/* VizStack shared components: header (nav) + footer.
   Injetado por components.js como PRIMEIRA folha de estilo (camada base),
   entao o CSS por pagina e o theme-language.css (glass) sobrescrevem por cima.
   Fonte unica da navbar base — paginas nao precisam mais duplicar. */

/* ============================================================
   Navbar (#navbar / .nav-* / .btn-*)
   ============================================================ */

#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 10px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background .4s, padding .4s, border-color .4s;
    background: rgba(8, 8, 10, .9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, .05);
}

#navbar.scrolled {
    background: rgba(8, 8, 10, .92);
    backdrop-filter: blur(16px);
    padding: 4px 48px;
    border-color: var(--border, rgba(255, 255, 255, .07));
}

.nav-logo {
    font-family: var(--font-serif, 'Instrument Serif', serif);
    font-size: 1.6rem;
    letter-spacing: -.02em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-logo .dot { color: var(--accent, #1864ff); }

.nav-logo-text {
    color: var(--white, #f4f4f5);
    /* Wordmark: MuseoModerno (ver fonts.css). Fallback em sans geometrica —
       cair no serif antigo daria uma marca visualmente diferente. */
    font-family: 'MuseoModerno', 'Trebuchet MS', system-ui, sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: .8125rem;
    font-weight: 500;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--dim, #71717a);
    transition: color .25s;
}

.nav-links a:hover { color: var(--white, #f4f4f5); }

.nav-ctas {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-ghost {
    font-size: .8125rem;
    font-weight: 500;
    padding: 8px 20px;
    border-radius: 100px;
    border: 1px solid var(--border, rgba(255, 255, 255, .07));
    color: var(--dim, #71717a);
    transition: all .25s;
}

.btn-ghost:hover {
    border-color: rgba(255, 255, 255, .2);
    color: var(--white, #f4f4f5);
}

.btn-primary {
    font-size: .8125rem;
    font-weight: 500;
    padding: 9px 22px;
    border-radius: 100px;
    background: var(--accent, #1864ff);
    color: #fff;
    transition: all .3s;
}

.btn-primary:hover {
    background: #3a7fff;
    box-shadow: 0 0 28px var(--accent-glow, rgba(24, 100, 255, .5));
}

.nav-drop-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    border-radius: 9px;
    font-size: .875rem;
    color: var(--dim, #71717a);
    transition: all .2s;
    text-decoration: none;
    cursor: pointer;
}

.nav-drop-item:hover {
    background: rgba(255, 255, 255, .04);
    color: var(--white, #f4f4f5);
}

/* ============================================================
   Footer (.footer-*)
   ============================================================ */

footer {
    background: var(--bg2, #0d0d10);
    border-top: 1px solid var(--border, rgba(255,255,255,.07));
    padding: 80px 48px 40px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 64px;
}

.footer-brand-name {
    /* Mesma wordmark do header (ver .nav-logo-text). */
    font-family: 'MuseoModerno', 'Trebuchet MS', system-ui, sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
    font-size: 1.75rem;
    margin-bottom: 12px;
}

.footer-brand-desc {
    font-size: .875rem;
    color: var(--dim, #71717a);
    line-height: 1.65;
    max-width: 260px;
}

.footer-col-title {
    font-family: var(--font-mono, 'Space Mono', monospace);
    font-size: .65rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--dim, #71717a);
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: .875rem;
    color: var(--dim, #71717a);
    text-decoration: none;
    transition: color .25s;
}

.footer-links a:hover {
    color: var(--white, #f4f4f5);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border, rgba(255,255,255,.07));
    padding-top: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copy {
    font-size: .8rem;
    color: var(--dimmer, #3f3f46);
    font-family: var(--font-mono, 'Space Mono', monospace);
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border, rgba(255,255,255,.07));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dim, #71717a);
    transition: all .25s;
}

.footer-social-icon:hover {
    border-color: rgba(255, 255, 255, .2);
    color: var(--white, #f4f4f5);
}

@media (max-width: 768px) {
    footer { padding: 56px 24px 32px; }
    .footer-top { grid-template-columns: 1fr; gap: 32px; }
}