ease;
    }

    .nav-drawer-cta:active {
        transform: scale(0.98);
    }

    .nav-drawer-cta--primary {
        background: linear-gradient(135deg, #0047ab, #003380);
        color: #fff;
        box-shadow: 0 4px 14px rgba(0, 71, 171, 0.28);
    }

    .nav-drawer-cta--aula {
        background: #fff;
        color: #0047ab;
        border: 1.5px solid #bfdbfe;
    }

    .nav-drawer-cta--panel {
        background: #f8fafc;
        color: #334155;
        border: 1.5px solid #e2e8f0;
    }

    .nav-drawer-cta--wa {
        background: #25d366;
        color: #fff;
        box-shadow: 0 4px 12px rgba(37, 211, 102, 0.28);
    }

    /* Buscador — botón en header-actions (ya no en drawer) */
    .navbar .btn-buscar-header {
        display: none !important;
    }
}

/* Móvil — panel casi pantalla completa */
@media (max-width: 639px) {
    .navbar .nav-menu {
        width: 100vw !important;
        max-width: 100vw !important;
    }

    .header-aula-btn__label {
        display: none;
    }

    .header-ingresar-btn__label {
        display: none;
    }

    .header-search-btn__label {
        display: none;
    }

    .header-aula-btn {
        width: 40px;
        height: 40px;
        padding: 0 !important;
        border-radius: 10px !important;
    }

    .header-ingresar-btn {
        width: 40px;
        height: 40px;
        padding: 0 !important;
        border-radius: 10px !important;
    }

    .header-search-btn {
        width: 40px;
        height: 40px;
        padding: 0 !important;
        border-radius: 10px !important;
    }
}

/* Tablet — panel lateral más estrecho */
@media (min-width: 640px) and (max-width: 991px) {
    .navbar .nav-menu {
        width: min(380px, 42vw) !important;
        border-radius: 0 16px 16px 0;
    }
}

/* Desktop — menú horizontal siempre visible */
@media (min-width: 992px) {
    .header-actions {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
    }

    .menu-toggle {
        display: none !important;
    }

    .nav-backdrop,
    .nav-backdrop.is-visible {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
    }

    .navbar .nav-menu,
    .navbar .nav-menu:not(.active),
    .navbar .nav-menu.active {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: wrap !important;
        flex: 1 1 auto !important;
        justify-content: center !important;
        align-items: center !important;
        position: static !important;
        inset: auto !important;
        width: auto !important;
        max-width: none !important;
        height: auto !important;
        min-height: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        transform: none !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
        overflow: visible !important;
        box-shadow: none !important;
        background: transparent !important;
        gap: 0.1rem !important;
        z-index: auto !important;
        list-style: none !important;
    }

    .navbar .nav-menu > li {
        width: auto !important;
        border-bottom: none !important;
    }

    .navbar .nav-link {
        width: auto !important;
        min-height: 0 !important;
        padding: 0.55rem 0.72rem !important;
        font-size: 0.84rem !important;
        white-space: nowrap;
    }

    .navbar .dropdown-menu {
        position: absolute !important;
        display: none !important;
        max-height: none !important;
        opacity: 1 !important;
        overflow: visible !important;
    }

    .navbar .nav-dropdown:hover .dropdown-menu {
        display: block !important;
    }
}