/* =========================================================
   Pedro Ryan — portfólio · direção "Signal"
   Blackout + âmbar como único acento
   ========================================================= */

:root{
  /* cores */
  --bg:        #060709;
  --bg-soft:   #0a0c10;
  --surface:   #0f1217;
  --surface-2: #141922;
  --border:    #212732;
  --border-2:  #2c333f;
  --text:      #edeff3;
  --muted:     #99a2b1;
  --faint:     #79828f;
  --accent:    #f6b23d;
  --accent-2:  #ffd37a;
  --accent-dim:rgba(246,178,61,.13);
  --accent-line:rgba(246,178,61,.35);

  /* tipografia */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace;

  /* layout */
  --wrap: 1120px;
  --pad: clamp(1.15rem, 4vw, 2.5rem);
  --radius: 14px;
  --radius-sm: 9px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset / base ---------- */
*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:1.02rem;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* textura sutil de fundo (grão + brilho âmbar no topo) */
body::before{
  content:""; position:fixed; inset:0; z-index:-2; pointer-events:none;
  background:
    radial-gradient(120% 80% at 85% -10%, rgba(246,178,61,.10), transparent 55%),
    radial-gradient(90% 60% at 10% 0%, rgba(246,178,61,.04), transparent 50%);
}
body::after{
  content:""; position:fixed; inset:0; z-index:-2; pointer-events:none; opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.022) 1px, transparent 1px);
  background-size:3px 3px;
}

img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
strong{ color:var(--text); font-weight:600; }
em{ color:var(--muted); }
::selection{ background:var(--accent); color:#1a1204; }

.svg-defs{ position:absolute; width:0; height:0; overflow:hidden; }
.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad); }
.ic{ width:1.15em; height:1.15em; flex:none; }
.dim{ color:var(--faint); }
.accent{ color:var(--accent); }

.skip-link{
  position:absolute; left:-999px; top:0; z-index:200;
  background:var(--accent); color:#160f02; padding:.6rem 1rem; border-radius:0 0 8px 0;
  font-family:var(--font-mono); font-size:.85rem;
}
.skip-link:focus{ left:0; }

:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:4px; }

/* ---------- barra de progresso ---------- */
.scroll-progress{
  position:fixed; top:0; left:0; height:2px; width:0;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  z-index:120; box-shadow:0 0 12px rgba(246,178,61,.6);
}

/* ---------- eyebrow (rótulos mono estilo requisição) ---------- */
.eyebrow{
  font-family:var(--font-mono); font-size:.82rem; font-weight:500;
  letter-spacing:.06em; color:var(--accent);
  margin-bottom:1.4rem; display:inline-flex; align-items:center; gap:.55rem;
}
.eyebrow::before{
  content:""; width:26px; height:1px; background:var(--accent-line);
}

/* =========================================================
   NAV
   ========================================================= */
.nav{
  position:sticky; top:0; z-index:100;
  backdrop-filter:blur(12px);
  background:rgba(6,7,9,.72);
  border-bottom:1px solid transparent;
  transition:border-color .3s, background .3s;
}
.nav.is-scrolled{ border-bottom-color:var(--border); background:rgba(6,7,9,.9); }
.nav__inner{ display:flex; align-items:center; justify-content:space-between; height:64px; }

.brand{ display:flex; align-items:center; gap:.6rem; font-family:var(--font-mono); }
.brand__mark{
  display:grid; place-items:center; width:30px; height:30px; border-radius:8px;
  background:var(--accent-dim); border:1px solid var(--accent-line);
  color:var(--accent); font-weight:700; font-size:.85rem;
}
.brand__name{ font-size:.95rem; font-weight:500; letter-spacing:-.01em; }

.nav__links{ display:flex; align-items:center; gap:.35rem; }
.nav__links a{
  font-family:var(--font-mono); font-size:.85rem; color:var(--muted);
  padding:.5rem .7rem; border-radius:7px; transition:color .2s, background .2s;
}
.nav__links a:hover{ color:var(--text); background:var(--surface); }
.nav__links a.is-active{ color:var(--accent); }
.nav__cv{
  display:inline-flex; align-items:center; gap:.4rem; margin-left:.4rem;
  color:var(--text)!important; border:1px solid var(--border-2);
}
.nav__cv:hover{ border-color:var(--accent); color:var(--accent)!important; background:transparent!important; }

.nav__toggle{
  display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer;
  padding:8px; border-radius:8px;
}
.nav__toggle span{ width:22px; height:2px; background:var(--text); border-radius:2px; transition:transform .3s,opacity .3s; }
.nav__toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero{ position:relative; min-height:100svh; display:flex; align-items:center; padding:6rem 0 4rem; }
.hero__bg{
  position:absolute; inset:0; z-index:-1; pointer-events:none;
  background:
    linear-gradient(180deg, transparent 60%, var(--bg) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.018) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0 1px, transparent 1px 88px);
  mask-image:radial-gradient(120% 90% at 30% 30%, #000 40%, transparent 80%);
}
.hero__inner{ display:block; }
.hero__text{ max-width:820px; }

.hero__title{
  font-family:var(--font-display); font-weight:700;
  font-size:clamp(2.7rem, 7vw, 5.4rem); line-height:1.02; letter-spacing:-.03em;
  margin-bottom:1.5rem;
}
.hero__lead{
  font-family:var(--font-display); font-weight:500;
  font-size:clamp(1.2rem, 2.7vw, 1.85rem); line-height:1.3; color:var(--muted);
  margin-bottom:1.4rem; max-width:34ch;
}
.hero__lead strong{ color:var(--accent); font-weight:600; }
.scramble{
  color:var(--text); font-weight:600;
  border-bottom:2px solid var(--accent-line); padding-bottom:1px;
  white-space:nowrap;
}
.hero__focus{ font-family:var(--font-mono); font-size:.88rem; color:var(--muted);
  margin:-.4rem 0 1.5rem; }
.hero__focus .k{ color:var(--faint); margin-right:.5rem; }
.hero__focus .scramble{ color:var(--accent); border-bottom-color:var(--accent-line); font-weight:500; }

.hero__desc{ color:var(--muted); max-width:52ch; margin-bottom:1.8rem; }

.hero__meta{ list-style:none; display:flex; flex-wrap:wrap; gap:.6rem 1.4rem; margin-bottom:2.2rem;
  font-family:var(--font-mono); font-size:.85rem; color:var(--muted); }
.hero__meta .k{ color:var(--faint); margin-right:.45rem; }
.hero__meta .status{ display:inline-flex; align-items:center; gap:.5rem; color:var(--text); }

.dot{ width:8px; height:8px; border-radius:50%; background:var(--accent);
  box-shadow:0 0 0 0 rgba(246,178,61,.55); animation:pulse 2.6s infinite; }
@keyframes pulse{ 0%{box-shadow:0 0 0 0 rgba(246,178,61,.5);} 70%{box-shadow:0 0 0 7px rgba(246,178,61,0);} 100%{box-shadow:0 0 0 0 rgba(246,178,61,0);} }

.hero__cta{ display:flex; flex-wrap:wrap; align-items:center; gap:.8rem; }

.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family:var(--font-mono); font-size:.9rem; font-weight:500;
  padding:.78rem 1.25rem; border-radius:10px; cursor:pointer;
  border:1px solid var(--border-2); background:var(--surface); color:var(--text);
  transition:transform .2s var(--ease), border-color .2s, background .2s, box-shadow .2s;
}
.btn:hover{ transform:translateY(-2px); }
.btn .ic{ transition:transform .25s var(--ease); }
.btn:hover .ic{ transform:translateX(3px); }
.btn--primary{ background:var(--accent); border-color:var(--accent); color:#160f02; font-weight:700; }
.btn--primary:hover{ background:var(--accent-2); box-shadow:0 10px 30px -10px rgba(246,178,61,.55); }
.btn--ghost:hover{ border-color:var(--accent); color:var(--accent); }

.hero__social{ display:flex; gap:.4rem; margin-left:.4rem; }
.hero__social a{
  display:grid; place-items:center; width:42px; height:42px; border-radius:10px;
  border:1px solid var(--border); color:var(--muted); transition:all .2s;
}
.hero__social a:hover{ color:var(--accent); border-color:var(--accent); transform:translateY(-2px); }
.hero__social .ic{ width:20px; height:20px; }

