/* ===== Design tokens — paleta oficial SEGECON ===== */
:root {
  --azul-profundo: #05284E;   /* títulos e grandes superfícies */
  --azul-inst: #0A3F77;       /* áreas de apoio */
  --azul-tec: #087FC8;        /* detalhes e informação secundária */
  --verde: #57B932;           /* ênfase pontual (uso controlado) */
  --verde-escuro: #4aa028;

  --ink: #10233a;
  --muted: #5d6b7c;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f3f6fa;

  --radius: 10px;
  --shadow-sm: 0 1px 3px rgba(5, 40, 78, .08);
  --shadow-md: 0 10px 30px rgba(5, 40, 78, .12);
  --container: 1160px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: 'Montserrat', Arial, system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -.01em; color: var(--azul-profundo); font-weight: 700; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Buttons (sólidos, sobriedade corporativa) ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: inherit; font-weight: 600; font-size: .92rem; letter-spacing: .2px;
  padding: 14px 28px; border-radius: 8px; cursor: pointer;
  border: 2px solid transparent; transition: background .2s, color .2s, border-color .2s, transform .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--azul-tec); color: #fff; }
.btn-primary:hover { background: var(--azul-inst); }
.btn-ghost { border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }
.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding: 18px 0; transition: background .3s, box-shadow .3s, padding .3s;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, .97);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 40px; height: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; color: #fff; transition: color .3s; }
.brand-text strong { font-size: 1.3rem; letter-spacing: .5px; font-weight: 700; }
.brand-text small { font-size: .6rem; letter-spacing: .3px; opacity: .85; text-transform: uppercase; }
.scrolled .brand-text { color: var(--azul-profundo); }

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a { font-size: .9rem; font-weight: 500; color: #fff; position: relative; transition: color .2s; }
.main-nav > a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: var(--verde); transition: width .25s var(--ease);
}
.main-nav > a:not(.nav-cta):hover::after { width: 100%; }
.scrolled .main-nav a { color: var(--azul-profundo); }
.nav-cta { background: var(--azul-tec); color: #fff !important; padding: 9px 20px; border-radius: 7px; }
.nav-cta:hover { background: var(--azul-inst); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 26px; height: 2.5px; background: #fff; border-radius: 2px; transition: .3s; }
.scrolled .nav-toggle span { background: var(--azul-profundo); }

/* ===== Hero ===== */
.hero { position: relative; min-height: 94vh; display: flex; align-items: center; color: #fff; overflow: hidden; }
.hero-media { position: absolute; inset: 0; z-index: -1; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: left center; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(95deg, rgba(5, 40, 78, .94) 0%, rgba(5, 40, 78, .82) 45%, rgba(5, 40, 78, .4) 100%);
}
.hero-content { position: relative; max-width: 720px; padding-top: 90px; }
.hero-eyebrow {
  display: inline-block; font-weight: 600; letter-spacing: 2px; text-transform: uppercase;
  font-size: .76rem; color: #fff; margin: 0 0 20px;
  border-left: 3px solid var(--verde); padding-left: 14px;
}
.hero-title { font-size: clamp(2.6rem, 6.5vw, 5rem); font-weight: 800; text-transform: uppercase; color: #fff; letter-spacing: -.5px; }
.hero-title span { color: #fff; position: relative; }
.hero-lead { font-size: clamp(1rem, 1.8vw, 1.18rem); max-width: 560px; margin: 24px 0 34px; color: rgba(255, 255, 255, .88); line-height: 1.6; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Reveal ===== */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }

/* ===== Pilares ===== */
.pillars { background: var(--azul-profundo); color: #fff; }
.pillars-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.pillar { display: flex; gap: 18px; align-items: flex-start; padding: 44px 32px; position: relative; }
.pillar:not(:last-child)::after { content: ""; position: absolute; right: 0; top: 28px; bottom: 28px; width: 1px; background: rgba(255, 255, 255, .13); }
.pillar-num { font-size: 1.6rem; font-weight: 800; color: var(--verde); line-height: 1; flex: none; }
.pillar strong { display: block; font-size: 1.12rem; margin-bottom: 6px; color: #fff; }
.pillar p { margin: 0; font-size: .9rem; color: rgba(255, 255, 255, .72); line-height: 1.55; }

