/* =========================================================
   NAVBAR
   Pílula flutuante (identidade que já era da Alfa), agora
   em azul-marinho com o logo circular à esquerda.
   Desktop: >= 1100px | Mobile: gaveta lateral.
========================================================= */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px var(--gutter) 0;
    pointer-events: none; /* só a pílula recebe cliques */
    transition: padding var(--t) var(--ease);
}

.navbar-container {
    position: relative;
    isolation: isolate;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 24px;
    max-width: var(--container);
    height: 72px;
    margin: 0 auto;
    padding: 0 12px 0 10px;
    border-radius: var(--radius-pill);
    transition: height var(--t) var(--ease);
}

/* Fundo da pílula num pseudo-elemento: o blur não pode ficar no
   próprio container, senão a gaveta mobile (position: fixed)
   ficaria presa dentro da pílula. */
.navbar-container::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    border: 1px solid rgb(255 255 255 / .08);
    border-radius: inherit;
    background: rgb(15 31 92 / .92);
    box-shadow: 0 10px 30px rgb(10 21 64 / .18);
    transition: background-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)) {
    .navbar-container::before {
        background: rgb(15 31 92 / .82);
        -webkit-backdrop-filter: saturate(160%) blur(14px);
        backdrop-filter: saturate(160%) blur(14px);
    }
}

/* Estado ao rolar (classe aplicada pelo script.js) */
.navbar-scroll {
    padding-top: 10px;
}

.navbar-scroll .navbar-container {
    height: 62px;
}

.navbar-scroll .navbar-container::before {
    background: rgb(10 21 64 / .94);
    box-shadow: 0 12px 32px rgb(10 21 64 / .28);
}

/* =========================================
   LOGO
========================================= */

.logo {
    flex-shrink: 0;
    display: grid;
    place-items: center;
    border-radius: 50%;
}

.logo-img {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgb(255 255 255 / .9), 0 4px 12px rgb(0 0 0 / .25);
    transition: width var(--t) var(--ease), height var(--t) var(--ease), transform var(--t) var(--ease);
}

.logo:hover .logo-img {
    transform: rotate(-6deg);
}

.navbar-scroll .logo-img {
    width: 44px;
    height: 44px;
}

/* =========================================
   PAINEL (desktop: inline)
========================================= */

.nav-panel {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-panel-header,
.mobile-menu-button {
    display: none;
}

.menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.menu > li {
    position: relative;
}

.nav-link,
.dropdown-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 14px;
    border-radius: var(--radius-pill);
    color: rgb(255 255 255 / .86);
    font-size: .93rem;
    font-weight: 500;
    white-space: nowrap;
    transition: color var(--t-fast), background-color var(--t-fast);
}

/* Sublinhado animado */
.nav-link::after,
.dropdown-toggle::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 6px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--t) var(--ease);
}

.nav-link:hover,
.dropdown-toggle:hover,
.dropdown.active .dropdown-toggle {
    color: #fff;
}

.nav-link:hover::after,
.dropdown-toggle:hover::after {
    transform: scaleX(1);
}

/* Página ativa */
.nav-link[aria-current="page"],
.dropdown-toggle.is-current {
    color: #fff;
}

.nav-link[aria-current="page"]::after,
.dropdown-toggle.is-current::after {
    transform: scaleX(1);
}

.dropdown-toggle i {
    font-size: .7rem;
    transition: transform var(--t) var(--ease);
}

/* =========================================
   DROPDOWN (desktop)
========================================= */

.dropdown-menu {
    position: absolute;
    top: calc(100% + 14px);
    left: 50%;
    width: 300px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 8px);
    transition:
        opacity var(--t-fast) var(--ease),
        transform var(--t) var(--ease),
        visibility 0s linear var(--t);
}

/* Ponte invisível para o mouse não "cair" entre o botão e o menu */
.dropdown-menu::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 100%;
    height: 16px;
}

