:root {
  --petroleo: #043d42;
  --petroleo-claro: #075d5a;
  --amarelo: #feb501;
  --fundo: #f4f7f6;
  --texto: #173235;
  --muted: #5a6c6d;
  --borda: #dbe7e5;
  --sombra: 0 16px 40px rgba(4, 61, 66, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; color: var(--texto); background: var(--fundo); font: 400 16px/1.55 Inter, Arial, sans-serif; }
a { color: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 20; padding: 10px 14px; background: var(--amarelo); color: #172426; font-weight: 700; }
.skip-link:focus { left: 14px; }
.main-header { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--borda); background: rgba(255,255,255,.97); backdrop-filter: blur(12px); }
.header-content { min-height: 86px; display: flex; align-items: center; gap: 24px; }
.logo img { display: block; width: 146px; height: auto; }
.menu-toggle { display: none; margin-left: auto; padding: 8px; border: 0; background: transparent; color: var(--petroleo); font: inherit; font-size: 25px; cursor: pointer; }
.nav-menu { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.nav-menu > ul { display: flex; align-items: center; gap: 22px; margin: 0; padding: 0; list-style: none; }
.nav-menu a, .nav-trigger { color: var(--petroleo); background: transparent; border: 0; padding: 7px 0; text-decoration: none; font: 600 14px/1.2 Inter, Arial, sans-serif; cursor: pointer; }
.nav-menu a:hover, .nav-menu a[aria-current="page"], .nav-trigger:hover { color: var(--petroleo-claro); }
.nav-dropdown { position: relative; }
.nav-trigger::after { content: "⌄"; margin-left: 5px; }
.submenu { position: absolute; top: calc(100% + 12px); left: -18px; width: 278px; margin: 0; padding: 10px; list-style: none; border: 1px solid var(--borda); border-radius: 12px; background: #fff; box-shadow: var(--sombra); display: none; }
.nav-dropdown.open .submenu { display: block; }
.submenu a { display: block; padding: 10px; border-radius: 8px; }
.submenu a:hover { background: #edf7f5; }
.nav-cta { display: inline-block; padding: 11px 16px !important; border-radius: 8px; background: var(--amarelo); color: #172426 !important; }

.hero { min-height: 480px; display: grid; place-items: center; color: #fff; background: linear-gradient(90deg, rgba(3,48,50,.96), rgba(4,61,66,.76)), url("../images/bg_hero.webp") center/cover; }
.hero--internal { min-height: 360px; }
.hero-content { max-width: 800px; padding: 76px 0; }
.eyebrow { margin: 0 0 14px; color: var(--amarelo); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.hero h1 { max-width: 820px; margin: 0; font-size: clamp(36px, 5vw, 62px); line-height: 1.05; letter-spacing: -.035em; }
.hero p:not(.eyebrow) { max-width: 720px; margin: 22px 0 0; font-size: clamp(17px, 2vw, 21px); line-height: 1.45; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 12px 18px; border: 1px solid transparent; border-radius: 8px; font: 700 15px/1.2 Inter, Arial, sans-serif; text-decoration: none; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0,0,0,.16); }
.btn-primary { background: var(--amarelo); color: #172426; }
.btn-outline { border-color: rgba(255,255,255,.8); color: #fff; }

.section { padding: 76px 0; }
.section--white { background: #fff; }
.section--dark { color: #fff; background: var(--petroleo); }
.section-heading { max-width: 740px; margin-bottom: 34px; }
.section-heading h2 { margin: 0; font-size: clamp(28px, 4vw, 42px); line-height: 1.12; letter-spacing: -.025em; }
.section-heading p { margin: 14px 0 0; color: var(--muted); font-size: 18px; }
.section--dark .section-heading p { color: #dae9e7; }

.solutions-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.solution-card { display: flex; flex-direction: column; min-height: 260px; padding: 24px; border: 1px solid var(--borda); border-radius: 14px; background: #fff; box-shadow: 0 4px 16px rgba(4,61,66,.05); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.solution-card:hover { transform: translateY(-5px); box-shadow: var(--sombra); }
.solution-number { color: var(--amarelo); font-weight: 800; }
.solution-card h3 { margin: 14px 0 10px; color: var(--petroleo); font-size: 20px; line-height: 1.16; }
.solution-card p { margin: 0; color: var(--muted); font-size: 14px; }
.solution-card span:last-child { margin-top: auto; padding-top: 18px; color: var(--petroleo-claro); font-weight: 700; font-size: 14px; }

