/* ============================================================
   Fortaleza Sub & Via — Design System Compartilhado
   Segue o padrão visual do index.html (DM Sans + DM Serif Display)
   ============================================================ */

@import url('fonts.css');

/* ── Tokens — Tema Claro ── */
:root {
  --bg:           #f3f0e8;
  --surface:      #fdfcf7;
  --border:       rgba(50,40,20,.10);
  --border-strong:rgba(50,40,20,.18);
  --ink:          #18140c;
  --ink-mid:      #5a4e38;
  --ink-faint:    #9e9078;
  --tunel:        #1d4ed8;
  --tunel-bg:     #eff6ff;
  --viaduto:      #b45309;
  --viaduto-bg:   #fffbeb;
  --ponte:        #166534;
  --ponte-bg:     #f0fdf4;
  --nav-bg:       rgba(243,240,232,.92);
  --transition:   color .2s, background-color .2s, border-color .2s;
}

/* ── Tokens — Tema Escuro ── */
[data-theme="dark"] {
  --bg:           #1c1916;
  --surface:      #252118;
  --border:       rgba(255,240,210,.08);
  --border-strong:rgba(255,240,210,.16);
  --ink:          #f0ece0;
  --ink-mid:      #c0b49a;
  --ink-faint:    #7a7060;
  --tunel:        #60a5fa;
  --tunel-bg:     #1e2a3a;
  --viaduto:      #f59e0b;
  --viaduto-bg:   #2a1e0c;
  --ponte:        #4ade80;
  --ponte-bg:     #0c1f14;
  --nav-bg:       rgba(28,25,22,.94);
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color .3s, color .3s;
}

/* ── Navegação fixa ── */
nav.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  height: 60px;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background-color .3s, border-color .3s;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.nav-mark {
  width: 34px;
  height: 34px;
  background: var(--ink);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg);
  font-family: 'DM Serif Display', serif;
  font-size: 12px;
  letter-spacing: -.5px;
  flex-shrink: 0;
  transition: background-color .3s, color .3s;
}

.nav-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  transition: color .3s;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav-links a {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-mid);
  text-decoration: none;
  transition: color .2s;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a.ativo {
  color: var(--ink);
  border-bottom-color: var(--viaduto);
}

/* ── Theme Toggle Button ── */
.theme-toggle {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--ink-mid);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  transition: background-color .2s, border-color .2s, transform .15s;
  margin-left: .5rem;
}
.theme-toggle:hover {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
  transform: scale(1.08);
}

/* ── Hamburger button (mobile only) ── */
.nav-hamburger {
  display: none;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background-color .2s;
  margin-left: .5rem;
}
.nav-hamburger:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.nav-hamburger svg { pointer-events: none; }

/* ── Mobile menu overlay ── */
.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 60px; left: 0; right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 199;
  padding: 1rem 1.5rem;
  flex-direction: column;
  gap: .25rem;
  box-shadow: 0 8px 24px -4px rgba(0,0,0,.15);
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-mid);
  text-decoration: none;
  padding: .75rem .5rem;
  border-bottom: 1px solid var(--border);
  transition: color .2s;
}
.nav-mobile-menu a:last-child { border-bottom: none; }
.nav-mobile-menu a:hover, .nav-mobile-menu a.ativo { color: var(--viaduto); }

/* ── Conteúdo principal ── */
main.page-content {
  flex: 1;
  padding-top: 60px;
}

/* ── Seções ── */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Tipografia editorial ── */
h1, h2.display {
  font-family: 'DM Serif Display', serif;
  letter-spacing: -.02em;
  line-height: 1.1;
}

h2.section-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -.02em;
  color: var(--ink);
}

h2.section-title em {
  font-style: italic;
  color: var(--ink-mid);
}

.text-mid { color: var(--ink-mid); }
.text-faint { color: var(--ink-faint); }

/* ── Cards ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px -10px rgba(24,20,12,.12);
  border-color: var(--border-strong);
}

/* ── Blocos de destaque ── */
.highlight-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
}

.callout {
  background: var(--viaduto-bg);
  border: 1px solid rgba(180,83,9,.18);
  border-radius: 11px;
  padding: 1.2rem 1.4rem;
  font-size: 13px;
  color: var(--viaduto);
  line-height: 1.65;
}

