/* ============================================================
   MICHALAK ARQUITETURA — Site institucional
   Deriva 100% dos tokens canônicos da marca (brand-tokens.css).
   Compartilhado entre index.html e portfolio.html
   ============================================================ */

@import url("brand-tokens.css");

:root {
  /* Aliases locais -> apontam para os tokens canônicos da marca.
     Nada de cor/fonte e inventado aqui: tudo vem de brand-tokens.css */
  --azul:        var(--m-primary);     /* #0E3A6B Azul Michalak */
  --azul-fundo:  var(--m-primary-2);   /* #1A4D8C Azul Profundo */
  --azul-ceu:    var(--m-primary-3);   /* #2E78C9 Azul Ceu */
  --azul-suave:  var(--m-primary-soft);/* #DDE7F2 Azul Suave */

  --grafite:  var(--m-ink);
  --concreto: var(--m-muted);
  --aco:      var(--m-muted-2);
  --papel:    var(--m-paper);
  --papel-puro: var(--m-paper-pure);
  --creme:    var(--m-cream);

  --display: var(--m-font-display);
  --texto:   var(--m-font-body);
  --mono:    var(--m-font-mono);

  /* Layout */
  --margem-x: clamp(24px, 6vw, 120px);
  --max-conteudo: 1280px;
  --transicao: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--texto);
  background: var(--papel);
  color: var(--grafite);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Tipografia ---------- */
.eyebrow {
  font-family: var(--texto);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.32em;   /* canonico .m-eyebrow */
  text-transform: uppercase;
  color: var(--azul-ceu);
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  text-transform: uppercase;
  line-height: 0.96;
  letter-spacing: -0.005em;
}

p { max-width: 62ch; }

a { color: var(--azul-ceu); text-decoration: none; }

/* ---------- Wordmark + tagline (proporcao canonica ~6.5:1) ---------- */
.wordmark {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.005em;
  line-height: 0.88;
}
.tagline {
  font-family: var(--texto);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  text-align: center;       /* canonico: sempre centralizada sob o wordmark */
  white-space: nowrap;      /* nunca quebra em duas linhas */
}

/* Versao preferencial: wordmark com preenchimento fotografico */
.wordmark-photo {
  background-image: url("institucional.png");
  background-size: cover;
  background-position: center 38%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* ---------- Navbar ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--margem-x);
  background: rgba(246, 244, 239, 0);
  transition: background var(--transicao), box-shadow var(--transicao), padding var(--transicao);
}
.nav.scrolled {
  background: rgba(246, 244, 239, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(14, 17, 22, 0.08);
  padding-top: 14px;
  padding-bottom: 14px;
}
.nav-brand { display: inline-flex; flex-direction: column; align-items: center; line-height: 1; text-align: center; }
.nav-brand .wordmark { font-size: 38px; color: var(--azul); }
.nav-brand .tagline { font-size: 6px; color: var(--azul); margin-top: 5px; letter-spacing: 0.22em; } /* ~6.5:1 */
.nav.on-dark .nav-brand .wordmark,
.nav.on-dark .nav-brand .tagline { color: var(--papel); }

.nav-links { display: flex; gap: 36px; align-items: center; justify-content: center; }
.nav-links a {
  font-family: var(--texto);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grafite);
  transition: color 0.25s;
}
.nav.on-dark .nav-links a { color: var(--papel); }
.nav-links a:hover { color: var(--azul-ceu); }
.nav-links a.cta-link {
  border: 1px solid var(--azul);
  color: var(--azul);
  padding: 9px 18px;
  border-radius: 2px;
  transition: all 0.25s;
}
.nav.on-dark .nav-links a.cta-link { border-color: var(--papel); color: var(--papel); }
.nav-links a.cta-link:hover { background: var(--azul); color: var(--papel); border-color: var(--azul); }

.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 6px;
}
.nav-toggle span {
  width: 26px; height: 2px; background: var(--grafite); transition: 0.3s;
}
.nav.on-dark .nav-toggle span { background: var(--papel); }

