/* =========================================================
   HERO — primeira tela · JS: js/hero.js (texto e rolagem) e js/hero-cena.js (cena 3D)
   Uma cidade de servidores em 3D controlada pela rolagem: a câmera
   desliza sobre a cidade até o núcleo, o título "deita" no chão e a
   lista do processo assume o canto inferior esquerdo.
   As cores daqui são as da noite; a versão de dia está em css/tema-claro.css
   e a cena muda junto em js/hero-cena.js.
   Versão anterior (painel de vidro): versoes-antigas/hero-painel.*
   ========================================================= */

.font-inter { font-family: 'Inter', system-ui, sans-serif; }

/* unidade que escala com a tela (1u = 1px numa tela de 1440×960) */
#hero { --u: clamp(.82px, min(100vw / 1440, 100vh / 960), 1.6px); --hero-ink: #F5F0E8; --hero-bg: #07080a; }

/* a hero é uma "trilha" alta; a cena fica presa na tela enquanto se rola por ela */
#hero.city { position: relative; height: 420vh; padding: 0; color: var(--hero-ink); }
.city-scene { position: sticky; top: 0; height: 100vh; overflow: hidden; background: var(--hero-bg); }
.city-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; opacity: 0; transition: opacity .5s ease; }
.city-canvas.is-pronta { opacity: 1; }
.city-canvas.is-trocando { opacity: 0; transition: opacity .14s ease; }   /* troca de tema */
/* sem WebGL: um fundo escuro com brilho laranja no lugar da cena */
.city-scene.no-webgl { background: radial-gradient(ellipse at 60% 75%, rgba(229, 169, 99, .22), transparent 55%), var(--hero-bg); }
/* sombra leve em cima e embaixo para o texto ficar legível */
.city-shade {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(7, 8, 10, .55), rgba(7, 8, 10, 0) 34%),
    linear-gradient(to top, rgba(7, 8, 10, .55), rgba(7, 8, 10, 0) 30%);
}

/* ---------- título, texto e botões (deitam para trás conforme a rolagem) ---------- */
.city-stage {
  position: absolute; z-index: 2; left: 0; right: 0; top: calc(80 * var(--u) + 64px);
  perspective: calc(900 * var(--u)); pointer-events: none;
}
.city-copy { text-align: center; transform-origin: 50% 100%; will-change: transform, opacity; }
.city-tag {
  display: inline-flex; align-items: center; gap: .6rem; margin-bottom: calc(22 * var(--u));
  font-family: 'Inter', system-ui, sans-serif; font-size: calc(13 * var(--u)); letter-spacing: .3em; text-transform: uppercase;
  color: rgba(245, 240, 232, .7);
}
.city-tag svg { width: 16px; height: 16px; flex: 0 0 auto; color: #e5a963; }
.city-copy h1 {
  font-size: calc(112 * var(--u)); line-height: .94; letter-spacing: -.01em; font-weight: 400;
  text-transform: uppercase; color: var(--hero-ink); margin: 0;
  text-shadow: 0 4px 30px rgba(0, 0, 0, .45);
}
.city-copy p {
  margin: calc(26 * var(--u)) auto 0; font-family: 'Inter', system-ui, sans-serif;
  font-size: calc(22 * var(--u)); line-height: 1.5; color: rgba(245, 240, 232, .82);
  max-width: 52ch; text-wrap: balance; padding: 0 1rem;
  text-shadow: 0 2px 16px rgba(0, 0, 0, .6);
}
.city-copy p strong { color: var(--hero-ink); font-weight: 600; }

.city-ctas { margin-top: calc(32 * var(--u)); display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; pointer-events: auto; }
.vhero-btn {
  display: inline-flex; align-items: center; gap: .6rem;
  background: #000; color: #fff; text-decoration: none;
  padding: 1rem 1.75rem; font-family: 'Inter', system-ui, sans-serif; font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 500;
  border: 1px solid rgba(255, 255, 255, .14);
  transition: background-color .2s, border-color .2s;
}
.vhero-btn:hover { background: #171717; border-color: #e5a963; }
.vhero-btn svg { width: 16px; height: 16px; transition: transform .2s; }
.vhero-btn:hover svg { transform: translate(2px, -2px); }
.vhero-btn.ghost { background: rgba(7, 8, 10, .35); border-color: rgba(255, 255, 255, .3); }
.vhero-btn.ghost:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .6); }

/* ---------- números (embaixo dos botões; somem junto com o título) ---------- */
.city-stats {
  margin-top: calc(44 * var(--u)); display: flex; justify-content: center; gap: calc(56 * var(--u));
  font-family: 'Inter', system-ui, sans-serif;
}
.city-stats strong { display: block; color: var(--hero-ink); font-size: calc(34 * var(--u)); font-weight: 700; letter-spacing: -.025em; line-height: 1.1; text-shadow: 0 2px 16px rgba(0, 0, 0, .6); }
.city-stats span { display: block; color: rgba(245, 240, 232, .6); font-size: calc(11 * var(--u)); letter-spacing: .1em; text-transform: uppercase; margin-top: .25rem; }

