/* ============================================================
   BrazFlow — folha de estilo principal
   Paleta da marca: navy #16304A + cobre #D89150
   ============================================================ */

:root {
  /* Cores da marca */
  --navy-900: #10263B;
  --navy-800: #16304A;   /* primária */
  --navy-700: #1E4062;
  --navy-600: #2A5480;
  --copper:   #D89150;   /* acento */
  --copper-dk:#B9743A;
  --copper-lt:#E8A96B;
  --cyan:     #6FBEDB;
  --cyan-lt:  #D8F0F0;

  /* Neutros */
  --white: #ffffff;
  --gray-50: #F6F8FA;
  --gray-100:#EEF1F4;
  --gray-200:#DDE3E9;
  --gray-500:#6B7885;
  --ink:     #16304A;
  --body:    #33414E;

  --maxw: 1160px;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(16,38,59,.10);
  --shadow-sm: 0 4px 14px rgba(16,38,59,.08);
  --ease: cubic-bezier(.4,0,.2,1);

  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

/* ---------- Reset leve ---------- */
* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;  /* impede o iOS de "inflar" a fonte ao girar a tela */
  text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: var(--font);
  color: var(--body);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;              /* trava rolagem horizontal acidental no celular */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--navy-700); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--copper-dk); }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.2; margin: 0 0 .5em; font-weight: 700; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--navy-800); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-weight: 600; font-size: .98rem; line-height: 1;
  padding: 14px 26px; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: all .22s var(--ease); white-space: nowrap;
}
.btn--sm { padding: 10px 18px; font-size: .9rem; }
.btn--accent { background: var(--copper); color: #23150a; border-color: var(--copper); }
.btn--accent:hover { background: var(--copper-dk); border-color: var(--copper-dk); color: #fff; transform: translateY(-2px); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.55); }
.btn--ghost:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }
.btn--light { background: #fff; color: var(--navy-800); border-color: #fff; }
.btn--light:hover { background: var(--cyan-lt); color: var(--navy-800); transform: translateY(-2px); }

/* ---------- Topbar ---------- */
.topbar { background: var(--navy-900); color: #cdd7e0; font-size: .82rem; }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; min-height: 38px; gap: 16px; }
.topbar__tag { letter-spacing: .04em; text-transform: uppercase; font-size: .72rem; color: #9fb0c0; }
.topbar__links { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.topbar__links a { color: #cdd7e0; }
.topbar__links a:hover { color: var(--copper-lt); }
.topbar__sep { color: #3c536b; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow .25s var(--ease);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 20px; }

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__logo { height: 46px; width: auto; display: block; }
.brand--footer .brand__logo { height: 42px; }
.brand__mark { flex: none; }
.brand__text { font-size: 1.35rem; letter-spacing: .01em; color: var(--navy-800); font-weight: 500; }
.brand__text strong { font-weight: 800; }
.brand__flow { color: var(--copper-dk); font-weight: 800; }