/* ===== Section base ===== */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-soft); }
.eyebrow { font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; font-size: .74rem; color: var(--azul-tec); margin: 0 0 14px; }
.eyebrow.center { text-align: center; }
.eyebrow.light { color: var(--verde); }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 56px; }
.section-head h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
.section-sub { color: var(--muted); margin-top: 14px; font-size: 1.02rem; }
.section-sub.light { color: rgba(255, 255, 255, .72); }

/* ===== Sobre ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1.08fr; gap: 56px; align-items: stretch; }
.about-media { position: relative; min-height: 420px; }
.about-media::before { content: ""; position: absolute; left: -14px; top: 0; bottom: 0; width: 5px; background: var(--verde); border-radius: 3px; z-index: 2; }
.about-media img {
  width: 100%; height: 100%; min-height: 420px;
  object-fit: cover; object-position: 62% center;
  border-radius: var(--radius); box-shadow: var(--shadow-md);
}
.about-media .about-caption {
  position: absolute; left: 14px; bottom: 14px; z-index: 2;
  background: rgba(5, 40, 78, .88); color: #fff; font-size: .78rem; font-weight: 600;
  letter-spacing: .3px; padding: 8px 14px; border-radius: 7px; border-left: 3px solid var(--verde);
}
.about-text h2 { font-size: clamp(1.9rem, 3.4vw, 2.5rem); margin-bottom: 14px; }
.lead-text { font-size: 1.18rem; font-weight: 600; color: var(--azul-inst); margin: 0 0 18px; line-height: 1.4; }
.about-text p { color: var(--muted); margin: 0 0 14px; }

.company-card { margin-top: 28px; background: var(--bg-soft); border: 1px solid var(--line); border-left: 4px solid var(--azul-tec); border-radius: var(--radius); padding: 22px 24px; }
.company-card h3 { font-size: .82rem; text-transform: uppercase; letter-spacing: 1.2px; color: var(--azul-tec); margin-bottom: 14px; }
.company-card dl { margin: 0; display: grid; gap: 10px; }
.company-card dl > div { display: flex; flex-wrap: wrap; gap: 4px 10px; }
.company-card dt { font-weight: 600; color: var(--azul-profundo); min-width: 112px; font-size: .9rem; }
.company-card dd { margin: 0; color: var(--muted); font-size: .9rem; }
[data-fill] { position: relative; }

/* ===== Cards ===== */
.cards-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--verde);
  border-radius: var(--radius); padding: 30px 26px; position: relative;
  transition: transform .25s var(--ease), box-shadow .25s, border-color .25s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.card-index { position: absolute; top: 22px; right: 24px; font-size: .95rem; font-weight: 700; color: var(--line); letter-spacing: 1px; }
.card-icon { width: 54px; height: 54px; border-radius: 10px; display: grid; place-items: center; background: rgba(8, 127, 200, .1); color: var(--azul-tec); margin-bottom: 20px; }
.card-icon svg { width: 28px; height: 28px; }
.card h3 { font-size: 1.22rem; margin-bottom: 10px; }
.card p { color: var(--muted); margin: 0; font-size: .92rem; line-height: 1.6; }
.disclaimer { text-align: center; margin: 36px auto 0; max-width: 680px; font-size: .86rem; color: var(--muted); }