.hero__scroll{
  position:absolute; left:50%; bottom:1.6rem; transform:translateX(-50%);
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.15em; color:var(--faint);
  text-transform:uppercase; display:flex; flex-direction:column; align-items:center; gap:.5rem;
}
.hero__scroll span{ width:1px; height:34px; background:linear-gradient(var(--accent),transparent); animation:drop 2s infinite; }
@keyframes drop{ 0%{transform:scaleY(.3); transform-origin:top;} 50%{transform:scaleY(1);} 100%{transform:scaleY(.3); transform-origin:bottom;} }

/* =========================================================
   SECTIONS (base)
   ========================================================= */
.section{ padding:clamp(4.5rem, 11vh, 8rem) 0; position:relative; }
.section--alt{ background:var(--bg-soft); border-block:1px solid var(--border); }
.section__title{
  font-family:var(--font-display); font-weight:600;
  font-size:clamp(1.75rem, 4vw, 2.7rem); line-height:1.12; letter-spacing:-.02em;
  max-width:20ch; margin-bottom:2.6rem;
}

/* ---------- SOBRE ---------- */
.about{ display:grid; grid-template-columns:1.5fr 1fr; gap:clamp(2rem,5vw,4rem); align-items:start; }
.about__text .section__title{ max-width:24ch; }
.about__text p{ color:var(--muted); margin-bottom:1.1rem; max-width:56ch; }
.facts{ display:grid; gap:0; border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; }
.facts > div{ padding:1rem 1.2rem; border-bottom:1px solid var(--border); }
.facts > div:last-child{ border-bottom:0; }
.facts dt{ font-family:var(--font-mono); font-size:.75rem; letter-spacing:.05em; text-transform:uppercase; color:var(--faint); margin-bottom:.25rem; }
.facts dd{ font-size:.98rem; }

/* ---------- STACK ---------- */
.stack{ display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:1rem; }
.stack__group{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:1.3rem 1.35rem; transition:border-color .25s, transform .25s;
}
.stack__group:hover{ border-color:var(--border-2); transform:translateY(-3px); }
.stack__group h3{ font-family:var(--font-mono); font-size:.82rem; font-weight:500; letter-spacing:.03em;
  color:var(--accent); margin-bottom:1rem; text-transform:lowercase; }
.tags{ list-style:none; display:flex; flex-wrap:wrap; gap:.5rem; }
.tags li{
  font-size:.85rem; padding:.34rem .72rem; border-radius:99px;
  background:var(--surface-2); border:1px solid var(--border); color:var(--muted);
}
.stack__group:hover .tags li{ border-color:var(--border-2); }

.trajectory{
  display:flex; align-items:center; justify-content:center; gap:1.1rem; flex-wrap:wrap;
  margin-top:2.6rem; padding:1.4rem; border:1px dashed var(--border-2); border-radius:var(--radius);
  font-family:var(--font-display); font-size:clamp(1.1rem,3vw,1.6rem); font-weight:500;
}
.trajectory .ic{ color:var(--accent); width:1.6rem; height:1.6rem; }

/* ---------- TIMELINE (experiência + trajetória) ---------- */
.tl{ position:relative; padding-left:2rem; }
.tl::before{ content:""; position:absolute; left:6px; top:6px; bottom:6px; width:2px;
  background:linear-gradient(var(--accent-line), var(--border) 80%); }
.tl__item{ position:relative; padding-bottom:2.4rem; }
.tl__item:last-child{ padding-bottom:0; }
.tl__node{ position:absolute; left:-2rem; top:5px; width:14px; height:14px; border-radius:50%;
  background:var(--bg); border:2px solid var(--border-2); transition:all .3s; }
.tl__item.reveal.is-visible .tl__node,
.tl__item:hover .tl__node{ border-color:var(--accent); box-shadow:0 0 0 5px var(--accent-dim); }
.is-star .tl__node{ border-color:var(--accent); background:var(--accent); box-shadow:0 0 0 5px var(--accent-dim), 0 0 14px rgba(246,178,61,.5); }