@media (min-width: 1100px) {
    .dropdown:hover .dropdown-menu,
    .dropdown:focus-within .dropdown-menu,
    .dropdown.active .dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: translate(-50%, 0);
        transition-delay: 0s;
    }

    .dropdown:hover .dropdown-toggle i,
    .dropdown.active .dropdown-toggle i {
        transform: rotate(180deg);
    }
}

.dropdown-link {
    --course: var(--primary);

    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 48px;
    padding: 6px 10px;
    border-radius: 12px;
    color: var(--text);
    font-size: .93rem;
    font-weight: 500;
    transition: background-color var(--t-fast), color var(--t-fast);
}

.curso-cor--ingles  { --course: var(--c-ingles); }
.curso-cor--info    { --course: var(--c-info); }
.curso-cor--enem    { --course: var(--c-enem); }
.curso-cor--reforco { --course: var(--c-reforco); }
.curso-cor--embraer { --course: var(--c-embraer); }

.dropdown-icon {
    flex-shrink: 0;
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--primary-light);
    background: color-mix(in srgb, var(--course) 11%, white);
    color: var(--course);
    font-size: 15px;
    transition: background-color var(--t-fast), color var(--t-fast);
}

.dropdown-link:hover,
.dropdown-link[aria-current="page"] {
    background: var(--background);
    color: var(--dark);
}

.dropdown-link:hover .dropdown-icon {
    background: var(--course);
    color: #fff;
}

.dropdown-all {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 46px;
    margin-top: 6px;
    padding: 0 12px;
    border-top: 1px solid var(--border);
    border-radius: 0 0 10px 10px;
    color: var(--primary);
    font-size: .9rem;
    font-weight: 600;
}

.dropdown-all i {
    transition: transform var(--t-fast) var(--ease);
}

.dropdown-all:hover i {
    transform: translateX(4px);
}

/* =========================================
   AÇÕES (Portal e Matrícula)
========================================= */

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.portal-btn,
.btn-matricula {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 20px;
    border-radius: var(--radius-pill);
    font-size: .92rem;
    font-weight: 600;
    white-space: nowrap;
    transition:
        background-color var(--t-fast) var(--ease),
        color var(--t-fast) var(--ease),
        border-color var(--t-fast) var(--ease),
        transform var(--t-fast) var(--ease),
        box-shadow var(--t) var(--ease);
}

.portal-btn {
    border: 1.5px solid rgb(255 255 255 / .45);
    color: #fff;
}

.portal-btn:hover {
    border-color: #fff;
    background: rgb(255 255 255 / .12);
}

.btn-matricula {
    background: var(--accent);
    color: var(--navy);
    box-shadow: 0 6px 18px rgb(245 184 0 / .3);
}

.btn-matricula:hover {
    background: #ffc629;
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgb(245 184 0 / .4);
}

.btn-matricula:active,
.portal-btn:active {
    transform: translateY(0);
}

/* Ajuste fino para telas médias do desktop */
@media (min-width: 1100px) and (max-width: 1240px) {
    .nav-link,
    .dropdown-toggle {
        padding: 0 10px;
        font-size: .88rem;
    }

    .portal-btn,
    .btn-matricula {
        padding: 0 16px;
    }
}

/* =========================================
   MOBILE — gaveta lateral
========================================= */

@media (max-width: 1099px) {

    .navbar {
        padding: 10px 12px 0;
    }

    .navbar-scroll {
        padding-top: 6px;
    }

    .navbar-container {
        justify-content: space-between;
        height: 64px;
        padding: 0 8px 0 7px;
    }

    .navbar-scroll .navbar-container {
        height: 58px;
    }

    .logo-img,
    .navbar-scroll .logo-img {
        width: 44px;
        height: 44px;
    }

    .mobile-menu-button {
        display: grid;
        place-items: center;
        width: 48px;
        height: 48px;
        border-radius: 50%;
        color: #fff;
        font-size: 20px;
        transition: background-color var(--t-fast);
    }