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav ul { display: flex; align-items: center; gap: 22px; list-style: none; }
.main-nav a { color: var(--navy-800); font-weight: 600; font-size: .96rem; position: relative; padding: 6px 0; }
.main-nav ul a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0; background: var(--copper);
  transition: width .25s var(--ease);
}
.main-nav ul a:hover::after, .main-nav ul a.active::after { width: 100%; }
.main-nav__cta { margin-left: 4px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 12px 10px; min-height: 44px; min-width: 44px; align-items: center; justify-content: center; }
.nav-toggle span { width: 26px; height: 3px; background: var(--navy-800); border-radius: 2px; transition: .25s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; color: #fff; overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(216,145,80,.28), transparent 60%),
    radial-gradient(900px 600px at 0% 120%, rgba(111,190,219,.20), transparent 55%),
    linear-gradient(135deg, var(--navy-900), var(--navy-800) 55%, var(--navy-700));
}
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(115deg, rgba(255,255,255,.035) 0 2px, transparent 2px 26px);
  mask-image: linear-gradient(180deg, transparent, #000 40%);
}
.hero__inner { position: relative; z-index: 1; padding: 96px 24px 104px; max-width: 900px; }
.hero__eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 700; color: var(--copper-lt); margin-bottom: 18px; }
.hero__title { color: #fff; font-size: clamp(2.1rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -.01em; margin-bottom: 20px; }
.hero__title span { color: var(--copper-lt); }
.hero__lead { font-size: clamp(1.02rem, 2vw, 1.22rem); color: #d7e0e8; max-width: 640px; margin-bottom: 32px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Highlights ---------- */
.highlights { background: var(--white); margin-top: -46px; position: relative; z-index: 2; }
.highlights__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.highlight {
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 24px; display: flex; gap: 16px; align-items: flex-start;
}
.highlight__icon {
  flex: none; width: 46px; height: 46px; display: grid; place-items: center;
  background: var(--cyan-lt); color: var(--navy-800); border-radius: 12px; font-size: 1.3rem;
}
.highlight h3 { font-size: 1.05rem; margin-bottom: 4px; }
.highlight p { margin: 0; font-size: .92rem; color: var(--gray-500); }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section--alt { background: var(--gray-50); }
.section__head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section__eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 700; color: var(--copper-dk); margin-bottom: 12px; }
.section__title { font-size: clamp(1.7rem, 3.4vw, 2.4rem); }
.section__sub { color: var(--gray-500); font-size: 1.05rem; margin: 0; }

/* ---------- Cards de soluções ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--copper-lt); }
.card__icon {
  width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-600)); font-size: 1.5rem; margin-bottom: 18px;
}
.card h3 { font-size: 1.2rem; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.card p { margin: 0; color: var(--gray-500); font-size: .96rem; }
.card--featured { border-color: var(--copper); box-shadow: 0 12px 34px rgba(216,145,80,.16); }
.tag { font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; background: var(--copper); color: #23150a; padding: 3px 8px; border-radius: 999px; font-weight: 700; }

/* ---------- Stats ---------- */
.stats { background: linear-gradient(135deg, var(--navy-800), var(--navy-700)); color: #fff; padding: 60px 0; }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat__num { display: block; font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; color: var(--copper-lt); line-height: 1; }
.stat__label { display: block; margin-top: 8px; font-size: .9rem; color: #cdd7e0; }

/* ---------- Sobre ---------- */
.about { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; }
.about__panel { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about__text .section__eyebrow { margin-bottom: 12px; }
.about__list { list-style: none; margin-top: 8px; }
.about__list li { position: relative; padding-left: 28px; margin-bottom: 10px; color: var(--body); }
.about__list li::before { content: "✔"; position: absolute; left: 0; color: var(--copper-dk); font-weight: 700; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 28px 22px; }
.step__n { display: inline-block; font-size: 1.4rem; font-weight: 800; color: var(--copper); margin-bottom: 12px; }
.step h3 { font-size: 1.08rem; }
.step p { margin: 0; color: var(--gray-500); font-size: .93rem; }

/* ---------- Posts / Insights ---------- */
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.post { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.post:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.post__thumb { height: 160px; }
.post__thumb--1 { background: linear-gradient(135deg, var(--navy-700), var(--copper)); }
.post__thumb--2 { background: linear-gradient(135deg, var(--navy-800), var(--cyan)); }
.post__thumb--3 { background: linear-gradient(135deg, var(--copper-dk), var(--navy-600)); }
.post__body { padding: 22px 22px 26px; }
.post__cat { display: inline-block; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; color: var(--copper-dk); margin-bottom: 8px; }
.post h3 { font-size: 1.12rem; }
.post p { color: var(--gray-500); font-size: .93rem; }
.post__link { font-weight: 700; color: var(--navy-700); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--copper); color: #23150a; }
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 48px 24px; flex-wrap: wrap; }
.cta-band h2 { color: #23150a; margin-bottom: 4px; }
.cta-band p { margin: 0; color: #4a2f14; }

