/* =========================================================
   VERTX Engenharia — paleta extraída do logotipo
   Grafite (fundo) · Dourado (marca) · Verde (brilho/acento)
   ========================================================= */
:root {
  --bg: #16191d;           /* grafite do logo */
  --bg-alt: #1c2025;
  --surface: #22272d;
  --line: rgba(230,200,110, .16);

  --gold: #e6c86e;
  --gold-light: #f9eaa0;
  --gold-dark: #b19a5b;
  --gold-grad: linear-gradient(135deg, #fbf2ac 0%, #e6c86e 45%, #b19a5b 100%);

  --green: #2ee07e;
  --green-soft: rgba(46, 224, 126, .18);

  --text: #e9e6df;
  --muted: #a3a29d;

  --radius: 14px;
  --shadow: 0 20px 50px rgba(0, 0, 0, .35);
  --container: 1180px;
  --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  font-family: "Montserrat", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5 { margin: 0 0 .6em; line-height: 1.2; font-weight: 600; }
p { margin: 0 0 1em; }
svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.container { width: min(var(--container), 100% - 32px); margin-inline: auto; }
.text-gold {
  background: var(--gold-grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .78rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: ""; width: 28px; height: 1px; background: var(--gold);
  box-shadow: 0 0 8px var(--green);
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 28px; border-radius: 999px;
  font: 600 .92rem/1 "Montserrat", sans-serif; letter-spacing: .04em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s, box-shadow .25s, background .25s, color .25s;
}
.btn--gold { background: var(--gold-grad); color: #15181c; }
.btn--gold:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(230,200,110,.3), 0 0 0 1px var(--green-soft); }
.btn--ghost { border-color: var(--gold); color: var(--gold-light); }
.btn--ghost:hover { background: rgba(230,200,110,.1); }
.btn--sm { padding: 10px 20px; font-size: .85rem; }
.btn--block { width: 100%; }

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: 50;
  height: var(--header-h);
  transition: background .3s, box-shadow .3s;
}
.header.is-scrolled {
  background: rgba(22, 25, 29, .92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line);
}
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 46px; height: auto;
}
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__text strong {
  font-size: 1.3rem; letter-spacing: .14em; font-weight: 500;
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand__text small { font-size: .58rem; letter-spacing: .32em; color: var(--gold); margin-top: 4px; }

.nav { display: flex; align-items: center; gap: 30px; }
.nav a:not(.btn) { font-size: .9rem; font-weight: 500; color: var(--muted); position: relative; transition: color .2s; }
.nav a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 1px;
  background: var(--gold); transition: width .25s;
}
.nav a:not(.btn):hover { color: var(--gold-light); }
.nav a:not(.btn):hover::after { width: 100%; }

.menu-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--gold); margin: 5px 0; transition: transform .3s, opacity .3s; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: calc(var(--header-h) + 40px) 0 80px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 75% 45%, rgba(46,224,126,.07), transparent 70%),
    radial-gradient(ellipse 80% 60% at 20% 100%, rgba(230,200,110,.06), transparent 70%),
    var(--bg);
}
.hero__grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(230,200,110,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230,200,110,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 30%, transparent 80%);
          mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 30%, transparent 80%);
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 48px; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 600; letter-spacing: -.01em; }
.hero__lead { font-size: 1.08rem; color: var(--muted); max-width: 540px; margin-bottom: 34px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__visual { position: relative; display: grid; place-items: center; }
.hero__glow {
  position: absolute; width: 60%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(46,224,126,.22), transparent 65%);
  filter: blur(30px); animation: pulse 5s ease-in-out infinite;
}
.hero__art { position: relative; width: min(560px, 100%); height: auto; overflow: visible; stroke: none; fill: none; }
.hero__art .draw { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 2.4s cubic-bezier(.6,.1,.3,1) forwards; }
.hero__art .draw:nth-of-type(2) { animation-delay: .2s; }
.hero__art .draw:nth-of-type(3) { animation-delay: .5s; }
.hero__art .draw:nth-of-type(4) { animation-delay: .8s; }
.hero__art .draw:nth-of-type(5) { animation-delay: 1.1s; }
.hero__art .windows { animation: fadeIn 1s ease 1.4s both; }
.hero__art .windows .lit { fill: rgba(46,224,126,.16); stroke: #2ee07e; }
.hero__art .pulse { animation: pulse 3s ease-in-out infinite; transform-origin: 340px 166px; }
.hero__art .axes { animation: fadeIn 1.2s ease .2s both; }
.hero__art .level, .hero__art .dims { animation: fadeIn 1s ease 2s both; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fadeIn { from { opacity: 0; } }.hero__scroll {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  width: 26px; height: 42px; border: 1.5px solid var(--gold); border-radius: 20px;
}
.hero__scroll span {
  position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px;
  background: var(--green); border-radius: 2px; box-shadow: 0 0 8px var(--green);
  animation: scroll 1.8s infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes pulse { 0%,100% { opacity: .7; transform: scale(1); } 50% { opacity: 1; transform: scale(1.08); } }
@keyframes scroll { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 0; transform: translateY(14px); } }

/* ---------- Seções ---------- */
.section { padding: 110px 0; position: relative; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
.section__head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section__head .eyebrow::after { content: ""; width: 28px; height: 1px; background: var(--gold); box-shadow: 0 0 8px var(--green); }
.section__head p { color: var(--muted); }

/* Sobre */
.about { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: center; }
.about__text p { color: var(--muted); font-size: 1.03rem; }
.about__text strong { color: var(--gold-light); font-weight: 600; }
.about__pillars { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.about__pillars li {
  display: flex; gap: 18px; padding: 22px 24px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .25s, transform .25s;
}
.about__pillars li:hover { border-color: var(--gold); transform: translateX(6px); }
.about__pillars h3 { font-size: 1.05rem; color: var(--gold-light); margin-bottom: 4px; }
.about__pillars p { margin: 0; font-size: .93rem; color: var(--muted); }
.pillar__icon, .card__icon {
  flex-shrink: 0; width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center; color: var(--gold);
  background: linear-gradient(145deg, rgba(230,200,110,.16), rgba(230,200,110,.04));
  border: 1px solid var(--line);
}

/* Serviços */
.group-title {
  font-size: .85rem; letter-spacing: .2em; text-transform: uppercase; color: var(--gold);
  display: flex; align-items: center; gap: 16px; margin: 0 0 24px;
}
.group-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 56px; }
.cards:last-child { margin-bottom: 0; }
/* Card — hover refinado: luz que segue o cursor, cantos de "vértice",
   ícone redesenhado e elevação suave. Tudo discreto e com transições lentas. */
.card {
  --ease: cubic-bezier(.2, .8, .2, 1);
  position: relative; padding: 30px 28px; overflow: hidden; isolation: isolate;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .5s var(--ease), border-color .5s var(--ease), box-shadow .5s var(--ease);
}
.card.reveal { transition: opacity .7s ease, transform .5s var(--ease), border-color .5s var(--ease), box-shadow .5s var(--ease); }
.card > * { position: relative; z-index: 1; }
/* filete dourado no topo */
.card::before {
  content: ""; position: absolute; inset: 0 0 auto; height: 2px; z-index: 2;
  background: var(--gold-grad); transform: scaleX(0); transform-origin: left;
  transition: transform .6s var(--ease);
}
/* luz suave que acompanha o mouse */
.card::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(260px circle at var(--mx, 50%) var(--my, 0%), rgba(230,200,110,.09), transparent 65%),
    radial-gradient(160px circle at var(--mx, 50%) var(--my, 0%), rgba(46,224,126,.05), transparent 70%);
  opacity: 0; transition: opacity .5s var(--ease);
}
/* marcas de canto (vértices), inseridas via JS */
.card > .card__corners {
  position: absolute; inset: 14px; z-index: 1; pointer-events: none; opacity: 0;
  --c: rgba(230,200,110,.55); --l: 12px;
  background:
    linear-gradient(var(--c), var(--c)) top left / var(--l) 1px,
    linear-gradient(var(--c), var(--c)) top left / 1px var(--l),
    linear-gradient(var(--c), var(--c)) top right / var(--l) 1px,
    linear-gradient(var(--c), var(--c)) top right / 1px var(--l),
    linear-gradient(var(--c), var(--c)) bottom left / var(--l) 1px,
    linear-gradient(var(--c), var(--c)) bottom left / 1px var(--l),
    linear-gradient(var(--green), var(--green)) bottom right / var(--l) 1px,
    linear-gradient(var(--green), var(--green)) bottom right / 1px var(--l);
  background-repeat: no-repeat;
  transition: inset .6s var(--ease), opacity .5s var(--ease);
}
.card .card__icon { margin-bottom: 20px; transition: color .5s var(--ease), box-shadow .5s var(--ease), border-color .5s var(--ease), transform .5s var(--ease); }
.card h4 { font-size: 1.12rem; color: var(--text); transition: color .5s var(--ease); }

@media (hover: hover) {
  .card:hover {
    transform: translateY(-4px);
    border-color: rgba(230,200,110,.35);
    box-shadow: 0 24px 48px -18px rgba(0,0,0,.6), 0 0 0 1px rgba(230,200,110,.06), 0 0 50px -20px var(--green-soft);
  }
  .card:hover::before { transform: scaleX(1); }
  .card:hover::after { opacity: 1; }
  .card:hover > .card__corners { inset: 8px; opacity: 1; }
  .card:hover h4 { color: var(--gold-light); }
  .card:hover .card__icon {
    color: var(--green); border-color: var(--green-soft); transform: translateY(-2px);
    box-shadow: 0 0 18px var(--green-soft);
  }
  /* o traço do ícone é redesenhado uma vez ao entrar */
  .card:hover .card__icon svg > * { stroke-dasharray: 1; animation: iconDraw .9s var(--ease) both; }
}
/* Pilares (Quem somos): mesmo efeito de ícone dos cards, sem a luz */
.about__pillars .pillar__icon { transition: color .5s cubic-bezier(.2,.8,.2,1), box-shadow .5s cubic-bezier(.2,.8,.2,1), border-color .5s cubic-bezier(.2,.8,.2,1), transform .5s cubic-bezier(.2,.8,.2,1); }
@media (hover: hover) {
  .about__pillars li:hover .pillar__icon {
    color: var(--green); border-color: var(--green-soft); transform: translateY(-2px);
    box-shadow: 0 0 18px var(--green-soft);
  }
  .about__pillars li:hover .pillar__icon svg > * { stroke-dasharray: 1; animation: iconDraw .9s cubic-bezier(.2,.8,.2,1) both; }
}
@keyframes iconDraw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .card, .card *, .card::before, .card::after, .pillar__icon, .pillar__icon * { transition: none !important; animation: none !important; }
  .card:hover { transform: none; }
}
.card p { margin: 0; color: var(--muted); font-size: .94rem; }
.card p + p { margin-top: .6em; }
.card--feature { background: linear-gradient(160deg, #262b31, var(--surface)); }

/* Processo */
.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative;
}
.steps::before {
  content: ""; position: absolute; top: 28px; left: 12%; right: 12%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), var(--green), var(--gold), transparent);
  opacity: .5;
}
.step { text-align: center; position: relative; }
.step__num {
  display: inline-grid; place-items: center; width: 56px; height: 56px; margin-bottom: 20px;
  border-radius: 50%; border: 1px solid var(--gold); background: var(--bg);
  font-weight: 600; color: var(--gold-light); position: relative; z-index: 1;
  transition: box-shadow .3s, border-color .3s, color .3s;
}
.step:hover .step__num { border-color: var(--green); color: var(--green); box-shadow: 0 0 22px var(--green-soft); }
.step h4 { font-size: 1.1rem; }
.step p { color: var(--muted); font-size: .93rem; max-width: 240px; margin-inline: auto; }

