/* ============================================================
   nav.css — Header & Navegação — Devsi
   ============================================================
   • Compensação de header fixo via padding-top no body
   • Links brancos no fundo escuro
   • Botões proporcionais e alinhados
   • Logo no tamanho correto
   • Menu mobile drawer com overlay e animação
   • Hambúrguer animado → X
   • Link ativo por página
   ============================================================ */


/* ── COMPENSA HEADER FIXO ───────────────────────────────────
   Impede que o conteúdo fique atrás do nav.
   Valor = altura do header em cada breakpoint               */

body {
    padding-top: 5rem;
}

@media (max-width: 1080px) {
    body {
        padding-top: 6rem;
    }
}


/* ══════════════════════════════════════════════════════════
   HEADER
══════════════════════════════════════════════════════════ */

#site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 7.2rem;
    background: #0f202b;
    border-bottom: 1px solid rgba(199, 217, 208, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: height 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}


/* Header ao rolar */

#site-header.scrolled {
    height: 6rem;
    background: rgba(13, 28, 38, 0.97);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    border-bottom-color: rgba(199, 217, 208, 0.14);
}


/* ── CONTAINER INTERNO ──────────────────────────────────── */

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 124.6rem;
    margin: 0 auto;
    padding: 0 3.2rem;
    gap: 3.2rem;
}


/* ══════════════════════════════════════════════════════════
   LOGO
══════════════════════════════════════════════════════════ */

.nav-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    text-decoration: none;
}

.nav-logo img {
    height: 6.2rem;
    width: auto;
    display: block;
    object-fit: contain;
}


/* ══════════════════════════════════════════════════════════
   MENU DESKTOP
══════════════════════════════════════════════════════════ */

.nav-menu {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 3.6rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li a {
    font: 400 1.5rem/1 Satoshi, sans-serif;
    color: #c7d9d0;
    text-decoration: none;
    position: relative;
    white-space: nowrap;
    transition: color 0.2s ease;
}


/* Sublinhado animado */

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #d2df48;
    border-radius: 2px;
    transition: width 0.22s ease;
}

.nav-links li a:hover {
    color: #ffffff;
}

.nav-links li a:hover::after {
    width: 100%;
}

.nav-links li a.active {
    color: #d2df48;
    font-weight: 500;
}

.nav-links li a.active::after {
    width: 100%;
}


/* ══════════════════════════════════════════════════════════
   BOTÕES DE AÇÃO — desktop
══════════════════════════════════════════════════════════ */

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}


/* Base */

.nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    height: 4.2rem;
    padding: 0 2rem;
    border-radius: 99px;
    font: 500 1.4rem/1 Satoshi, sans-serif;
    white-space: nowrap;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-btn img {
    width: 1.8rem;
    height: 1.8rem;
    flex-shrink: 0;
    display: block;
}


/* Outline — "Sou aluno" */

.nav-btn--outline {
    background: transparent;
    color: #c7d9d0;
    border: 1.5px solid rgba(199, 217, 208, 0.3);
}

.nav-btn--outline img {
    filter: brightness(0) invert(0.8);
}

.nav-btn--outline:hover {
    color: #ffffff;
    border-color: rgba(199, 217, 208, 0.6);
    background: rgba(199, 217, 208, 0.06);
}


/* Primary — "Sou Empresa" */

.nav-btn--primary {
    background: #d2df48;
    color: #0f202b;
    font-weight: 600;
}

.nav-btn--primary img {
    filter: brightness(0);
}

.nav-btn--primary:hover {
    background: #dfe94f;
    box-shadow: 0 4px 16px rgba(210, 223, 72, 0.3);
}


/* Full width — drawer mobile */

.nav-btn--full {
    width: 100%;
}


/* ══════════════════════════════════════════════════════════
   HAMBÚRGUER — 3 linhas → X
══════════════════════════════════════════════════════════ */

