/* SignaProd · site institucional
   Cores do logo (verde-petróleo #10323B e ciano #3EFEF8) usadas com parcimônia sobre base clara. */

@font-face {
  font-family: "Newsreader";
  src: url("fonts/newsreader-latin-opsz-normal.woff2") format("woff2");
  font-weight: 200 800; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("fonts/newsreader-latin-opsz-italic.woff2") format("woff2");
  font-weight: 200 800; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "Figtree";
  src: url("fonts/figtree-latin-wght-normal.woff2") format("woff2");
  font-weight: 300 900; font-style: normal; font-display: swap;
}

:root {
  --abyss: #10323B;        /* verde-petróleo do logo: faixas escuras */
  --abyss-2: #143C46;
  --tide: #3EFEF8;         /* ciano do logo: só detalhes sobre fundo escuro */
  --tide-deep: #0B6B68;    /* ciano escurecido: links e detalhes sobre fundo claro */
  --paper: #F7F7F4;
  --paper-2: #EEF0EC;
  --ink: #0F2A31;
  --slate: #4B5D61;
  --muted: #7D8B8D;
  --line: #DFE3E0;
  --line-dark: rgba(255,255,255,.12);
  --on-dark: #EEF2F4;
  --on-dark-2: #A7B6C3;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Figtree", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --wrap: 1180px;
  --gutter: clamp(20px, 4vw, 40px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p { margin: 0 0 1em; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; margin: 0; }
:focus-visible { outline: 2px solid var(--tide-deep); outline-offset: 3px; border-radius: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--abyss); color: #fff; padding: 8px 14px; z-index: 50; }
.skip:focus { left: 8px; }

/* ---------- topo ---------- */
.top { position: sticky; top: 0; z-index: 20; background: rgba(247,247,244,.92); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.top.scrolled { border-bottom-color: var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; font-size: 17px; letter-spacing: -0.01em; }
.brand .mark { width: 28px; height: 28px; }
.nav { display: flex; align-items: center; gap: 30px; font-size: 15px; }
.nav a { text-decoration: none; color: var(--slate); transition: color .15s; }
.nav a:hover { color: var(--ink); }
.nav .login { color: var(--ink); }
.nav .btn, .nav .btn:hover { color: #fff; }
.menu-btn { display: none; }

.btn {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none; cursor: pointer;
  font: 500 15px/1 var(--sans); padding: 14px 22px; border-radius: 999px; border: 1px solid var(--abyss);
  background: var(--abyss); color: #fff; transition: background .15s, color .15s, border-color .15s;
}
.btn:hover { background: var(--abyss-2); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink); }
.btn.small { padding: 10px 16px; font-size: 14px; }
.btn.light { background: #fff; color: var(--abyss); border-color: #fff; }
.btn.light:hover { background: var(--paper-2); }
.btn.line-light { background: transparent; color: var(--on-dark); border-color: var(--line-dark); }
.btn.line-light:hover { border-color: var(--on-dark-2); }
.arrow { width: 14px; height: 14px; }

/* ---------- seções ---------- */
section { padding: clamp(72px, 10vw, 128px) 0; }
.eyebrow { font: 500 13px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--tide-deep); margin-bottom: 22px; display: flex; align-items: center; gap: 12px; }
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; }
.h2 { font-size: clamp(32px, 4.2vw, 48px); line-height: 1.12; max-width: 18ch; }
.lead { font-size: clamp(17px, 1.6vw, 19px); color: var(--slate); max-width: 58ch; }
.head { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; margin-bottom: 64px; }
.head .lead { margin: 0; }

/* hero */
.hero { padding-top: clamp(56px, 9vw, 112px); padding-bottom: clamp(64px, 8vw, 104px); }
.hero h1 { font-size: clamp(42px, 6.4vw, 80px); line-height: 1.03; letter-spacing: -0.02em; max-width: 15ch; }
.hero h1 em { font-style: italic; color: var(--tide-deep); }
.hero .lead { margin: 30px 0 40px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-foot { margin-top: clamp(56px, 8vw, 96px); padding-top: 28px; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.hero-foot div { font-size: 14px; color: var(--slate); }
.hero-foot strong { display: block; font: 400 21px/1.25 var(--serif); color: var(--ink); margin-bottom: 4px; }
.wave { width: 100%; height: 24px; color: var(--tide-deep); opacity: .55; }

/* serviços */
.services { border-top: 1px solid var(--line); }
.svc-list { border-top: 1px solid var(--line); }
.svc { display: grid; grid-template-columns: 80px 1.1fr 1.4fr; gap: 32px; padding: 40px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 90px; }
.svc .n { font: 400 15px/1.6 var(--serif); color: var(--muted); padding-top: 6px; }
.svc h3 { font-size: clamp(24px, 2.4vw, 30px); line-height: 1.2; }
.svc .tag { display: inline-block; margin-top: 14px; font-size: 13px; color: var(--tide-deep); }
.svc p { color: var(--slate); }
.svc ul { list-style: none; padding: 0; margin: 18px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; }
.svc li { font-size: 15px; padding-left: 18px; position: relative; color: var(--ink); }
.svc li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 1px; background: var(--tide-deep); }