/* ---------- Botoes ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--texto);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 16px 28px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.28s;
  border: 1px solid transparent;
}
.btn-primary { background: var(--azul); color: var(--papel); }
.btn-primary:hover { background: var(--azul-fundo); transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--papel); color: var(--papel); }
.btn-ghost:hover { background: var(--papel); color: var(--azul); }
.btn-outline { background: transparent; border-color: var(--azul); color: var(--azul); }
.btn-outline:hover { background: var(--azul); color: var(--papel); }
.btn .arrow { transition: transform 0.28s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- Footer ---------- */
.footer {
  background: var(--azul);
  color: var(--papel);
  padding: 72px var(--margem-x) 40px;
}
.footer-grid {
  max-width: var(--max-conteudo);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  align-items: start;
  justify-items: center;
}
.footer .nav-brand { display: inline-flex; }
.footer-brandbox { display: inline-flex; flex-direction: column; align-items: center; text-align: center; }
.footer .wordmark { font-size: 52px; color: var(--papel); }
.footer .tagline { font-size: 8px; color: var(--azul-suave); margin-top: 7px; letter-spacing: 0.18em; text-align: center; }
.footer-col h4 {
  font-family: var(--texto);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--azul-suave);
  margin-bottom: 16px;
}
.footer-col a, .footer-col p {
  display: block;
  color: var(--papel);
  font-size: 15px;
  margin-bottom: 10px;
  opacity: 0.9;
  transition: opacity 0.2s;
}
.footer-col a:hover { opacity: 1; color: var(--azul-suave); }
.footer-bottom {
  max-width: var(--max-conteudo);
  margin: 56px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(246,244,239,0.18);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--azul-suave);
}

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed;
  bottom: 26px; right: 26px;
  z-index: 90;
  display: flex; align-items: center; gap: 10px;
  background: #25D366;
  color: #fff;
  padding: 14px 20px;
  border-radius: 50px;
  font-family: var(--texto);
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  transition: transform 0.25s, box-shadow 0.25s;
}
.wa-float:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.24); color:#fff; }
.wa-float svg { width: 22px; height: 22px; }
.wa-float .wa-label { white-space: nowrap; }

/* ---------- Placeholder de imagem (linguagem fotografica da marca) ----------
   Usa a foto institucional canonica com leve veu azul, no lugar de um grid generico.
   Para a foto real: adicione a classe has-img e style="background-image:url('...')" */
.img-ph {
  position: relative;
  background: linear-gradient(180deg, rgba(14,58,107,0.30), rgba(14,58,107,0.55)), url("institucional.png");
  background-size: cover;
  background-position: center 38%;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
}
.img-ph .ph-label {
  position: relative;
  z-index: 1;
  font-family: var(--texto);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(246,244,239,0.78);
  padding: 14px 16px;
}
.img-ph.has-img { background: none; background-size: cover; background-position: center; }
.img-ph.has-img .ph-label { display: none; }

/* ---------- Faixa de assinatura (wordmark fotografico - versao preferencial) ---------- */
.assinatura {
  background: var(--papel);
  padding: 120px var(--margem-x);
  text-align: center;
}
.assinatura .wordmark-stack {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
}
.assinatura .wordmark {
  font-size: clamp(72px, 16vw, 220px);
  color: var(--azul);
  line-height: 0.88;
}
.assinatura .tagline {
  font-size: clamp(11px, 2.4vw, 33px);  /* ~6.5:1 com o wordmark */
  color: var(--azul);
  margin-top: 0.12em;
  letter-spacing: 0.22em;
}
.assinatura .assinatura-sub {
  font-family: var(--texto);
  font-size: 15px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--concreto);
  margin-top: 28px;
}

/* ---------- Responsivo base ---------- */
@media (max-width: 880px) {
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background: var(--azul);
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16,1,0.3,1);
    padding: 40px;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { color: var(--papel); font-size: 16px; }
  .nav-links a.cta-link { border-color: var(--papel); color: var(--papel); }
  .nav-toggle { display: flex; z-index: 101; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .wa-float .wa-label { display: none; }
  .wa-float { padding: 16px; }
  .assinatura { padding: 80px var(--margem-x); }
}