/* =========================================================
   Luis Fernandes - Portfolio (site real)
   Implementa o mockup "Site completo". Liderado pela obra.
   Assenta nos tokens de assets/css/ds-tokens.css.
   ========================================================= */
:root{
  --maxw: 1200px;
  --pad: clamp(20px, 5vw, 64px);
  --ease: cubic-bezier(.22,1,.36,1);
  --nav-h: 72px;
}

*{ box-sizing:border-box; margin:0; padding:0; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; scroll-padding-top:calc(var(--nav-h) + 12px); }

body{
  font-family:var(--font-body);
  font-weight:400;
  background:var(--bg);
  color:var(--ink);
  line-height:1.55;
  letter-spacing:-.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

::selection{ background:rgba(124,92,255,.35); color:#fff; }

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
button{ font:inherit; }

:focus-visible{ outline:2px solid var(--cyan); outline-offset:3px; border-radius:6px; }

.container{ width:100%; max-width:var(--maxw); margin:0 auto; padding-left:var(--pad); padding-right:var(--pad); }

/* =========================================================
   Fundo: grelha tecnica subtil + vinheta radial
   ========================================================= */
.bg-grid{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(var(--line-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-2) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 78%);
}
/* fundo "vivo": faixa de luz que percorre a grelha lentamente */
.bg-grid::after{ content:""; position:absolute; left:0; right:0; top:0; height:42%;
  background:linear-gradient(to bottom, transparent, rgba(124,92,255,.05) 46%, rgba(0,229,255,.05) 54%, transparent);
  animation:gridScan 11s linear infinite; pointer-events:none; }
@keyframes gridScan{ 0%{ transform:translateY(-110%); } 100%{ transform:translateY(330%); } }
html.no-anim .bg-grid::after{ display:none; }
.bg-vignette{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(ellipse 70% 55% at 50% 22%, transparent 42%, rgba(7,8,13,.9) 100%),
    radial-gradient(circle at 50% 118%, rgba(124,92,255,.10), transparent 55%);
}
main, .nav, .footer{ position:relative; z-index:2; }

/* =========================================================
   NAV
   ========================================================= */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  gap:24px;
  padding:16px var(--pad);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s;
}
.nav.is-scrolled{
  background:rgba(7,8,13,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav__brand{ display:flex; align-items:center; gap:11px; font-family:var(--font-display); font-weight:800; color:var(--ink); }
.nav__logo{ font-size:14px; line-height:1; border:1.5px solid var(--ink); border-radius:8px; padding:5px 7px; }
.nav__dotwrap{ display:flex; align-items:center; gap:6px; font-family:var(--font-mono); font-size:13px; font-weight:500; }
.nav__dot{ width:7px; height:7px; border-radius:50%; background:var(--cyan); box-shadow:var(--glow-cyan); }
.nav__links{ display:flex; gap:30px; font-family:var(--font-mono); font-size:13px; letter-spacing:.04em; text-transform:uppercase; color:var(--ink-2); }
.nav__links a{ position:relative; padding:4px 0; transition:color .2s; }
.nav__links a:hover{ color:var(--ink); }
.nav__links a::after{
  content:""; position:absolute; left:0; bottom:-2px; width:100%; height:1px;
  background:var(--grad); transform:scaleX(0); transform-origin:left; transition:transform .3s var(--ease);
}
.nav__links a:hover::after{ transform:scaleX(1); }
.nav__actions{ display:flex; align-items:center; gap:14px; }
.nav__cta{ flex:0 0 auto; }
.lang{ display:inline-flex; align-items:center; border:1px solid var(--line); border-radius:var(--r-pill); overflow:hidden; }
.lang__btn{ font-family:var(--font-mono); font-size:11px; letter-spacing:.06em; line-height:1; color:var(--ink-3); background:transparent; border:0; padding:7px 10px; cursor:pointer; transition:color .2s, background .2s; }
.lang__btn + .lang__btn{ border-left:1px solid var(--line); }
.lang__btn:hover{ color:var(--ink); }
.lang__btn.is-active{ color:var(--ink); background:rgba(255,255,255,.06); }
.nav__toggle{ display:none; }

/* =========================================================
   Seccoes base
   ========================================================= */
.section{ padding:clamp(56px,8vh,92px) 0; border-top:1px solid var(--line); }

.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap; margin-bottom:40px; }
.section-head .ds-kicker{ margin-bottom:16px; }
.section-head__meta{ color:var(--ink-3); padding-bottom:8px; }

