/* ==========================================================================
   Instituto Real Society — Sistema de design (v2)
   Marca: PRETO protagonista, DOURADO de prestígio, azul petróleo de suporte.
   Referências: Brand Guideline e Pitch Deck (skyline dourado sobre preto).
   ========================================================================== */

/* ----- Fontes locais (antes vinham do Google Fonts; agora carregam do próprio site) ----- */
@font-face {
  font-family: "Playfair Display SC";
  font-style: normal; font-weight: 400; font-display: swap;
  src: url("/assets/fonts/playfair-sc-400.woff2") format("woff2");
}
@font-face {
  font-family: "Marcellus";
  font-style: normal; font-weight: 400; font-display: swap;
  src: url("/assets/fonts/marcellus-400.woff2") format("woff2");
}
@font-face {
  font-family: "Montserrat";
  font-style: normal; font-weight: 100 900; font-display: swap;
  src: url("/assets/fonts/montserrat-var.woff2") format("woff2");
}

:root {
  /* Base preta com camadas quentes */
  --black:       #000000;
  --bg:          #07070a; /* fundo principal, preto levemente quente */
  --bg-2:        #0d0c0e; /* seção alternada */
  --bg-3:        #100d0b; /* seção com calor (marrom escuríssimo) */
  --surface:     #141318; /* cartões */
  --surface-2:   #19171c;

  /* Azul petróleo — apenas APOIO (painéis pontuais, detalhes) */
  --blue:        #0E2A38;
  --blue-soft:   #14323F;

  /* Dourado ocre — acento de prestígio */
  --gold:        #C6A15B;
  --gold-soft:   #D7BE86;
  --gold-deep:   #9c7b3b;

  /* Neutros */
  --offwhite:    #F5F5F5;
  --on-dark:     #F5F3EE;
  --on-dark-soft:rgba(245,243,238,.78); /* medido ~7:1 sobre o preto (AA/AAA) */
  --on-gold:     #100b02; /* texto sobre dourado (alto contraste) */
  --hair:        rgba(198,161,91,.18); /* linha dourada sutil */
  --hair-soft:   rgba(243,241,236,.08);

  /* Tipografia */
  --font-display: "Playfair Display SC", Georgia, "Times New Roman", serif;
  --font-body:    "Marcellus", Georgia, "Times New Roman", serif;
  --font-ui:      "Montserrat", system-ui, -apple-system, Segoe UI, sans-serif;

  /* Métricas */
  --container: 1200px;
  --container-narrow: 880px;
  --radius: 2px;
  --header-h: 96px;
  --section-y: clamp(4.5rem, 9vw, 9.5rem);
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--on-dark);
  line-height: 1.7;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: var(--radius); }
::selection { background: var(--gold); color: var(--on-gold); }

/* Link "pular para o conteúdo" (acessibilidade) */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--gold); color: var(--on-gold);
  padding: .6rem 1rem; border-radius: var(--radius);
  font-family: var(--font-ui); font-size: .85rem;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ----- Tipografia ----- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; line-height: 1.12; letter-spacing: .005em; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 5.6vw, 4.4rem); }
h2 { font-size: clamp(2rem, 3.8vw, 3.1rem); }
h3 { font-size: clamp(1.3rem, 2.1vw, 1.65rem); }
/* text-wrap: pretty evita "órfã" — uma palavra sozinha na última linha.
   Onde o navegador não suporta, a quebra volta ao padrão sem prejuízo. */
p  { color: var(--on-dark-soft); text-wrap: pretty; }
p + p { margin-top: 1.15rem; }
strong { color: var(--on-dark); font-weight: inherit; }

/* Palavra dourada dentro de títulos (assinatura da marca) */
.gold { color: var(--gold); }

/* Eyebrow */
.eyebrow {
  font-family: var(--font-ui);
  text-transform: uppercase; letter-spacing: .32em; font-size: .72rem; font-weight: 500;
  color: var(--gold);
  display: inline-flex; align-items: center; gap: .9rem;
}
.eyebrow::before { content: ""; width: 38px; height: 1px; background: var(--gold); opacity: .85; }
.eyebrow.is-centered { justify-content: center; }
.eyebrow + h1, .eyebrow + h2 { margin-top: 1.25rem; }