    .mobile-menu-button:hover {
        background: rgb(255 255 255 / .12);
    }

    .nav-panel {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        z-index: 1001;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        width: min(88vw, 380px);
        height: 100vh;
        height: 100dvh;
        padding: 0 0 env(safe-area-inset-bottom);
        background: var(--surface);
        box-shadow: -20px 0 60px rgb(10 21 64 / .25);
        overflow-y: auto;
        overscroll-behavior: contain;
        visibility: hidden;
        transform: translateX(100%);
        transition:
            transform .38s var(--ease),
            visibility 0s linear .38s;
    }

    body.nav-open .nav-panel {
        visibility: visible;
        transform: none;
        transition-delay: 0s;
    }

    .nav-panel-header {
        position: sticky;
        top: 0;
        z-index: 1;
        display: flex;
        align-items: center;
        gap: 12px;
        min-height: 72px;
        padding: 12px 12px 12px 20px;
        border-bottom: 1px solid var(--border);
        background: var(--surface);
    }

    .nav-panel-header img {
        border-radius: 50%;
    }

    .nav-panel-header span {
        flex: 1;
        color: var(--dark);
        font-weight: 600;
    }

    .nav-close {
        display: grid;
        place-items: center;
        width: 48px;
        height: 48px;
        border-radius: 50%;
        color: var(--dark);
        font-size: 22px;
        transition: background-color var(--t-fast);
    }

    .nav-close:hover {
        background: var(--background);
    }

    .menu {
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: 12px;
    }

    .nav-link,
    .dropdown-toggle {
        width: 100%;
        justify-content: space-between;
        min-height: 54px;
        padding: 0 14px;
        border-radius: 12px;
        color: var(--text);
        font-size: 1.02rem;
    }

    .nav-link::after,
    .dropdown-toggle::after {
        display: none;
    }

    .nav-link:hover,
    .dropdown-toggle:hover,
    .dropdown.active .dropdown-toggle {
        color: var(--dark);
        background: var(--background);
    }

    .nav-link[aria-current="page"],
    .dropdown-toggle.is-current {
        color: var(--primary);
        background: var(--primary-light);
    }

    .dropdown.active .dropdown-toggle i {
        transform: rotate(180deg);
    }

    /* Acordeão */
    .dropdown-menu {
        position: static;
        width: auto;
        padding: 0 0 0 8px;
        border: 0;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: grid;
        grid-template-rows: 0fr;
        transition: grid-template-rows var(--t) var(--ease);
    }

    .dropdown-inner {
        overflow: hidden;
        min-height: 0;
    }

    .dropdown-menu::before {
        display: none;
    }

    .dropdown.active .dropdown-menu {
        grid-template-rows: 1fr;
    }

    /* Fechado: some da ordem do teclado */
    .dropdown:not(.active) .dropdown-menu {
        visibility: hidden;
        transition: grid-template-rows var(--t) var(--ease), visibility 0s linear var(--t);
    }

    .dropdown-all {
        border-top: 0;
        margin-top: 0;
        padding-left: 14px;
    }

    .nav-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        margin-top: auto;
        padding: 16px 20px 24px;
        border-top: 1px solid var(--border);
    }

    .portal-btn,
    .btn-matricula {
        min-height: 52px;
        font-size: 1rem;
    }

    .portal-btn {
        border-color: var(--primary);
        color: var(--primary);
    }

    .portal-btn:hover {
        background: var(--primary-light);
        border-color: var(--primary);
    }

    .nav-overlay {
        position: fixed;
        inset: 0;
        z-index: 999;
        background: rgb(10 21 64 / .5);
        opacity: 0;
        transition: opacity .38s var(--ease);
    }

    body.nav-open .nav-overlay {
        opacity: 1;
    }
}

@media (min-width: 1100px) {
    .nav-overlay {
        display: none !important;
    }
}