/* plataforma */
.platform { background: var(--abyss); color: var(--on-dark); }
.platform .eyebrow { color: var(--tide); }
.platform .lead { color: var(--on-dark-2); }
.platform .h2 { color: #fff; }
.pf-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.pf-feats { list-style: none; padding: 0; margin: 40px 0 0; border-top: 1px solid var(--line-dark); }
.pf-feats li { padding: 18px 0; border-bottom: 1px solid var(--line-dark); display: grid; grid-template-columns: 200px 1fr; gap: 20px; font-size: 15px; color: var(--on-dark-2); }
.pf-feats b { font-weight: 500; color: var(--on-dark); }
.plans { border: 1px solid var(--line-dark); border-radius: 18px; overflow: hidden; }
.plan { display: grid; grid-template-columns: 1fr auto; gap: 6px 20px; padding: 26px 28px; border-bottom: 1px solid var(--line-dark); }
.plan:last-child { border-bottom: 0; }
.plan h3 { font-size: 24px; color: #fff; }
.plan .price { font: 400 22px/1.2 var(--serif); color: #fff; text-align: right; white-space: nowrap; }
.plan .price small { font: 400 13px var(--sans); color: var(--on-dark-2); }
.plan p { grid-column: 1 / -1; margin: 0; font-size: 14px; color: var(--on-dark-2); }
.plans-note { padding: 18px 28px; font-size: 13px; color: var(--on-dark-2); background: rgba(255,255,255,.03); }
.pf-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* setores */
.sectors-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.sector { padding: 32px 30px 36px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sector h3 { font-size: 23px; margin-bottom: 12px; }
.sector p { font-size: 15px; color: var(--slate); margin: 0; }

/* método */
.method { background: var(--paper-2); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: s; border-top: 1px solid var(--line); }
.step { padding: 32px 28px 8px 0; position: relative; }
.step + .step { padding-left: 28px; border-left: 1px solid var(--line); }
.step .n { font: italic 400 15px var(--serif); color: var(--tide-deep); display: block; margin-bottom: 18px; }
.step h3 { font-size: 22px; margin-bottom: 10px; }
.step p { font-size: 15px; color: var(--slate); }
.principles { margin-top: 72px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.principles h4 { margin: 0 0 8px; font: 600 15px/1.4 var(--sans); }
.principles p { font-size: 14.5px; color: var(--slate); margin: 0; }

/* dúvidas */
.faq-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 64px; }
details { border-bottom: 1px solid var(--line); }
details:first-child { border-top: 1px solid var(--line); }
summary { list-style: none; cursor: pointer; padding: 24px 40px 24px 0; position: relative; font: 400 21px/1.35 var(--serif); }
summary::-webkit-details-marker { display: none; }
summary::after { content: ""; position: absolute; right: 4px; top: 50%; width: 12px; height: 12px; border-right: 1.5px solid var(--slate); border-bottom: 1.5px solid var(--slate); transform: translateY(-75%) rotate(45deg); transition: transform .2s; }
details[open] summary::after { transform: translateY(-25%) rotate(-135deg); }
details p { color: var(--slate); max-width: 62ch; padding-bottom: 8px; }

/* contato */
.contact { background: var(--abyss); color: var(--on-dark); text-align: left; }
.contact .h2 { color: #fff; max-width: 20ch; }
.contact .lead { color: var(--on-dark-2); margin: 24px 0 40px; }
.contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 64px; align-items: end; }
.contact-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line-dark); }
.contact-list li { border-bottom: 1px solid var(--line-dark); }
.contact-list a { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 0; text-decoration: none; color: var(--on-dark); font-size: 16px; }
.contact-list a span { color: var(--on-dark-2); font-size: 14px; }
.contact-list a:hover { color: var(--tide); }

/* rodapé */
.foot { background: var(--abyss); color: var(--on-dark-2); font-size: 14px; padding: 0 0 40px; }
.foot .wrap { background: linear-gradient(var(--line-dark), var(--line-dark)) no-repeat center top / calc(100% - 2 * var(--gutter)) 1px; padding-top: 40px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.foot h4 { margin: 0 0 14px; font: 500 13px var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--on-dark); }
.foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.foot a { text-decoration: none; }
.foot a:hover { color: #fff; }
.foot .brand { color: #fff; margin-bottom: 14px; }
.foot .legal { grid-column: 1 / -1; padding-top: 24px; margin-top: 16px; border-top: 1px solid var(--line-dark); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; }

/* ---------- responsivo ---------- */
@media (max-width: 980px) {
  .head, .pf-grid, .faq-grid, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .head { margin-bottom: 40px; }
  .svc { grid-template-columns: 56px 1fr; }
  .svc > div:last-child { grid-column: 2; }
  .sectors-grid { grid-template-columns: 1fr 1fr; }
  .steps, .principles { grid-template-columns: 1fr 1fr; }
  .step:nth-child(3) { border-left: 0; padding-left: 0; }
  .hero-foot { grid-template-columns: 1fr 1fr; }
  .foot .wrap { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: var(--paper); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter) 20px; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 16px; justify-content: center; border-bottom: 1px solid var(--abyss); color: #fff; }
  .top.open .nav { display: flex; }
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 999px; background: transparent; cursor: pointer; }
  .menu-btn span, .menu-btn span::before, .menu-btn span::after { display: block; width: 16px; height: 1.5px; background: var(--ink); position: relative; content: ""; }
  .menu-btn span::before { position: absolute; top: -5px; }
  .menu-btn span::after { position: absolute; top: 5px; }
  .svc { grid-template-columns: 1fr; gap: 12px; padding: 32px 0; }
  .svc > div:last-child { grid-column: auto; }
  .svc ul { grid-template-columns: 1fr; }
  .sectors-grid, .steps, .principles, .hero-foot { grid-template-columns: 1fr; }
  .step, .step + .step { padding: 24px 0 4px; border-left: 0; border-top: 1px solid var(--line); }
  .steps { border-top: 0; }
  .pf-feats li { grid-template-columns: 1fr; gap: 4px; }
  .plan { padding: 22px 20px; }
  .plans-note { padding: 16px 20px; }
  .foot .wrap { grid-template-columns: 1fr; }
  .actions .btn { flex: 1 1 auto; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }