/* variaveis */
:root{
  --bg:#0A0A0B;
  --fg:#E8E8E6;
  --accent:#1EC8E0;
  --body:#D4D4D0;
  --soft:#B8B8B4;
  --muted:#8A8A8E;
  --dim:#7B7B7F;
  --sep:#3A3A3E;
  --line:#1E1E21;
  --line-strong:#2A2A2E;
  --ease:cubic-bezier(.4,0,.2,1);
  --sans:'Space Grotesk',sans-serif;
  --mono:'JetBrains Mono',monospace;
}

/* base */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  min-height:100dvh; /* 100vh conta a barra de url do mobile e faz a secao saltar */
  background:var(--bg);
  color:var(--fg);
  font-family:var(--sans);
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--accent);color:var(--bg)}

/* barra de rolagem no tom do resto, em vez da cinza do sistema */
html{scrollbar-width:thin;scrollbar-color:var(--line-strong) var(--bg)}
::-webkit-scrollbar{width:12px;height:12px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{
  background:var(--line-strong);
  border:3px solid var(--bg);
  border-radius:8px;
}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}

a{color:var(--fg);text-decoration:none}
a:hover{color:var(--accent)}

/* o anel padrao do navegador some num fundo quase preto */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

/* atalho pro conteudo, so aparece pra quem chega nele pelo teclado */
.skip{
  position:absolute;left:16px;top:-64px;z-index:30;
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;
  background:var(--bg);color:var(--fg);
  border:1px solid var(--line-strong);border-radius:4px;padding:10px 14px;
  transition:top .2s var(--ease);
}
.skip:focus{top:16px}

/* a topbar e fixa, entao o alvo do skip precisa parar abaixo dela */
#content{scroll-margin-top:80px}

/* reveal no scroll */
[data-reveal]{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .45s var(--ease),transform .45s var(--ease);
}
.rv-on{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
}

/* barra fixa */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:20;
  display:flex;justify-content:space-between;align-items:center;
  padding:20px 32px;
  background:linear-gradient(#0A0A0B 40%,rgba(10,10,11,0));
}
.brand{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.08em}
.lang{display:flex;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.1em}
.lang-sep{color:var(--sep)}
.lang-btn{
  padding:2px 4px;
  font-family:inherit;font-size:inherit;letter-spacing:inherit;
  color:var(--dim);
  transition:color .2s var(--ease);
}
a.lang-btn:hover{color:var(--fg)}
.lang-btn.is-active{color:var(--fg);font-weight:500}

/* 01 hero */
.hero{position:relative;min-height:100vh;min-height:100dvh;display:flex;align-items:center}
.hero-canvas{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-canvas canvas{position:absolute;inset:0;width:100%;height:100%}
.hero-inner{
  position:relative;z-index:1;width:100%;max-width:1160px;
  margin:0 auto;padding:120px 32px 96px;
}
.kicker{
  font-family:var(--mono);font-size:13px;color:var(--accent);
  letter-spacing:.12em;margin:0 0 20px;
}
.hero h1{
  font-size:clamp(56px,10vw,128px);font-weight:700;line-height:.98;
  letter-spacing:-.03em;margin:0 0 28px;text-wrap:balance;
}
.hero-line{
  font-size:clamp(20px,2.4vw,28px);font-weight:400;color:var(--soft);
  margin:0 0 36px;max-width:640px;line-height:1.35;text-wrap:pretty;
}
.hero-meta{
  font-family:var(--mono);font-size:13px;color:var(--muted);
  margin:0;letter-spacing:.04em;
}

/* estrutura das secoes */
.section{max-width:1160px;margin:0 auto;padding:140px 32px 0}
.section:last-of-type{padding-bottom:120px}
.section-row{
  border-top:1px solid var(--line);padding-top:32px;
  display:flex;flex-wrap:wrap;gap:48px;
}
.section-label{
  flex:0 0 200px;font-family:var(--mono);font-size:13px;font-weight:400;
  color:var(--muted);letter-spacing:.1em;margin:0;
}
.section-body{flex:1 1 520px}