.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.55rem;
    width: 4rem;
    height: 4rem;
    padding: 0.8rem;
    background: transparent;
    border: 1.5px solid rgba(199, 217, 208, 0.2);
    border-radius: 0.8rem;
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.nav-hamburger:hover {
    border-color: rgba(199, 217, 208, 0.45);
    background: rgba(199, 217, 208, 0.05);
}

.nav-hamburger span {
    display: block;
    width: 1.8rem;
    height: 1.5px;
    background: #c7d9d0;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.2s ease, width 0.25s ease;
    transform-origin: center;
}


/* Estado aberto → X */

.nav-hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
    opacity: 0;
    width: 0;
}

.nav-hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}


/* ══════════════════════════════════════════════════════════
   OVERLAY
══════════════════════════════════════════════════════════ */

.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(8, 18, 25, 0.7);
    backdrop-filter: blur(3px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.nav-overlay.open {
    opacity: 1;
    pointer-events: all;
}


/* ══════════════════════════════════════════════════════════
   DRAWER MOBILE
══════════════════════════════════════════════════════════ */

.nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 30rem;
    max-width: 85vw;
    background: #0f202b;
    border-right: 1px solid rgba(199, 217, 208, 0.1);
    box-shadow: 6px 0 40px rgba(0, 0, 0, 0.4);
    z-index: 999;
    display: flex;
    flex-direction: column;
    padding: 0 2.4rem 3.2rem;
    transform: translateX(-100%);
    transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.nav-drawer.open {
    transform: translateX(0);
}


/* Cabeçalho do drawer */

.nav-drawer__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 6rem;
    flex-shrink: 0;
    border-bottom: 1px solid rgba(199, 217, 208, 0.08);
    margin-bottom: 1.6rem;
}


/* Botão fechar */

.nav-drawer__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.6rem;
    height: 3.6rem;
    background: transparent;
    border: 1.5px solid rgba(199, 217, 208, 0.2);
    border-radius: 0.8rem;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.nav-drawer__close:hover {
    border-color: rgba(199, 217, 208, 0.45);
    background: rgba(199, 217, 208, 0.05);
}

.nav-drawer__close svg {
    width: 1.6rem;
    height: 1.6rem;
    stroke: #c7d9d0;
}


/* Links do drawer */

.nav-drawer__links {
    list-style: none;
    margin: 0 0 auto;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.nav-drawer__links li {
    border-bottom: 1px solid rgba(199, 217, 208, 0.07);
}

.nav-drawer__links li a {
    display: flex;
    align-items: center;
    font: 400 1.7rem/1 Satoshi, sans-serif;
    color: #c7d9d0;
    padding: 1.8rem 0;
    text-decoration: none;
    transition: color 0.2s ease, padding-left 0.2s ease;
}

.nav-drawer__links li a:hover,
.nav-drawer__links li a.active {
    color: #d2df48;
    padding-left: 0.8rem;
}


/* Ações do drawer */

.nav-drawer__actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-top: 2.8rem;
    border-top: 1px solid rgba(199, 217, 208, 0.08);
    margin-top: 2.4rem;
}


/* ══════════════════════════════════════════════════════════
   RESPONSIVO
══════════════════════════════════════════════════════════ */

@media (max-width: 1200px) {
    .nav-links {
        gap: 2.8rem;
    }
    .nav-container {
        gap: 2.4rem;
        padding: 0 2.4rem;
    }
}

@media (max-width: 1080px) {
    #site-header {
        height: 6rem;
    }
    .nav-menu {
        display: none;
    }
    .nav-actions {
        display: none;
    }
    .nav-hamburger {
        display: flex;
    }
    .nav-container {
        padding: 0 1.6rem;
        gap: 0;
        justify-content: space-between;
    }
}

@media (max-width: 400px) {
    .nav-drawer {
        width: 100%;
        max-width: 100%;
    }
    .nav-logo img {
        height: 2.6rem;
    }
}