/* ---------- convite para rolar (clicável: leva à primeira etapa) ---------- */
.city-cue {
  position: absolute; z-index: 2; left: 50%; bottom: calc(36 * var(--u)); transform: translateX(-50%);
  background: none; border: 0; cursor: pointer;
  font-family: var(--mono); font-size: calc(13.5 * var(--u)); font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase; color: var(--hero-ink); white-space: nowrap;
  padding: 8px 2px;
  transition: color .2s ease;
}
.city-cue:hover, .city-cue:focus-visible { color: #e5a963; }
.city-cue::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: rgba(255, 255, 255, .22);
}
.city-cue i { position: absolute; left: 0; bottom: 0; height: 1px; width: 100%; background: #e5a963; transform-origin: left; z-index: 1; }

/* ---------- lista do processo (canto inferior esquerdo) ---------- */
.city-steps {
  position: absolute; z-index: 2; left: calc(36 * var(--u)); bottom: calc(28 * var(--u));
  width: calc(540 * var(--u)); list-style: none; margin: 0; padding: 0;
  opacity: 0; pointer-events: none; font-family: 'Inter', system-ui, sans-serif;
}
.city-steps li { display: grid; grid-template-columns: calc(46 * var(--u)) 1fr; column-gap: calc(16 * var(--u)); padding: calc(5 * var(--u)) 0; }
/* cabeçalho da etapa é um botão: leva a rolagem até aquela etapa */
.cs-head {
  grid-column: 1 / -1; display: grid; grid-template-columns: subgrid; align-items: center;
  background: none; border: 0; padding: calc(4 * var(--u)) 0; color: inherit; font: inherit;
  text-align: left; cursor: pointer;
}
.cs-num {
  width: calc(46 * var(--u)); height: calc(46 * var(--u)); display: grid; place-items: center;
  border-radius: calc(10 * var(--u)); font-family: var(--mono); font-size: calc(14 * var(--u));
  color: rgba(245, 240, 232, .8); border: 1px solid rgba(255, 255, 255, .25);
  background: rgba(7, 8, 10, .35);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.cs-title {
  font-size: calc(15.5 * var(--u)); font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: rgba(245, 240, 232, .8); transition: color .2s ease;
  text-shadow: 0 2px 12px rgba(0, 0, 0, .6);
}
.cs-head:hover .cs-num, .cs-head:focus-visible .cs-num { border-color: #e5a963; color: #e5a963; }
.cs-head:hover .cs-title, .cs-head:focus-visible .cs-title { color: var(--hero-ink); }
.cs-head:focus-visible { outline: 1px solid #e5a963; outline-offset: 4px; border-radius: 6px; }
.cs-body { grid-column: 2; display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s var(--ease-out); }
.cs-body > div { overflow: hidden; }
.cs-body p {
  margin: calc(10 * var(--u)) 0 calc(6 * var(--u)); padding-left: calc(16 * var(--u));
  border-left: 1px solid rgba(255, 255, 255, .25);
  font-size: calc(17 * var(--u)); line-height: 1.55; color: rgba(245, 240, 232, .85);
  text-shadow: 0 2px 12px rgba(0, 0, 0, .6);
}
.city-steps li.is-active .cs-num { background: #e5a963; border-color: #e5a963; color: var(--hero-bg); }
.city-steps li.is-active .cs-title { font-size: calc(26 * var(--u)); color: var(--hero-ink); letter-spacing: .01em; text-transform: none; }
.city-steps li.is-active .cs-body { grid-template-rows: 1fr; }

/* ---------- entrada depois da tela de carregamento (pausada enquanto ela está aberta) ---------- */
@keyframes vhero-fade-up { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.animate-fade-up,
.animate-fade-up-delay-1,
.animate-fade-up-delay-2,
.animate-fade-up-delay-3,
.animate-fade-up-delay-4 { opacity: 0; animation: vhero-fade-up .45s var(--ease-out) forwards; }
.animate-fade-up-delay-1 { animation-delay: .06s; }
.animate-fade-up-delay-2 { animation-delay: .12s; }
.animate-fade-up-delay-3 { animation-delay: .18s; }
.animate-fade-up-delay-4 { animation-delay: .24s; }

/* ---------- telas menores ---------- */
@media (max-width: 760px) {
  #hero { --u: 1px; }
  .city-stage { top: 100px; padding: 0 18px; }
  .city-tag { font-size: 11px; letter-spacing: .22em; }
  .city-copy h1 { font-size: clamp(44px, 13vw, 60px); }
  .city-copy p { font-size: 16px; max-width: 34ch; padding: 0; }
  .city-ctas { margin-top: 22px; gap: .75rem; }
  .vhero-btn { padding: .85rem 1.25rem; font-size: .7rem; }
  .city-stats { margin-top: 26px; gap: 22px; }
  .city-stats strong { font-size: 24px; }
  .city-stats span { font-size: 9px; }
  .city-steps { left: 18px; right: 18px; width: auto; bottom: 22px; }
  .city-steps li.is-active .cs-title { font-size: 21px; }
  .cs-body p { font-size: 15px; }
  .city-cue { font-size: 11.5px; }
}
/* celular baixo: os números atrapalham o texto, então saem */
@media (max-width: 760px) and (max-height: 720px) { .city-stats { display: none; } }

@media (prefers-reduced-motion: reduce) {
  .cs-num, .cs-title, .cs-body { transition: none; }
  .animate-fade-up, .animate-fade-up-delay-1, .animate-fade-up-delay-2,
  .animate-fade-up-delay-3, .animate-fade-up-delay-4 { animation: none; opacity: 1; }
}