/*
  Base de estilo compartilhada por todas as páginas do site Alctel.
  Contém apenas o que é comum a (quase) todas as páginas: reset, variáveis
  de marca, nav, botões, hero padrão, seções, CTA, footer e o componente
  de card usado nas páginas de funcionalidades/setores/parceiros.
  Cada página mantém, no próprio <style>, apenas o CSS específico dela.
*/

:root {
  --navy:       #0A1628;
  --navy-deep:  #060E1A;
  --navy-mid:   #111F35;
  --orange:     #e43b17;
  --orange-dim: rgba(228,59,23,0.10);
  --orange-brd: rgba(228,59,23,0.28);
  --text:       rgba(255,255,255,0.88);
  --muted:      rgba(255,255,255,0.42);
  --linha:      rgba(255,255,255,0.07);
  --green:      #00C875;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body { font-family: 'Inter', sans-serif; background: var(--navy); color: var(--text); line-height: 1.7; overflow-x: hidden; }
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(228,59,23,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(228,59,23,0.022) 1px, transparent 1px);
  background-size: 52px 52px;
  pointer-events: none;
  z-index: 0;
}

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 48px; position: relative; z-index: 1; }
.section { position: relative; z-index: 1; padding: 96px 0; border-top: 1px solid var(--linha); }
.section-dark { background: var(--navy-deep); }

h2 { font-family: 'Plus Jakarta Sans', sans-serif; font-size: clamp(2rem, 3.8vw, 3.2rem); font-weight: 900; color: white; line-height: 1.07; letter-spacing: -2px; margin-bottom: 18px; }
h2 em { font-style: normal; color: var(--orange); }
.section-intro { max-width: 680px; margin-bottom: 56px; }
.section-intro p { font-size: .95rem; color: var(--muted); line-height: 1.7; }

.btn { display: inline-flex; align-items: center; gap: 6px; font-family: 'Inter', sans-serif; font-size: .84rem; font-weight: 700; padding: 11px 24px; border-radius: 6px; border: none; cursor: pointer; text-decoration: none; transition: opacity .2s, transform .15s; }
.btn:hover { opacity: .9; transform: translateY(-1px); }
.btn-orange { background: var(--orange); color: white; }
.btn-ghost { background: transparent; color: rgba(10,22,40,0.55); border: 1px solid rgba(10,22,40,0.18); }

/* ── NAV ── */
nav { position: sticky; top: 0; z-index: 200; background: rgba(255,255,255,0.98); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(0,0,0,0.08); box-shadow: 0 1px 16px rgba(0,0,0,0.06); }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 48px; display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; text-decoration: none; }
.logo img { height: 52px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a { font-size: 0.875rem; font-weight: 700; color: rgba(10,22,40,0.55); text-decoration: none; padding: 6px 14px; border-radius: 5px; transition: color .2s, background .2s; }
.nav-links a:hover { color: var(--navy); background: rgba(10,22,40,0.05); }
.nav-cta { display: flex; align-items: center; gap: 10px; }

.nav-item { position: relative; }
.nav-item-label { font-size: 0.875rem; font-weight: 700; color: rgba(10,22,40,0.55); padding: 6px 14px; border-radius: 5px; cursor: default; display: flex; align-items: center; gap: 5px; transition: color .2s, background .2s; user-select: none; }
.nav-item-label::after { content: ''; display: inline-block; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); opacity: .6; transition: transform .2s; }
.nav-item:hover .nav-item-label { color: var(--navy); background: rgba(10,22,40,0.05); }
.nav-item:hover .nav-item-label::after { transform: rotate(-135deg) translateY(-2px); }
.dropdown::before { content: ''; position: absolute; top: -12px; left: 0; right: 0; height: 12px; }
.dropdown { position: absolute; top: calc(100% + 8px); left: 0; background: #0D1C30; border: 1px solid var(--linha); border-radius: 8px; padding: 8px 0; min-width: 210px; opacity: 0; pointer-events: none; transform: translateY(-6px); transition: opacity .18s, transform .18s; z-index: 300; }
.nav-item:hover .dropdown { opacity: 1; pointer-events: auto; transform: translateY(0); }
.dropdown a { display: block; font-size: .81rem; font-weight: 500; color: var(--muted); text-decoration: none; padding: 8px 18px; transition: color .15s, background .15s; background: none; border-radius: 0; }
.dropdown a:hover { color: white; background: rgba(255,255,255,0.05); }