/* ----- Layout ----- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(1.25rem, 5vw, 3rem); }
.narrow { max-width: var(--container-narrow); }
.section { padding-block: var(--section-y); position: relative; }
/* Páginas curtas (contato) não sustentam o mesmo respiro das páginas densas:
   com pouco conteúdo, --section-y deixa buracos no topo e no fim. */
.section--tight { padding-block: clamp(2.75rem, 4.5vw, 4.5rem); }

/* Fundos: pretos com camadas quentes; azul só em apoio */
.bg-base  { background: var(--bg); }
.bg-2     { background: var(--bg-2); }
.bg-3 {
  background:
    radial-gradient(90% 120% at 15% 0%, rgba(198,161,91,.08), transparent 55%),
    var(--bg-3);
}
.bg-blue  { background: var(--blue); } /* apoio pontual */

/* Régua dourada */
.rule { width: 60px; height: 2px; background: var(--gold); border: 0; margin: 1.7rem 0; }
.rule.is-centered { margin-inline: auto; }

/* ----- Cabeçalho ----- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center;
  transition: background .35s ease, box-shadow .35s ease, height .35s ease;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.site-header.is-scrolled {
  background: rgba(7,7,10,.86); backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--hair); height: 76px;
}
.brand { display: inline-flex; align-items: center; }

/* Lockup da marca: monograma (imagem) + nome e assinatura (texto real).
   --mark-h controla a escala do conjunto inteiro; o texto acompanha. */
.lockup { display: inline-flex; align-items: center; gap: .78em; --mark-h: 52px; }
.lockup-mark {
  height: var(--mark-h); width: auto; display: block; flex: none;
  transition: height .35s ease;
}
.lockup-text { display: flex; flex-direction: column; gap: .34em; min-width: 0; }
.lockup-name {
  font-family: var(--font-display); color: var(--on-dark);
  font-size: calc(var(--mark-h) * .285); line-height: 1;
  letter-spacing: .045em; white-space: nowrap;
}
.lockup-tagline {
  font-family: var(--font-ui); color: var(--gold-soft);
  font-size: calc(var(--mark-h) * .152); line-height: 1;
  letter-spacing: .26em; text-transform: uppercase; white-space: nowrap;
  display: flex; align-items: center; gap: .9em;
}
/* filetes finos dos dois lados, como no logo original */
.lockup-tagline::before, .lockup-tagline::after {
  content: ""; height: 1px; flex: 1 1 auto; min-width: .8em;
  background: linear-gradient(90deg, transparent, var(--gold-deep), transparent);
}
.site-header.is-scrolled .lockup { --mark-h: 42px; }

.nav { display: flex; align-items: center; gap: clamp(1.1rem, 2vw, 2.2rem); }
.nav a {
  font-family: var(--font-ui); font-size: .8rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--on-dark); padding: .4rem 0; position: relative; transition: color .25s ease;
}
.nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 1px; background: var(--gold); transition: right .3s ease; }
.nav a:hover { color: var(--gold-soft); }
.nav a:hover::after { right: 0; }
.nav a[aria-current="page"] { color: var(--gold); }
.nav a[aria-current="page"]::after { right: 0; }

.nav-toggle { display: none; background: none; border: 0; padding: .4rem; width: 46px; height: 46px; position: relative; z-index: 110; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 10px; right: 10px; height: 1.5px; background: var(--on-dark);
  transition: transform .3s ease, opacity .2s ease;
}
.nav-toggle span { top: 50%; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after  { top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { transform: translateY(-7px) rotate(-45deg); }