/* ===== Processo (steps) ===== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { background: var(--bg-soft); border: 1px solid var(--line); border-left: 4px solid var(--verde); border-radius: var(--radius); padding: 30px 28px; transition: transform .25s var(--ease), box-shadow .25s; }
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step-featured { background: var(--azul-profundo); border-color: var(--azul-profundo); color: #fff; }
.step-featured h3 { color: #fff; }
.step-tag { display: inline-block; font-size: .74rem; text-transform: uppercase; letter-spacing: 1.4px; font-weight: 700; color: var(--azul-tec); margin-bottom: 12px; }
.step-featured .step-tag { color: var(--verde); }
.step h3 { font-size: 1.32rem; margin-bottom: 10px; }
.step p { margin: 0; color: var(--muted); font-size: .94rem; line-height: 1.6; }
.step-featured p { color: rgba(255, 255, 255, .8); }

/* ===== Banda de posicionamento ===== */
.quote-band { position: relative; color: #fff; overflow: hidden; }
.quote-media { position: absolute; inset: 0; z-index: -2; background: url('/assets/banner-mineracao.png') left center/cover no-repeat; background-attachment: fixed; }
.quote-band::after { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(5, 40, 78, .9); }
.quote-inner { padding: 84px 24px; text-align: center; max-width: 820px; }
.quote-eyebrow { font-size: .74rem; letter-spacing: 2px; text-transform: uppercase; color: var(--verde); font-weight: 700; margin: 0 0 16px; }
.quote-text { font-size: clamp(1.5rem, 3.4vw, 2.3rem); font-weight: 700; line-height: 1.3; margin: 0; color: #fff; }

/* ===== SSMA (dark) ===== */
.section-dark { background: var(--azul-inst); color: #fff; }
.ssma-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.ssma-head h2 { color: #fff; font-size: clamp(1.9rem, 3.4vw, 2.5rem); }
.ssma-head .eyebrow { text-align: left; }
.ssma-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.ssma-list li { display: flex; gap: 18px; align-items: flex-start; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1); border-radius: var(--radius); padding: 22px 24px; transition: background .2s, transform .2s; }
.ssma-list li:hover { background: rgba(255, 255, 255, .1); transform: translateX(5px); }
.ssma-num { font-size: 1.5rem; font-weight: 800; color: var(--verde); line-height: 1; flex: none; }
.ssma-list strong { display: block; font-size: 1.1rem; margin-bottom: 4px; color: #fff; }
.ssma-list p { margin: 0; font-size: .92rem; color: rgba(255, 255, 255, .75); line-height: 1.55; }

/* ===== Contato (simplificado, centralizado) ===== */
.contact-simple { max-width: 680px; margin: 0 auto; text-align: center; }
.contact-simple h2 { font-size: clamp(1.9rem, 3.4vw, 2.5rem); margin-bottom: 16px; }
.contact-lead { color: var(--muted); margin: 0 auto 30px; max-width: 560px; }
.contact-email {
  display: inline-flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 12px;
  max-width: 100%; word-break: break-word; overflow-wrap: anywhere;
  font-size: clamp(1rem, 2.4vw, 1.4rem); font-weight: 700; color: var(--azul-profundo);
  padding: 14px 24px; background: #fff; border: 1px solid var(--line);
  border-left: 4px solid var(--verde); border-radius: var(--radius); box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, color .2s;
}
.contact-email { margin-bottom: 30px; }
.contact-email:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--azul-tec); }
.contact-email svg { width: 24px; height: 24px; flex: 0 0 auto; color: var(--azul-tec); }
.contact-email span { word-break: break-word; overflow-wrap: anywhere; }
.contact-note { font-size: .86rem; color: var(--muted); border-left: 3px solid var(--verde); padding-left: 14px; display: inline-block; text-align: left; }
.contact-note.center { max-width: 460px; margin: 0 auto; }

/* ===== Contato (layout antigo com formulário — mantido para referência) ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 54px; align-items: start; }
.contact-info h2 { font-size: clamp(1.9rem, 3.4vw, 2.4rem); margin-bottom: 16px; }
.contact-info > p { color: var(--muted); }
.contact-list { list-style: none; padding: 0; margin: 30px 0 22px; display: grid; gap: 20px; }
.contact-list li { display: flex; gap: 16px; align-items: center; }
.contact-list svg { width: 22px; height: 22px; color: var(--azul-tec); flex: none; }
.contact-list span { display: block; font-size: .74rem; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); }
.contact-list a { font-weight: 600; color: var(--azul-profundo); }
.contact-note { font-size: .86rem; color: var(--muted); border-left: 3px solid var(--verde); padding-left: 14px; }

