/* ============================================================
   SUDO — página "sobre" / "about"
   Conceito: a página é uma sessão de terminal. Cada seção é um
   comando executado e a resposta dele. Compartilhado por
   sobre.html e en/about.html: editar aqui vale para os dois.
   ============================================================ */

html{scroll-snap-type:y proximity;scroll-padding-top:0}
body{background:var(--ink);color:#e7e8eb}

/* fundo 3D: nuvem de partículas que muda de forma a cada seção */
#about-canvas{
  position:fixed;inset:0;width:100%;height:100%;z-index:0;
  display:block;pointer-events:none;
}
/* véu que mantém o texto legível por cima das partículas */
.term::before{
  content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(120% 75% at 18% 50%, rgba(19,20,23,.94) 0%, rgba(19,20,23,.72) 42%, rgba(19,20,23,0) 78%),
    linear-gradient(180deg, rgba(19,20,23,.85) 0%, rgba(19,20,23,0) 22%, rgba(19,20,23,0) 78%, rgba(19,20,23,.85) 100%);
}

/* rolagem por seções */
.term{position:relative}
.term-sec{
  position:relative;z-index:1;
  min-height:100svh;display:flex;align-items:center;
  scroll-snap-align:center;
  padding:120px var(--pad) 96px;
}
.term-inner{position:relative;width:100%;max-width:var(--max);margin:0 auto}

/* numeração da seção, no canto */
.sec-n{
  position:absolute;top:96px;right:var(--pad);z-index:2;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  color:#4d5058;
}
.sec-n b{color:var(--accent-lite);font-weight:500}
@media(max-width:860px){.sec-n{top:88px}}

/* linha de comando */
.prompt{
  font-family:var(--font-mono);font-size:clamp(13px,1.45vw,16px);
  color:var(--accent-lite);margin-bottom:clamp(22px,3vw,34px);
  display:flex;flex-wrap:wrap;align-items:baseline;gap:9px;
}
.prompt .host{color:#6e7077}
.prompt .cmd-txt{white-space:pre-wrap}
.caret{
  display:inline-block;width:9px;height:1.05em;background:var(--accent-lite);
  vertical-align:text-bottom;animation:term-blink 1s steps(1) infinite;
}
.term-sec.done .caret{opacity:.35}
@keyframes term-blink{50%{opacity:0}}

/* saída do comando */
.out{
  opacity:0;transform:translateY(16px);
  transition:opacity .55s ease var(--d,0s),transform .55s cubic-bezier(.2,.7,.2,1) var(--d,0s);
}
.term-sec.on .out{opacity:1;transform:none}

.term-sec h1,.term-sec h2{
  font-family:var(--font-display);font-variation-settings:'wdth' 118;font-weight:800;
  text-transform:uppercase;letter-spacing:-.02em;line-height:1.02;
  font-size:clamp(34px,6vw,74px);color:#fff;margin-bottom:24px;
}
.term-sec h1 em,.term-sec h2 em{font-style:normal;color:var(--accent-lite)}
.term-sec p{
  max-width:62ch;color:#b9bbc1;font-size:clamp(16px,1.5vw,19px);
  line-height:1.65;margin-bottom:18px;
}
.term-sec p strong{color:#fff;font-weight:600}
.term-sec code{
  font-family:var(--font-mono);font-size:.9em;color:var(--accent-lite);
  background:rgba(0,0,255,.14);border:1px solid rgba(107,107,255,.28);
  border-radius:3px;padding:1px 6px;
}

/* saída em formato de lista de comandos permitidos (sudo -l) */
.term-list{list-style:none;margin-top:8px;max-width:900px}
.term-list li{
  display:grid;grid-template-columns:180px 1fr;gap:20px;
  padding:16px 0;border-top:1px dashed rgba(107,107,255,.28);
}
.term-list li:last-child{border-bottom:1px dashed rgba(107,107,255,.28)}
.term-list b{
  font-family:var(--font-mono);font-size:13px;font-weight:500;
  color:var(--accent-lite);letter-spacing:.04em;
}
.term-list span{color:#b9bbc1;font-size:clamp(15px,1.4vw,17px);line-height:1.6}
@media(max-width:640px){.term-list li{grid-template-columns:1fr;gap:6px}}

/* saída em formato de tabela de processos (ps aux) */
.ps{width:100%;max-width:920px;border-collapse:collapse;font-family:var(--font-mono);font-size:clamp(12px,1.25vw,14px)}
.ps th{
  text-align:left;padding:0 16px 12px 0;color:#6e7077;font-weight:400;
  text-transform:uppercase;letter-spacing:.09em;font-size:11px;
  border-bottom:1px solid var(--line-dark);
}
.ps td{padding:14px 16px 14px 0;border-bottom:1px solid rgba(46,48,56,.6);color:#b9bbc1;vertical-align:top}
.ps td:first-child{color:#fff}
.ps a{color:#fff;text-decoration:none;border-bottom:1px solid rgba(107,107,255,.5)}
.ps a:hover{color:var(--accent-lite)}
.st{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.st::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--accent-lite)}
.st.run::before{background:#3DDC97}
.st.build::before{background:#FFB74D}
.st.idle::before{background:var(--accent-lite);animation:st-pulse 1.8s ease-in-out infinite}
@keyframes st-pulse{50%{opacity:.25}}
/* última linha: o convite */
.ps-next td{border-bottom:none;border-top:1px dashed rgba(107,107,255,.5);padding-top:18px}
.ps-next td:first-child a{border-bottom:1px dashed rgba(107,107,255,.6);color:var(--accent-lite)}
.ps-next td:first-child a:hover{color:#fff}
@media(max-width:700px){.ps .col-desc{display:none}}

/* ações finais */
.term-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.term-meta{
  margin-top:38px;font-family:var(--font-mono);font-size:13px;color:#6e7077;
  display:flex;gap:26px;flex-wrap:wrap;
}
.term-meta a{color:#9a9ca3;text-decoration:none}
.term-meta a:hover{color:var(--accent-lite)}

/* trilho de progresso lateral */
.rail{
  position:fixed;right:clamp(14px,2.4vw,30px);top:50%;transform:translateY(-50%);
  z-index:40;display:flex;flex-direction:column;gap:14px;
}
.rail button{
  display:block;width:10px;height:10px;padding:0;cursor:pointer;
  border:1px solid #3a3c44;border-radius:50%;background:none;
  transition:background .2s,border-color .2s,transform .2s;
}
.rail button:hover{border-color:var(--accent-lite)}
.rail button[aria-current="true"]{background:var(--accent-lite);border-color:var(--accent-lite);transform:scale(1.35)}
@media(max-width:860px){.rail{display:none}}

/* dica de rolagem, só na primeira seção */
.scroll-hint{
  position:absolute;left:var(--pad);bottom:38px;
  font-family:var(--font-mono);font-size:12px;color:#5d6068;
  display:flex;align-items:center;gap:10px;
}
.scroll-hint::after{content:'';width:34px;height:1px;background:#3a3c44}

@media (prefers-reduced-motion:reduce){
  html{scroll-snap-type:none}
  .out{opacity:1;transform:none;transition:none}
  .caret{animation:none}
}