/* ----- Botões ----- */
.btn {
  display: inline-flex; align-items: center; gap: .7rem;
  font-family: var(--font-ui); font-size: .78rem; letter-spacing: .18em; text-transform: uppercase;
  padding: 1rem 2rem; border: 1px solid var(--gold); color: var(--gold);
  background: transparent; border-radius: var(--radius);
  transition: background .3s ease, color .3s ease, border-color .3s ease;
}
.btn:hover { background: var(--gold); color: var(--on-gold); }
.btn.btn-solid { background: var(--gold); color: var(--on-gold); font-weight: 600; }
.btn.btn-solid:hover { background: var(--gold-soft); border-color: var(--gold-soft); }
.btn.btn-ghost { border-color: rgba(243,241,236,.32); color: var(--on-dark); }
.btn.btn-ghost:hover { background: var(--offwhite); color: #14110a; border-color: var(--offwhite); }
.btn .arrow { transition: transform .25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

.link-arrow {
  font-family: var(--font-ui); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--gold); display: inline-flex; align-items: center; gap: .55rem;
}
.link-arrow .arrow { transition: transform .25s ease; }
.link-arrow:hover { color: var(--gold-soft); }
.link-arrow:hover .arrow { transform: translateX(4px); }

/* ----- Hero ----- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center;
  padding-top: var(--header-h); overflow: hidden; background: var(--black);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image: url("/assets/img/skyline.webp");
  background-size: cover; background-position: 60% center;
}
.hero-bg::after { /* escurece para leitura, com calor dourado no canto */
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,.96) 0%, rgba(0,0,0,.82) 38%, rgba(0,0,0,.45) 70%, rgba(0,0,0,.6) 100%),
    linear-gradient(0deg, rgba(0,0,0,.9), transparent 45%);
}
.hero .container { position: relative; z-index: 2; }
.hero-inner { max-width: 800px; }
.hero h1 { margin-top: 1.5rem; }
.hero .lede { margin-top: 1.7rem; font-size: clamp(1.08rem, 1.6vw, 1.32rem); color: rgba(243,241,236,.78); max-width: 54ch; }
.hero-actions { margin-top: 2.8rem; display: flex; flex-wrap: wrap; gap: 1rem; }

/* Hero de páginas internas */
.page-hero {
  position: relative; overflow: hidden; background: var(--black);
  padding-top: calc(var(--header-h) + clamp(3.5rem, 8vw, 7rem));
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}
.page-hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image: url("/assets/img/skyline.webp");
  background-size: cover; background-position: center 30%; opacity: .9;
}
.page-hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.95) 0%, rgba(0,0,0,.78) 50%, rgba(0,0,0,.5) 100%),
              linear-gradient(0deg, rgba(7,7,10,1), transparent 60%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { margin-top: 1.3rem; max-width: 20ch; }
.page-hero .lede { margin-top: 1.5rem; max-width: 60ch; font-size: clamp(1.04rem,1.5vw,1.22rem); color: rgba(243,241,236,.78); }

/* ----- Grades e cartões ----- */
.grid { display: grid; gap: clamp(1.4rem, 3vw, 2.4rem); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.measure { max-width: 62ch; }

.section-head { max-width: 740px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head .rule { margin-top: 1.4rem; margin-bottom: 0; }
.section-head.is-centered { margin-inline: auto; text-align: center; }
.section-head.is-centered .rule { margin-inline: auto; }

.card {
  background: var(--surface);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  padding: clamp(1.9rem, 3vw, 2.7rem);
  display: flex; flex-direction: column; gap: .9rem;
  transition: border-color .35s ease, transform .35s ease, background .35s ease;
  height: 100%;
}
.card:hover { border-color: rgba(198,161,91,.55); transform: translateY(-4px); background: var(--surface-2); }
.card .card-num { font-family: var(--font-display); color: var(--gold); font-size: 1.55rem; line-height: 1; }
.card h3 { color: var(--on-dark); }
.card p { margin: 0; }
.card .link-arrow { margin-top: auto; padding-top: .7rem; }

