:root {
  --bg: #0a0e17;
  --bg-2: #0f1523;
  --card: #131b2e;
  --borda: #1f2a44;
  --texto: #e6ebf5;
  --suave: #93a0bb;
  --laranja: #ff6a13;
  --laranja-2: #ff9a3c;
  --ciano: #22d3ee;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--texto);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Menu */
.menu {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 14, 23, .85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--borda);
}
.menu .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.menu img { height: 38px; width: auto; display: block; }
.menu nav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.menu nav a {
  padding: 8px 14px; border-radius: 8px; color: var(--suave); font-size: .95rem;
  transition: color .2s, background .2s;
}
.menu nav a:hover, .menu nav a.ativo { color: var(--texto); background: var(--card); }
.menu nav a.destaque { background: var(--laranja); color: #fff; font-weight: 600; }
.menu nav a.destaque:hover { background: var(--laranja-2); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--ciano); outline-offset: 2px; }

/* Hero */
.hero {
  position: relative; overflow: hidden; padding: 110px 0 96px;
  background:
    radial-gradient(700px 360px at 85% 0%, rgba(255, 106, 19, .22), transparent 60%),
    radial-gradient(600px 320px at 0% 100%, rgba(34, 211, 238, .12), transparent 60%),
    var(--bg);
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(var(--borda) 1px, transparent 1px),
    linear-gradient(90deg, var(--borda) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
}
.hero .container { position: relative; }
.etiqueta {
  display: inline-block; padding: 6px 14px; border: 1px solid var(--borda);
  border-radius: 999px; color: var(--ciano); font-size: .85rem; letter-spacing: .04em;
  background: rgba(34, 211, 238, .06); margin-bottom: 24px;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.6rem); line-height: 1.12; max-width: 820px; }
.grad {
  background: linear-gradient(90deg, var(--laranja), var(--laranja-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { color: var(--suave); font-size: 1.15rem; max-width: 680px; margin-top: 22px; }
.botoes { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }
.btn {
  padding: 13px 26px; border-radius: 10px; font-weight: 600; border: 1px solid var(--borda);
  transition: transform .15s, background .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn.primario { background: var(--laranja); border-color: var(--laranja); color: #fff; }
.btn.primario:hover { background: var(--laranja-2); }
.btn.secundario { background: var(--card); }

/* Seções */
section { padding: 84px 0; }
section.alt { background: var(--bg-2); border-top: 1px solid var(--borda); border-bottom: 1px solid var(--borda); }
.titulo-secao { margin-bottom: 44px; }
.titulo-secao small { color: var(--laranja); font-weight: 600; letter-spacing: .12em; text-transform: uppercase; font-size: .8rem; }
.titulo-secao h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); margin-top: 8px; }
.titulo-secao p { color: var(--suave); max-width: 720px; margin-top: 12px; }

.grade { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--borda); border-radius: 14px; padding: 26px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--laranja); transform: translateY(-3px); }
.card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.card p { color: var(--suave); font-size: .96rem; }
.icone {
  width: 44px; height: 44px; border-radius: 10px; margin-bottom: 16px;
  display: grid; place-items: center; font-size: 1.3rem;
  background: rgba(255, 106, 19, .12); color: var(--laranja);
}

/* Números */
.numeros { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin-top: 48px; }
.numero { border-left: 3px solid var(--laranja); padding-left: 16px; }
.numero strong { display: block; font-size: 2.1rem; }
.numero span { color: var(--suave); font-size: .92rem; }

/* Linha do tempo */
.tempo { position: relative; margin-left: 10px; padding-left: 34px; border-left: 2px solid var(--borda); }
.marco { position: relative; margin-bottom: 34px; }
.marco::before {
  content: ""; position: absolute; left: -43px; top: 6px; width: 16px; height: 16px;
  border-radius: 50%; background: var(--bg); border: 3px solid var(--laranja);
}
.marco .ano { color: var(--ciano); font-weight: 600; font-size: .9rem; letter-spacing: .04em; }
.marco h3 { margin: 4px 0 6px; font-size: 1.15rem; }
.marco p { color: var(--suave); }

/* Tecnologias */
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.tag {
  padding: 6px 14px; border-radius: 999px; font-size: .86rem;
  background: var(--bg); border: 1px solid var(--borda); color: var(--texto);
}
.grupo-tec h3 { font-size: 1rem; color: var(--laranja-2); }

/* Contato */
.contato { text-align: center; }
.contato .botoes { justify-content: center; }

footer { border-top: 1px solid var(--borda); padding: 30px 0; color: var(--suave); font-size: .9rem; }
footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer a:hover { color: var(--laranja); }

@media (max-width: 640px) {
  .menu .container { height: auto; padding-top: 10px; padding-bottom: 10px; flex-direction: column; gap: 8px; }
  .hero { padding: 70px 0 64px; }
  section { padding: 60px 0; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

/* Diagramas */
.diagrama {
  background: var(--card); border: 1px solid var(--borda); border-radius: 14px;
  padding: 22px; margin: 0;
}
.diagrama svg { width: 100%; height: auto; display: block; }
.diagrama figcaption { color: var(--suave); font-size: .9rem; margin-top: 12px; text-align: center; }
.duas-colunas { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.btn.desativado { opacity: .55; cursor: not-allowed; }
.btn.desativado:hover { transform: none; }
@media (max-width: 640px) {
  .diagrama svg[viewBox^="0 0 920"] { min-width: 640px; }
  .diagrama:has(svg[viewBox^="0 0 920"]) { overflow-x: auto; }
}

/* Logomarca do aplicativo */
.logo-app { display: block; max-width: 100%; height: auto; margin: -20px 0 8px -24px; }
.logo-app.centro { margin: 0 auto 12px; }

/* Formulário de contato */
.form-contato {
  max-width: 620px; margin: 0 auto; text-align: left;
  background: var(--card); border: 1px solid var(--borda); border-radius: 14px; padding: 28px;
  display: grid; gap: 8px;
}
.form-contato label { font-size: .9rem; color: var(--suave); margin-top: 8px; }
.form-contato input, .form-contato textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--borda);
  background: var(--bg); color: var(--texto); font: inherit;
}
.form-contato input:focus, .form-contato textarea:focus { outline: 2px solid var(--ciano); border-color: transparent; }
.form-contato textarea { resize: vertical; }
.form-contato button { margin-top: 18px; cursor: pointer; font: inherit; font-weight: 600; }
.form-contato button:disabled { opacity: .6; cursor: wait; }
.isca { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.status-form { min-height: 1.4em; font-size: .95rem; margin-top: 6px; }
.status-form.ok { color: var(--ciano); }
.status-form.erro { color: #ff6b6b; }