/* 02 sobre */
.about-grid{display:flex;flex-wrap:wrap;gap:48px;align-items:flex-start}
.portrait{display:block;flex:0 0 auto}
.portrait img{
  display:block;width:200px;height:200px;object-fit:cover;
  border-radius:6px;border:1px solid var(--line-strong);
  filter:grayscale(1);transition:filter .3s var(--ease);
}
.portrait:hover img{filter:grayscale(0)}
.about-text{flex:1 1 320px}
.about-body{
  font-size:19px;line-height:1.65;color:var(--body);
  margin:0;max-width:560px;text-wrap:pretty;
}
.about-meta{
  font-family:var(--mono);font-size:13px;color:var(--muted);
  margin:28px 0 0;letter-spacing:.04em;
}

/* 03 projetos */
.projects{display:grid;grid-template-columns:1fr;gap:20px}
.project{
  border:1px solid var(--line);border-radius:6px;padding:32px;
  transition:border-color .2s var(--ease);
}
.project:hover{border-color:var(--accent)}
.project-head{
  display:flex;justify-content:space-between;align-items:baseline;
  gap:16px;flex-wrap:wrap;
}
.project-head h3{font-size:22px;font-weight:700;margin:0;letter-spacing:-.01em}
.project-status{
  font-family:var(--mono);font-size:11px;color:var(--accent);
  letter-spacing:.12em;text-transform:uppercase;
}
.project-desc{
  font-size:16px;line-height:1.6;color:var(--soft);
  margin:14px 0 22px;max-width:640px;text-wrap:pretty;
}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-family:var(--mono);font-size:12px;color:var(--muted);
  border:1px solid var(--line-strong);border-radius:4px;
  padding:4px 10px;letter-spacing:.03em;
}

/* 04 stack */
.stack{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:40px 32px;
}
.stack h3{
  font-family:var(--mono);font-size:12px;font-weight:500;color:var(--muted);
  letter-spacing:.12em;text-transform:uppercase;margin:0 0 16px;
}
.stack ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.stack li{font-size:17px;color:var(--body)}

/* 05 contato */
.contact-line{
  font-size:19px;color:var(--soft);margin:0 0 28px;
  max-width:520px;line-height:1.6;text-wrap:pretty;
}
.contact-mail{
  display:inline-block;font-size:clamp(24px,4vw,44px);font-weight:700;
  letter-spacing:-.02em;border-bottom:1px solid var(--line-strong);
  padding-bottom:6px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.contact-mail:hover{border-color:var(--accent)}
.contact-links{
  display:flex;gap:28px;margin-top:40px;
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;
}
.contact-links a{color:var(--muted);transition:color .2s var(--ease)}

/* rodape */
.footer{max-width:1160px;margin:0 auto;padding:0 32px 40px}
.footer p{
  font-family:var(--mono);font-size:12px;color:var(--dim);
  margin:0;letter-spacing:.06em;
}

/* 404 */
.notfound{
  display:flex;flex-direction:column;justify-content:center;
  min-height:100vh;min-height:100dvh;padding:96px 32px;
}
.notfound main{width:100%;max-width:1160px;margin:0 auto}
.notfound h1{
  font-size:clamp(56px,10vw,128px);font-weight:700;line-height:.98;
  letter-spacing:-.03em;margin:0 0 28px;
}
.notfound-line{
  font-size:clamp(20px,2.4vw,28px);color:var(--soft);
  margin:0 0 36px;max-width:640px;line-height:1.35;
}
.notfound-back{
  display:inline-block;font-family:var(--mono);font-size:13px;
  color:var(--muted);letter-spacing:.06em;
  border-bottom:1px solid var(--line-strong);padding-bottom:6px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.notfound-back:hover{border-color:var(--accent)}

/* telas estreitas: so o respiro lateral muda */
@media (max-width:600px){
  .topbar{padding:16px 20px}
  .hero-inner{padding:120px 20px 96px}
  .section{padding:100px 20px 0}
  .section:last-of-type{padding-bottom:96px}
  .footer{padding:0 20px 40px}
  .section-row{gap:32px}
  .about-grid{gap:32px}
  .project{padding:24px}
  .notfound{padding:96px 20px}
}