/* Lista de entregas com marcador dourado */
.feature-list { list-style: none; padding: 0; display: grid; gap: 1.5rem; }
.feature-list li { display: grid; grid-template-columns: auto 1fr; gap: 1.1rem; align-items: start; }
.feature-list .marker {
  font-family: var(--font-display); font-size: 1rem; color: var(--gold);
  border: 1px solid rgba(198,161,91,.45); border-radius: 50%;
  width: 40px; height: 40px; display: grid; place-items: center; margin-top: .1rem;
}
.feature-list h3 { font-size: 1.25rem; margin-bottom: .3rem; }
.feature-list p { margin: 0; }

/* Bloco texto + aside */
.split { display: grid; grid-template-columns: 1.12fr .88fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }

/* Painel de apoio — usa AZUL petróleo como cor de suporte */
.panel {
  border: 0; border-left: 2px solid var(--gold);
  padding: .4rem 0 .4rem clamp(1.5rem, 2.5vw, 2.1rem);
  background: transparent;
  border-radius: 0;
}
.panel .eyebrow { margin-bottom: 1.2rem; }
.panel ul { list-style: none; padding: 0; display: grid; gap: 1.05rem; }
.panel li { padding-left: 1.5rem; position: relative; color: var(--on-dark-soft); }
.panel li::before { content: ""; position: absolute; left: 0; top: .68em; width: 7px; height: 7px; background: var(--gold); transform: rotate(45deg); }

/* Citação / destaque editorial */
.statement { font-family: var(--font-display); font-size: clamp(1.7rem, 3.6vw, 2.8rem); line-height: 1.28; max-width: 22ch; }
.statement.is-centered { margin-inline: auto; }

/* Faixa CTA com skyline ao fundo */
.cta-band { position: relative; overflow: hidden; text-align: center; background: var(--black); }
.cta-band-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image: url("/assets/img/skyline-flip.webp");
  background-size: cover; background-position: center;
}
.cta-band-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.82), rgba(0,0,0,.9)); }
.cta-band .container { position: relative; z-index: 2; }
.cta-band h2 { max-width: 20ch; margin-inline: auto; }
.cta-band p { max-width: 54ch; margin: 1.3rem auto 0; }
.cta-band .hero-actions { justify-content: center; margin-top: 2.4rem; }

/* Placeholder visível */
.placeholder {
  font-family: var(--font-ui); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--gold); border: 1px dashed rgba(198,161,91,.5);
  padding: .2rem .55rem; border-radius: var(--radius); display: inline-block; align-self: flex-start;
}

/* ----- Faixa de imagem real (quebra de ritmo, mantém preto/dourado) ----- */
.image-band {
  position: relative; min-height: clamp(320px, 46vw, 540px);
  display: flex; align-items: center; overflow: hidden; background: var(--black);
}
.image-band-img {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
}
.img-villa { background-image: url("/assets/img/villa.webp"); }
.img-casa-noite { background-image: url("/assets/img/casa-noite.webp"); }
.image-band-img::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(7,7,10,.92) 0%, rgba(7,7,10,.6) 45%, rgba(7,7,10,.35) 100%),
    linear-gradient(0deg, rgba(7,7,10,.85), transparent 55%);
}
.image-band .container { position: relative; z-index: 2; }
.image-band .eyebrow { margin-bottom: 1.1rem; }
.image-band .statement { max-width: 18ch; }
.image-band .band-text { max-width: 30rem; }
.image-band .band-text p { margin-top: 1rem; max-width: 34ch; }

/* Variante: imagem ocupa o lado direito (mantém nitidez de fotos verticais) */
.image-band.band-right .image-band-img { left: auto; right: 0; width: 64%; }
.image-band.band-right .image-band-img::after {
  background:
    linear-gradient(90deg, var(--bg) 0%, rgba(7,7,10,.85) 16%, rgba(7,7,10,.2) 58%, transparent 100%),
    linear-gradient(0deg, rgba(7,7,10,.55), transparent 55%);
}