.contact-form { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.field { margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label { display: block; font-size: .82rem; font-weight: 600; margin-bottom: 7px; color: var(--azul-profundo); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px;
  font-family: inherit; font-size: .94rem; color: var(--ink); background: #fff; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--azul-tec); box-shadow: 0 0 0 3px rgba(8, 127, 200, .14); }
.field textarea { resize: vertical; }
.form-note { margin: 12px 0 0; font-size: .9rem; font-weight: 600; min-height: 1.2em; }
.form-note.ok { color: var(--verde-escuro); }
.form-note.err { color: #d14343; }

/* ===== Footer ===== */
.site-footer { background: var(--azul-profundo); color: rgba(255, 255, 255, .8); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 40px; padding: 56px 24px 40px; align-items: start; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { width: 46px; }
.footer-brand strong { display: block; font-size: 1.3rem; letter-spacing: .5px; color: #fff; }
.footer-brand span { font-size: .76rem; opacity: .75; }
.footer-nav { display: flex; flex-direction: column; gap: 11px; }
.footer-nav a { transition: color .2s; font-size: .94rem; }
.footer-nav a:hover { color: var(--verde); }
.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-label { font-size: .74rem; text-transform: uppercase; letter-spacing: 1.2px; color: var(--verde); font-weight: 700; }
.footer-email { display: inline-flex; align-items: center; gap: 8px; color: #fff; font-weight: 600; font-size: .94rem; word-break: break-word; overflow-wrap: anywhere; transition: color .2s; }
.footer-email svg { width: 18px; height: 18px; flex: 0 0 auto; color: var(--verde); }
.footer-email:hover { color: var(--verde); }
.footer-tag { color: rgba(255, 255, 255, .62); margin: 6px 0 0; font-size: .9rem; line-height: 1.6; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); }
.footer-bottom .container { padding-top: 18px; padding-bottom: 18px; font-size: .82rem; color: rgba(255, 255, 255, .5); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .ssma-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-media { max-width: 560px; }
  .pillars-grid { grid-template-columns: 1fr; }
  .pillar:not(:last-child)::after { display: none; }
  .pillar { border-bottom: 1px solid rgba(255, 255, 255, .12); padding: 30px 20px; }
}
@media (max-width: 760px) {
  .main-nav {
    position: fixed; inset: 0 0 auto 0; min-height: 100vh; flex-direction: column; align-items: stretch;
    background: var(--azul-profundo); padding: 90px 28px 40px; gap: 2px; transform: translateY(-110%);
    transition: transform .4s var(--ease); box-shadow: var(--shadow-md); overflow-y: auto;
  }
  .main-nav.open { transform: translateY(0); }
  /* Dentro do overlay escuro, os links são sempre brancos — mesmo com o header .scrolled */
  .main-nav a,
  .scrolled .main-nav a { color: #fff; padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, .08); }
  .main-nav > a:not(.nav-cta)::after { display: none; }
  .nav-cta { text-align: center; margin-top: 12px; }
  .nav-toggle { display: flex; z-index: 101; }
  .nav-toggle.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); background: #fff; }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); background: #fff; }
  .section { padding: 68px 0; }
  .steps { grid-template-columns: 1fr; }
  .quote-media { background-attachment: scroll; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .brand-text small { display: none; }
}
@media (max-width: 480px) {
  .cards-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1; }
  .contact-email { font-size: .92rem; padding: 12px 16px; gap: 8px; }
  .contact-email svg { width: 20px; height: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; }
  .quote-media { background-attachment: scroll; }
}