.tl__head{ display:flex; flex-wrap:wrap; align-items:baseline; justify-content:space-between; gap:.5rem 1rem; }
.tl__head h3{ font-family:var(--font-display); font-size:1.18rem; font-weight:600; letter-spacing:-.01em; }
.tl__when{ font-family:var(--font-mono); font-size:.8rem; color:var(--accent); white-space:nowrap; }
.tl__place{ font-family:var(--font-mono); font-size:.82rem; color:var(--faint); margin:.35rem 0 .8rem; }
.tl__body > p{ color:var(--muted); margin-top:.5rem; max-width:62ch; }
.tl--dense .tl__item{ padding-bottom:1.9rem; }

.bullets{ list-style:none; display:grid; gap:.5rem; margin-top:.4rem; }
.bullets li{ position:relative; padding-left:1.2rem; color:var(--muted); max-width:64ch; }
.bullets li::before{ content:"›"; position:absolute; left:0; color:var(--accent); font-family:var(--font-mono); }

.doc-link{ display:inline-flex; align-items:center; gap:.45rem; margin-top:.8rem;
  font-family:var(--font-mono); font-size:.8rem; color:var(--muted);
  border-bottom:1px solid transparent; transition:color .2s, border-color .2s; }
.doc-link .ic{ color:var(--accent); }
.doc-link:hover{ color:var(--accent); border-color:var(--accent-line); }
.doc-links{ display:flex; flex-wrap:wrap; gap:.4rem 1.3rem; }

/* ---------- PROJETOS ---------- */
.cards{ display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:1.3rem; }
.card{
  position:relative; background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:1.5rem 1.6rem 1.7rem; overflow:hidden;
  transition:transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.card::after{ content:""; position:absolute; left:0; top:0; bottom:0; width:3px;
  background:var(--accent); transform:scaleY(0); transform-origin:top; transition:transform .35s var(--ease); }
.card:hover{ transform:translateY(-5px); border-color:var(--border-2); box-shadow:0 24px 50px -28px rgba(0,0,0,.8); }
.card:hover::after{ transform:scaleY(1); }
.card__top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:1.1rem; }
.card__badge{ display:inline-flex; align-items:center; gap:.5rem; font-family:var(--font-mono); font-size:.74rem;
  color:var(--muted); padding:.3rem .6rem; border:1px solid var(--border); border-radius:99px; }
.card__badge.live{ color:var(--accent); border-color:var(--accent-line); }
.card__year{ font-family:var(--font-mono); font-size:.8rem; color:var(--faint); }
.card__link{ display:grid; place-items:center; width:38px; height:38px; border-radius:9px;
  border:1px solid var(--border); color:var(--muted); transition:all .2s; }
.card__link:hover{ color:var(--accent); border-color:var(--accent); transform:rotate(6deg); }
.card__title{ font-family:var(--font-display); font-size:1.35rem; font-weight:600; letter-spacing:-.01em; }
.card__url{ font-family:var(--font-mono); font-size:.82rem; color:var(--accent); margin:.25rem 0 .9rem; }
.card__desc{ color:var(--muted); margin-bottom:1.2rem; }

/* ---------- CERTIFICADOS ---------- */
.cert__head{ margin-bottom:1.8rem; }
.cert__head .section__title{ margin-bottom:.6rem; }
.cert__sub{ color:var(--muted); }
.cert__sub strong{ color:var(--accent); }

.cert__controls{ display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between;
  gap:1rem; margin-bottom:1.8rem; }
.chips{ display:flex; flex-wrap:wrap; gap:.5rem; }
.chip{
  font-family:var(--font-mono); font-size:.8rem; cursor:pointer;
  padding:.45rem .85rem; border-radius:99px; background:var(--surface); color:var(--muted);
  border:1px solid var(--border); transition:all .2s;
}
.chip:hover{ color:var(--text); border-color:var(--border-2); }
.chip.is-active{ background:var(--accent); color:#160f02; border-color:var(--accent); font-weight:700; }
.chip .n{ opacity:.6; margin-left:.35rem; }
.chip.is-active .n{ opacity:.75; }

.cert__search input{
  font-family:var(--font-mono); font-size:.85rem; color:var(--text);
  background:var(--surface); border:1px solid var(--border); border-radius:10px;
  padding:.55rem .9rem; min-width:220px; transition:border-color .2s;
}
.cert__search input::placeholder{ color:var(--faint); }
.cert__search input:focus{ outline:none; border-color:var(--accent); }