.two-columns { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; align-items: start; }
.two-columns h2 { margin-top: 0; font-size: clamp(28px, 3vw, 40px); line-height: 1.14; }
.two-columns p { color: var(--muted); }
.proof-list { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.proof-list li { padding: 18px 18px 18px 22px; border-left: 4px solid var(--amarelo); background: #edf7f5; }
.proof-list strong { display: block; margin-bottom: 3px; }
.notice { padding: 24px; border-radius: 12px; background: #ecf5f3; color: var(--texto); }
.notice strong { color: var(--petroleo); }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.service-item { padding: 24px; border: 1px solid var(--borda); border-radius: 12px; background: #fff; }
.service-item h3 { margin: 0 0 9px; color: var(--petroleo); font-size: 20px; line-height: 1.2; }
.service-item p { margin: 0; color: var(--muted); }
.service-item--dark { border-color: rgba(255,255,255,.2); background: rgba(255,255,255,.06); }
.service-item--dark h3, .service-item--dark p { color: #fff; }
.service-item--dark p { color: #d7e8e6; }

.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.process-step { padding: 20px; border-radius: 12px; background: #fff; border: 1px solid var(--borda); }
.process-step span { color: var(--petroleo-claro); font-weight: 800; }
.process-step h3 { margin: 11px 0 8px; font-size: 19px; }
.process-step p { margin: 0; color: var(--muted); font-size: 15px; }

.contact { background: #e5f1ef; }
.contact-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 46px; align-items: start; }
.contact h2 { margin: 0; font-size: clamp(30px, 4vw, 44px); line-height: 1.1; }
.contact p { color: var(--muted); }
.contact-form { display: grid; gap: 14px; padding: 28px; border-radius: 14px; background: #fff; box-shadow: var(--sombra); }
.contact-form label { margin-bottom: -8px; color: var(--petroleo); font-weight: 700; font-size: 14px; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; padding: 12px; border: 1px solid #b9cfcb; border-radius: 7px; color: var(--texto); background: #fff; font: inherit; }
.contact-form textarea { min-height: 104px; resize: vertical; }
.contact-form .form-hint { margin: -4px 0 0; color: var(--muted); font-size: 13px; }
.form-success { display: none; padding: 28px; border-radius: 14px; background: #fff; box-shadow: var(--sombra); }
.form-success h3 { margin-top: 0; }

.footer { color: #dce9e7; background: #062f33; }
.footer-content { display: flex; justify-content: space-between; gap: 24px; padding: 34px 0; }
.footer h2, .footer p { margin: 0; }
.footer h2 { color: #fff; font-size: 21px; }
.footer p { margin-top: 8px; font-size: 14px; }
.footer a { color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 18px; align-content: center; }
.footer-links a { color: #dce9e7; font-size: 14px; text-decoration: none; }

@media (max-width: 1060px) { .solutions-grid { grid-template-columns: repeat(3, 1fr); } .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 760px) {
  .container { width: min(100% - 32px, 600px); }
  .header-content { min-height: 70px; }
  .logo img { width: 120px; }
  .menu-toggle { display: block; }
  .nav-menu { display: none; position: absolute; top: 70px; left: 0; right: 0; padding: 16px; border-bottom: 1px solid var(--borda); background: #fff; box-shadow: var(--sombra); }
  .nav-menu.active { display: block; }
  .nav-menu > ul { display: grid; gap: 2px; }
  .nav-menu a, .nav-trigger { display: block; width: 100%; padding: 12px; text-align: left; }
  .nav-dropdown { position: static; }
  .submenu { position: static; width: auto; margin: 0 12px; box-shadow: none; border: 0; background: #edf7f5; }
  .nav-cta { display: inline-block !important; margin-top: 8px; }
  .hero { min-height: 440px; }
  .hero-content { padding: 60px 0; }
  .section { padding: 56px 0; }
  .solutions-grid, .service-grid, .process, .two-columns, .contact-layout { grid-template-columns: 1fr; }
  .solution-card { min-height: 210px; }
  .footer-content { display: grid; }
}