/* Diferenciais */
.diff { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.diff__logo {
  position: relative; border-radius: 20px; overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.diff__logo {
  padding: 48px;
  background: radial-gradient(circle at 50% 38%, rgba(46,224,126,.10), transparent 60%), var(--bg);
}
.diff__logo img { width: 100%; }
.checklist { list-style: none; margin: 0 0 34px; padding: 0; display: grid; gap: 14px; }
.checklist li { position: relative; padding-left: 34px; color: var(--muted); }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%;
  border: 1px solid var(--gold);
  background: radial-gradient(circle, var(--green) 0 3px, transparent 4px);
  box-shadow: 0 0 10px var(--green-soft);
}

/* Contato */
.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.contact__info p { color: var(--muted); }
.contact__list { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 16px; }
.contact__list li { display: flex; align-items: center; gap: 14px; }
.contact__list svg { color: var(--gold); width: 22px; height: 22px; }
.contact__list a:hover { color: var(--gold-light); }
.wa-link { display: inline-flex; align-items: center; gap: 10px; }
.contact__list .wa-icon, .footer .wa-icon {
  width: 20px; height: 20px; fill: #25d366; stroke: none;
  transition: transform .4s cubic-bezier(.2,.8,.2,1), filter .4s;
}
.wa-link:hover .wa-icon { transform: scale(1.12); filter: drop-shadow(0 0 6px rgba(37,211,102,.5)); }

.form {
  background: var(--surface); border: 1px solid var(--line); border-radius: 20px;
  padding: 36px; display: grid; gap: 18px; box-shadow: var(--shadow);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form label { display: grid; gap: 8px; font-size: .82rem; font-weight: 500; letter-spacing: .04em; color: var(--muted); }
.form input, .form select, .form textarea {
  width: 100%; padding: 13px 15px; border-radius: 10px;
  background: var(--bg); border: 1px solid rgba(255,255,255,.08); color: var(--text);
  font: 400 .95rem "Montserrat", sans-serif; transition: border-color .2s, box-shadow .2s;
}
.form textarea { resize: vertical; }
.form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--gold) 50%), linear-gradient(-45deg, transparent 50%, var(--gold) 50%); background-position: calc(100% - 20px) 52%, calc(100% - 15px) 52%; background-size: 5px 5px; background-repeat: no-repeat; }
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(230,200,110,.15);
}
.form .is-invalid { border-color: #e0634e; }
.form__status { margin: 0; font-size: .88rem; min-height: 1.3em; color: var(--green); }
.form__status.is-error { color: #e0634e; }
.form__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form button[disabled] { opacity: .6; cursor: progress; transform: none; box-shadow: none; }

/* ---------- Rodapé ---------- */
.footer { background: #121417; border-top: 1px solid var(--line); }
.footer__inner {
  display: grid; grid-template-columns: 1.1fr 1fr 1fr 1fr; gap: 40px; padding: 70px 0 50px;
}
.footer__logo {
  width: 200px;
}
.footer h5 { font-size: .8rem; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: .9rem; color: var(--muted); }
.footer a:hover { color: var(--gold-light); }
.footer__bottom { border-top: 1px solid var(--line); padding: 22px 0; font-size: .82rem; color: var(--muted); text-align: center; }

/* ---------- Animações de entrada ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__glow, .hero__scroll span, .hero__art * { animation: none !important; }
  .hero__art .draw { stroke-dashoffset: 0; }
}

/* ---------- Responsivo ---------- */
@media (max-width: 1000px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cards--wide { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0; padding: 12px 16px 24px;
    background: rgba(22,25,29,.98); border-bottom: 1px solid var(--line);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity .25s, transform .25s, visibility .25s;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a:not(.btn) { padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .nav a:not(.btn)::after { display: none; }
  .nav .btn { margin-top: 18px; }
  .header:has(.nav.is-open) { background: rgba(22,25,29,.98); }

  .hero__inner, .about, .diff, .contact { grid-template-columns: 1fr; gap: 40px; }
  .hero { text-align: center; }
  .hero__lead { margin-inline: auto; }
  .hero__actions { justify-content: center; }
  .hero__visual { order: -1; }
  .hero__art { width: min(340px, 90%); }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .steps::before { display: none; }
  .diff__logo { max-width: 420px; margin-inline: auto; }
  .section { padding: 80px 0; }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .form { padding: 24px; }
  .form__row { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .hero__actions .btn { width: 100%; }
}