.cert__grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); gap:.9rem; }
.cert-card{
  display:flex; flex-direction:column; gap:.55rem;
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:1.05rem 1.1rem; min-height:118px; transition:all .25s var(--ease);
}
.cert-card:hover{ border-color:var(--accent); transform:translateY(-3px); background:var(--surface-2); }
.cert-card__cat{ font-family:var(--font-mono); font-size:.68rem; letter-spacing:.05em; text-transform:uppercase;
  color:var(--accent); }
.cert-card__title{ font-size:.96rem; font-weight:500; line-height:1.35; color:var(--text); flex:1; }
.cert-card__foot{ display:flex; align-items:center; justify-content:space-between;
  font-family:var(--font-mono); font-size:.75rem; color:var(--faint); }
.cert-card__foot .ic{ color:var(--muted); transition:color .2s, transform .2s; width:1rem; height:1rem; }
.cert-card:hover .cert-card__foot .ic{ color:var(--accent); transform:translate(2px,-2px); }
.cert__empty{ color:var(--muted); font-family:var(--font-mono); font-size:.9rem; padding:1.5rem 0; }

/* ---------- CONTATO ---------- */
.contact{ text-align:left; }
.contact__lead{ color:var(--muted); max-width:52ch; margin-bottom:2.2rem; margin-top:-1.4rem; }
.contact__grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1rem; }
.contact__card{
  display:grid; grid-template-columns:auto 1fr; grid-template-rows:auto auto;
  column-gap:.9rem; align-items:center;
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:1.15rem 1.25rem; transition:all .25s var(--ease);
}
.contact__card .ic{ grid-row:1/3; width:22px; height:22px; color:var(--accent); }
.contact__card .k{ font-family:var(--font-mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; color:var(--faint); }
.contact__card .v{ font-size:.95rem; color:var(--text); word-break:break-word; }
.contact__card:hover{ border-color:var(--accent); transform:translateY(-3px); box-shadow:0 20px 40px -24px rgba(0,0,0,.8); }

/* ---------- FOOTER ---------- */
.footer{ border-top:1px solid var(--border); padding:2rem 0; }
.footer__inner{ display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:.8rem; }
.footer__name{ font-family:var(--font-display); font-weight:600; }
.footer__meta{ font-family:var(--font-mono); font-size:.8rem; color:var(--faint); }
.footer__top{ font-family:var(--font-mono); font-size:.82rem; color:var(--muted); display:inline-flex; align-items:center; gap:.5rem; }
.footer__top:hover{ color:var(--accent); }
.ic--up{ transform:rotate(-90deg); }

/* =========================================================
   REVEAL (scroll)
   ========================================================= */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }

/* =========================================================
   RESPONSIVO
   ========================================================= */
@media (max-width: 900px){
  .about{ grid-template-columns:1fr; }
}
@media (max-width: 760px){
  .nav__links{
    position:fixed; inset:64px 0 auto 0; flex-direction:column; align-items:stretch; gap:.2rem;
    background:rgba(9,11,15,.98); backdrop-filter:blur(14px); border-bottom:1px solid var(--border);
    padding:1rem var(--pad) 1.6rem; transform:translateY(-130%); transition:transform .35s var(--ease);
  }
  .nav__links.is-open{ transform:translateY(0); }
  .nav__links a{ padding:.85rem .6rem; font-size:.95rem; }
  .nav__cv{ margin-left:0; margin-top:.5rem; justify-content:center; }
  .nav__toggle{ display:flex; }
  .cert__controls{ flex-direction:column; align-items:stretch; }
  .cert__search input{ width:100%; }
  .hero__meta{ gap:.5rem 1rem; }
}
@media (max-width: 480px){
  .hero__cta{ gap:.6rem; }
  .btn{ flex:1; justify-content:center; }
  .hero__social{ width:100%; margin-left:0; justify-content:center; }
}

/* =========================================================
   MOTION REDUZIDO
   ========================================================= */
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .dot, .hero__scroll span{ animation:none; }
  *{ transition-duration:.01ms!important; }
}