/* ── HERO padrão das páginas internas ── */
.hero { position: relative; z-index: 1; padding: 96px 48px 80px; max-width: 1100px; margin: 0 auto; }
.hero h1 { font-family: 'Plus Jakarta Sans', sans-serif; font-size: clamp(2.8rem, 5.5vw, 5rem); font-weight: 900; color: white; line-height: 1.02; letter-spacing: -3px; margin-bottom: 24px; }
.hero h1 em { font-style: normal; color: var(--orange); }

/* ── CTA ── */
.cta-block { text-align: center; max-width: 560px; margin: 0 auto; }
.cta-block h2 { margin-bottom: 16px; }
.cta-block p { font-size: .95rem; color: var(--muted); margin-bottom: 32px; line-height: 1.7; }

/* ── FOOTER simples (páginas internas) ── */
footer { position: relative; z-index: 1; border-top: 1px solid var(--linha); background: var(--navy-deep); }
.footer-bottom { max-width: 1100px; margin: 0 auto; padding: 24px 48px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-bottom p { font-family: 'JetBrains Mono', monospace; font-size: .62rem; color: var(--muted); }
.footer-bottom strong { color: white; }

/* ── CARD genérico usado em funcionalidades / setores / parceiros ── */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.card { background: var(--navy-mid); border: 1px solid var(--linha); border-top: 2px solid transparent; padding: 28px 24px; transition: border-color .2s, border-top-color .2s; }
.card:hover { border-color: var(--orange-brd); border-top-color: var(--orange); }
.card h3 { font-family: 'Plus Jakarta Sans', sans-serif; font-size: .98rem; font-weight: 800; color: white; margin-bottom: 10px; }
.card p { font-size: .84rem; color: var(--muted); line-height: 1.65; }

/* ── MENU MOBILE (botão hambúrguer) ── */
/* O botão e os botões de CTA do menu mobile são criados por assets/nav.js.
   Ficam escondidos no desktop e só aparecem abaixo de 900px. */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 40px;
  padding: 9px 8px;
  background: transparent;
  border: 1px solid rgba(10,22,40,0.18);
  border-radius: 6px;
  cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--navy); border-radius: 2px; transition: transform .2s, opacity .2s; }
nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-cta-mobile { display: none; }

/* Nota: os seletores abaixo usam o prefixo `nav ` de propósito, para ganhar
   prioridade sobre o CSS de menu que o index.html ainda mantém embutido.
   Sem isso, o painel mobile ficaria desalinhado só no index. */
@media (max-width: 900px) {
  nav .nav-toggle { display: flex; }
  nav .nav-cta { display: none; }

  /* .nav-links vira um painel que abre abaixo da barra */
  nav .nav-links {
    display: none;
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    box-shadow: 0 14px 30px rgba(0,0,0,0.14);
    padding: 8px 0 12px;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  nav.open .nav-links { display: flex; }

  nav .nav-item { width: 100%; position: static; }
  nav .nav-links > li > a,
  nav .nav-item-label {
    width: 100%;
    padding: 15px 24px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(10,22,40,0.06);
  }
  nav .nav-item-label::after { margin-left: auto; opacity: .5; }
  nav .nav-item.open .nav-item-label::after { transform: rotate(-135deg) translateY(-2px); }
  nav .nav-item:hover .nav-item-label { background: transparent; color: rgba(10,22,40,0.55); }

  /* dropdowns viram acordeão: fechados por padrão, abrem ao tocar no título */
  nav .dropdown {
    display: none;
    position: static;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    min-width: 0;
    background: rgba(10,22,40,0.03);
    border: none;
    border-radius: 0;
    padding: 4px 0;
  }
  nav .nav-item.open .dropdown { display: block; }
  nav .dropdown::before { display: none; }
  nav .dropdown a { color: rgba(10,22,40,0.62); padding: 12px 24px 12px 40px; }
  nav .dropdown a:hover { background: rgba(10,22,40,0.06); color: var(--navy); }

  /* CTAs clonados para dentro do painel */
  nav .nav-cta-mobile { display: flex; flex-direction: column; gap: 10px; padding: 16px 24px 8px; }
  nav .nav-cta-mobile .btn { width: 100%; justify-content: center; }

  .hero { padding: 64px 24px 56px; }
  .wrap { padding: 0 24px; }
}