/* ── Rodapé ── */
footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
  text-align: center;
  font-size: 11.5px;
  color: var(--ink-faint);
  line-height: 1.9;
  background: var(--bg);
  transition: background-color .3s, border-color .3s;
}

footer.site-footer strong {
  color: var(--ink-mid);
  font-weight: 600;
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .4rem 1.4rem;
  margin: .75rem 0;
}

.footer-nav a {
  color: var(--ink-faint);
  text-decoration: none;
  transition: color .2s;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.footer-nav a:hover { color: var(--viaduto); }

/* ── Botão Voltar ao Topo ── */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--ink);
  color: var(--bg);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  font-size: .85rem;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(24,20,12,.25);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s, transform .2s;
  z-index: 9999;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  background: var(--viaduto);
  transform: scale(1.08);
}

#back-to-top:active {
  transform: scale(.95);
}

/* ── Badges ── */
.badge {
  display: inline-block;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: .17em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 100px;
}

.badge-tunel  { background: var(--tunel-bg);  color: var(--tunel);  border: 1px solid rgba(29,78,216,.18); }
.badge-viaduto{ background: var(--viaduto-bg);color: var(--viaduto);border: 1px solid rgba(180,83,9,.18);  }
.badge-ponte  { background: var(--ponte-bg);  color: var(--ponte);  border: 1px solid rgba(22,101,52,.18); }

/* ── Formulários ── */
.form-group { margin-bottom: 1.2rem; }

.form-group label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: .5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: .75rem 1rem;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--viaduto);
  box-shadow: 0 0 0 3px rgba(180,83,9,.1);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
}

/* ── Botões ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: .75rem 1.75rem;
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background .18s, border-color .18s, transform .15s, box-shadow .15s;
}

.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.btn-primary:hover {
  background: var(--viaduto);
  border-color: var(--viaduto);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0) scale(.97);
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0) scale(.97);
  box-shadow: none;
}

.btn-full { width: 100%; justify-content: center; }

/* ── Pill de info ── */
.info-pill {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .9rem 1.1rem;
}

.info-pill .lbl {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.info-pill .val {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}

/* ── KPI simples ── */
.kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kpi .num {
  font-family: 'DM Serif Display', serif;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--ink);
}

.kpi .lbl {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ── FAQ simples ── */
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 1.2rem 1.4rem;
  margin-bottom: .75rem;
}

.faq-item .faq-q {
  font-weight: 600;
  font-size: 14px;
  color: var(--ink);
  margin-bottom: .5rem;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.faq-item .faq-q::before {
  content: 'P.';
  font-family: 'DM Serif Display', serif;
  font-size: 13px;
  color: var(--viaduto);
  flex-shrink: 0;
  margin-top: 1px;
}

.faq-item .faq-a {
  font-size: 13px;
  color: var(--ink-mid);
  line-height: 1.7;
  padding-left: 1.6rem;
}

/* ── Page hero (usado em páginas institucionais) ── */
.page-hero {
  padding: 6rem 2rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 4px 13px;
  border-radius: 100px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  margin-bottom: 1.5rem;
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--viaduto);
}

.page-hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: .95;
  letter-spacing: -.03em;
  margin-bottom: 1.5rem;
}

.page-hero h1 em { font-style: italic; color: var(--ink-mid); }

.page-hero p.lead {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-mid);
  max-width: 600px;
}

.section + .section { border-top: 1px solid var(--border); }

/* ── Prosa editorial ── */
.prose p { font-size: 14px; color: var(--ink-mid); line-height: 1.8; margin-bottom: 1.25rem; }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--viaduto); text-decoration: none; }
.prose a:hover { text-decoration: underline; }

/* ── Layout de duas colunas ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
/* (responsive: grid-template-columns: 1fr dentro do @media 768px acima) */

/* ── Reading Progress Bar ── */
#reading-progress {
  position: fixed;
  top: 60px;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--viaduto);
  z-index: 201;
  transition: width .1s linear;
  border-radius: 0 2px 2px 0;
  pointer-events: none;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal.revealed { opacity: 1; transform: none; transition: none; }
}

/* ── Share Bar ── */
.share-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  flex-wrap: wrap;
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.share-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-right: .25rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background .18s, color .18s, transform .15s;
  border: 1px solid var(--border-strong);
  color: var(--ink-mid);
  background: var(--surface);
}

.share-btn:hover {
  transform: translateY(-2px);
  color: var(--bg);
}

.share-fb:hover  { background: #1877f2; border-color: #1877f2; }
.share-wa:hover  { background: #25d366; border-color: #25d366; }
.share-tw:hover  { background: #000;    border-color: #000; }