/* ----- Bloco imagem + texto ----- */
.media-split { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.media-split .media {
  position: relative; border: 1px solid var(--hair); border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4 / 5; background: var(--surface);
}
.media-split .media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.media-split .media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(7,7,10,.5), transparent 50%);
}

/* ----- Rodapé ----- */
.site-footer { position: relative; overflow: hidden; background: var(--black); padding-block: clamp(3.5rem, 6vw, 5rem) 2rem; border-top: 1px solid var(--hair); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); position: relative; z-index: 2; }
.footer-brand .lockup { --mark-h: 60px; margin-bottom: 1.4rem; }
.footer-brand p { max-width: 40ch; font-size: .98rem; }
.footer-col h4 { font-family: var(--font-ui); font-size: .74rem; letter-spacing: .22em; text-transform: uppercase; color: var(--gold); margin-bottom: 1.3rem; font-weight: 600; }
.footer-col ul { list-style: none; padding: 0; display: grid; gap: .75rem; }
.footer-col a, .footer-col span { color: var(--on-dark-soft); font-size: .96rem; transition: color .25s ease; }
.footer-col a:hover { color: var(--gold-soft); }
.footer-bottom {
  margin-top: clamp(2.5rem, 5vw, 4rem); padding-top: 1.6rem; border-top: 1px solid var(--hair-soft);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; position: relative; z-index: 2;
  font-family: var(--font-ui); font-size: .74rem; letter-spacing: .08em; color: rgba(243,241,236,.45);
}
.footer-bottom a:hover { color: var(--gold-soft); }

/* ----- Animação de entrada -----
   À prova de falha: o conteúdo nasce VISÍVEL. A animação só entra quando há JS
   (classe .js no <html>), então nada fica escondido se o script falhar. */
.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ==========================================================================
   Responsivo
   ========================================================================== */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 2.5rem; }
  .media-split { grid-template-columns: 1fr; gap: 2rem; }
  .media-split .media { aspect-ratio: 16 / 11; max-height: 420px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  :root { --header-h: 76px; }
  .lockup, .site-header.is-scrolled .lockup { --mark-h: 40px; }
  .footer-brand .lockup { --mark-h: 48px; }

  .nav-toggle { display: inline-block; }
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(82vw, 340px);
    flex-direction: column; align-items: flex-start; justify-content: center;
    gap: 1.8rem; padding: 2rem 2.4rem;
    background: #0a0a0c; border-left: 1px solid var(--hair);
    transform: translateX(100%); transition: transform .35s ease;
    box-shadow: -20px 0 60px rgba(0,0,0,.55);
  }
  .nav.is-open { transform: translateX(0); }
  .nav a { font-size: 1rem; }
  body.nav-open { overflow: hidden; }

  .nav-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(2px);
    opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease; z-index: 90;
  }
  .nav-backdrop.is-open { opacity: 1; visibility: visible; }

  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: 92vh; min-height: 92svh; }
  .hero-bg { background-position: 70% center; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  /* Celular baixa as versões leves das imagens (menos dados, mesma cena) */
  .hero-bg, .page-hero-bg { background-image: url("/assets/img/skyline-sm.webp"); }
  .cta-band-bg { background-image: url("/assets/img/skyline-flip-sm.webp"); }
  .img-villa { background-image: url("/assets/img/villa-sm.webp"); }
  .img-casa-noite { background-image: url("/assets/img/casa-noite-sm.webp"); }

  .image-band.band-right .image-band-img { left: 0; right: 0; width: 100%; }
  .image-band.band-right .image-band-img::after {
    background: linear-gradient(0deg, var(--bg) 6%, rgba(7,7,10,.78) 40%, rgba(7,7,10,.55) 100%);
  }
  .image-band { min-height: 420px; }
}

/* Telas bem estreitas (320px): a 40px o lockup ocupa 221px e sobram 13px até o
   botão do menu — folga insuficiente. Reduz o conjunto mantendo a assinatura. */
@media (max-width: 400px) {
  .lockup, .site-header.is-scrolled .lockup { --mark-h: 34px; }
}