/* ---------- Contato ---------- */
.contact { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.contact__list { list-style: none; margin: 20px 0; }
.contact__list li { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.contact__social { display: flex; gap: 10px; margin-top: 18px; }
.contact__social a {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  background: var(--navy-800); color: #fff; font-size: .82rem; font-weight: 700; text-transform: lowercase;
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.contact__social a:hover { background: var(--copper-dk); color: #fff; transform: translateY(-2px); }

.contact__form { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius); box-shadow: var(--shadow-sm); padding: 30px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: .9rem; color: var(--navy-800); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--gray-200); border-radius: var(--radius-sm);
  font: inherit; color: var(--body); background: var(--gray-50); transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--copper); box-shadow: 0 0 0 3px rgba(216,145,80,.18); background: #fff; }
.field textarea { resize: vertical; }
.field__note { font-size: .78rem; color: var(--gray-500); margin: 12px 0 0; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: #b9c6d2; }
.site-footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; padding: 64px 24px 40px; }
.brand--footer .brand__text { color: #fff; }
.brand--footer .brand__flow { color: var(--copper-lt); }
.site-footer__brand p { margin-top: 14px; font-size: .92rem; color: #93a3b2; max-width: 280px; }
.site-footer__badge {
  display: inline-block; margin-top: 16px !important; padding: 7px 14px;
  background: rgba(216,145,80,.14); border: 1px solid rgba(216,145,80,.35);
  border-radius: 999px; color: #E8A96B !important; font-size: .8rem !important; font-weight: 600;
}
.site-footer__col h4 { color: #fff; font-size: .95rem; margin-bottom: 14px; }
.site-footer__col ul { list-style: none; }
.site-footer__col li { margin-bottom: 9px; }
.site-footer__col a { color: #b9c6d2; font-size: .92rem; }
.site-footer__col a:hover { color: var(--copper-lt); }

.site-footer__bottom { border-top: 1px solid rgba(255,255,255,.08); }
.site-footer__bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; flex-wrap: wrap; }
.site-footer__bottom p { margin: 0; font-size: .82rem; color: #8496a6; }
.site-footer__legal { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer__legal a { color: #8496a6; font-size: .82rem; }
.site-footer__legal a:hover { color: var(--copper-lt); }

/* ---------- Back to top ---------- */
.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  width: 48px; height: 48px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--copper); color: #23150a; font-size: 1.3rem; font-weight: 700;
  box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .25s var(--ease);
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--copper-dk); color: #fff; }

/* ---------- Cookie / LGPD ---------- */
.cookie {
  position: fixed; left: 22px; right: 22px; bottom: 22px; z-index: 95; max-width: 560px;
  margin: 0 auto; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 20px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.cookie p { margin: 0; font-size: .86rem; color: var(--body); flex: 1 1 280px; }

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
  .topbar { display: none; }   /* barra utilitária some no celular (links vão p/ contato/rodapé) */
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--gray-200); box-shadow: var(--shadow);
    padding: 8px 24px 20px; transform: translateY(-120%); transition: transform .3s var(--ease); max-height: calc(100vh - 68px); overflow: auto;
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav ul li { border-bottom: 1px solid var(--gray-100); }
  .main-nav ul a { display: block; padding: 14px 0; }
  .main-nav__cta { margin: 14px 0 0; }
  .highlights__grid, .cards, .steps, .posts, .stats__grid { grid-template-columns: 1fr 1fr; }
  .about, .contact { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .highlights__grid, .cards, .steps, .posts, .stats__grid, .site-footer__grid { grid-template-columns: 1fr; }
  .highlights { margin-top: 0; padding-top: 40px; }
  .section { padding: 60px 0; }
  .hero__inner { padding: 72px 24px; }
  .container { padding: 0 18px; }
  .contact__social a { width: 44px; height: 44px; }   /* alvos de toque maiores */
  .cta-band__inner { padding: 40px 20px; }
  .site-footer__bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- Acessibilidade / movimento ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
:focus-visible { outline: 3px solid var(--copper); outline-offset: 2px; border-radius: 4px; }