:root {
    --petroleo: #164B49;
    --petroleo-escuro: #0E3534;
    --petroleo-claro: #DDE9E7;
    --texto: #1F2A2A;
    --texto-suave: #667271;
    --fundo: #F7F8F6;
    --fundo-2: #EEF2F0;
    --branco: #FFFFFF;
    --borda: #DDE4E1;
    --sombra: 0 10px 28px rgba(14, 53, 52, .065);
    --raio: 16px;
    --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--texto);
    background: var(--branco);
    line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
.container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid var(--borda);
    backdrop-filter: blur(12px);
}
.header-inner {
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}
.brand {
    text-decoration: none;
    color: var(--petroleo-escuro);
    line-height: 1;
}
.brand span { display: block; font-size: 22px; font-weight: 800; letter-spacing: -.03em; }
.brand small { display: block; margin-top: 6px; font-size: 8px; letter-spacing: .22em; color: var(--texto-suave); }
.main-nav { display: flex; align-items: center; gap: 22px; font-size: 14px; font-weight: 600; }
.main-nav a { text-decoration: none; color: #42504F; }
.main-nav a:hover { color: var(--petroleo); }
.nav-cta { padding: 10px 16px; border-radius: 999px; background: var(--petroleo); color: white !important; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 17px;
    border-radius: 9px;
    text-decoration: none;
    font-weight: 700;
    border: 1px solid transparent;
    transition: .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--petroleo); color: white; }
.btn-secondary { background: white; color: var(--petroleo); border-color: var(--borda); }
.btn-link { padding: 0; min-height: auto; background: none; color: var(--petroleo); }

.eyebrow {
    margin: 0 0 10px;
    color: var(--petroleo);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .15em;
    text-transform: uppercase;
}
.section { padding: 62px 0; }
.section-soft { background: var(--fundo); }
.section-muted { background: var(--fundo-2); }
.section-title { margin: 0; font-size: clamp(29px, 3.5vw, 41px); line-height: 1.14; letter-spacing: -.035em; }
.section-intro { max-width: 680px; margin: 10px 0 0; color: var(--texto-suave); }

.site-footer { padding: 48px 0 20px; background: var(--petroleo-escuro); color: #CFDCDA; }
.footer-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr 1fr; gap: 34px; }
.footer-grid strong { display: block; margin-bottom: 10px; color: white; }
.footer-grid p { max-width: 300px; margin: 0; color: #B7C8C5; }
.footer-grid a { display: block; margin: 7px 0; text-decoration: none; color: #C5D4D2; font-size: 14px; }
.footer-grid a:hover { color: white; }
.footer-brand { font-size: 18px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 32px; padding-top: 15px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12px; }

@media (max-width: 900px) {
    .main-nav > a:not(.nav-cta) { display: none; }
    .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 560px) {
    .container { width: min(100% - 28px, var(--container)); }
    .header-inner { min-height: 64px; }
    .brand span { font-size: 20px; }
    .nav-cta { padding: 9px 13px; font-size: 13px; }
    .section { padding: 50px 0; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
}