/* =========================================================
   HERO
   ========================================================= */
.hero{ min-height:100vh; display:flex; align-items:center; padding:calc(var(--nav-h) + 40px) 0 72px; }
.hero__inner{ display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(32px,5vw,64px); align-items:center; }
.hero__title{ font-size:clamp(46px,8vw,92px); line-height:.92; margin:28px 0 18px; }
.hero__role{ font-size:14px; letter-spacing:.06em; color:var(--ink-2); margin-bottom:22px; }
.hero__lead{ max-width:42ch; margin-bottom:34px; }
.hero__cta{ display:flex; gap:14px; flex-wrap:wrap; }
.hero__cta .arrow{ transition:transform .25s var(--ease); }
.hero__cta .ds-btn:hover{ transform:translateY(-2px); }
.hero__cta .ds-btn:hover .arrow{ transform:translateX(4px); }

.hero__visual{ position:relative; width:100%; max-width:440px; aspect-ratio:1/1; justify-self:center; display:grid; place-items:center; cursor:grab; touch-action:none; }
.hero__visual:active{ cursor:grabbing; }
.hero__glow{
  position:absolute; inset:-6%;
  background:radial-gradient(circle closest-side at 50% 55%, rgba(124,92,255,.38), rgba(0,229,255,.12) 46%, transparent 82%);
  filter:blur(28px);
}
#hero-canvas{ position:relative; z-index:1; width:100%; height:100%; display:block; cursor:grab; touch-action:pan-y; }
#hero-canvas:active{ cursor:grabbing; }
.hero__placeholder{ display:none; }
.hero__visual.no-3d #hero-canvas{ display:none; }
.hero__visual.no-3d .hero__placeholder{
  display:flex; align-items:center; justify-content:center; position:relative; z-index:1;
  width:62%; aspect-ratio:1/1; border-radius:28px; border:1px solid rgba(255,255,255,.14);
  background:repeating-linear-gradient(135deg, rgba(255,255,255,.05) 0 1px, transparent 1px 12px), linear-gradient(160deg,#10121d,#0a0b12);
  box-shadow:0 0 60px rgba(124,92,255,.35);
  font-family:var(--font-mono); font-size:11px; letter-spacing:.14em; color:var(--ink-3); text-align:center; line-height:1.7;
}

/* =========================================================
   SOBRE
   ========================================================= */
.sobre__grid{ display:grid; grid-template-columns:.5fr 1fr; gap:clamp(32px,6vw,64px); align-items:start; }
.sobre__title{ max-width:20ch; margin-bottom:30px; }
.sobre__lead{ max-width:60ch; margin-bottom:38px; }
.sobre__facts{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.fact{ border-top:1px solid var(--line); padding-top:16px; }
.fact__k{ font-family:var(--font-display); font-weight:800; font-size:22px; letter-spacing:-.02em; color:var(--ink); margin-bottom:6px; }
.fact__v{ font-size:13px; }

/* =========================================================
   PERCURSO (timeline)
   ========================================================= */
.tl{ position:relative; margin-top:38px; display:grid; gap:30px; max-width:760px; }
.tl::before{ content:""; position:absolute; left:7px; top:6px; bottom:6px; width:1px; background:var(--line); }
.tl__item{ position:relative; padding-left:36px; }
.tl__item::before{ content:""; position:absolute; left:3px; top:6px; width:9px; height:9px; border-radius:50%; background:var(--violet); box-shadow:var(--glow-violet); }
.tl__item:nth-child(even)::before{ background:var(--cyan); box-shadow:var(--glow-cyan); }
.tl__year{ font-family:var(--font-mono); font-size:12px; letter-spacing:.1em; color:var(--ink-3); }
.tl__role{ font-family:var(--font-display); font-weight:700; font-size:18px; color:var(--ink); margin:6px 0 7px; }
.tl__desc{ font-size:14.5px; line-height:1.6; color:var(--ink-2); }

/* =========================================================
   HABILIDADES
   ========================================================= */
.skills__list{ border-top:1px solid var(--line); }
.skills__row{
  position:relative;
  display:grid; grid-template-columns:280px 1fr; gap:clamp(24px,5vw,48px);
  align-items:start; padding:26px 0; border-bottom:1px solid var(--line);
}
.skills__row::after{
  content:""; position:absolute; left:0; bottom:-1px; height:1px; width:0;
  background:var(--grad); transition:width .6s var(--ease);
}
.skills__row:hover::after{ width:100%; }
.skills__head{ display:flex; align-items:baseline; gap:14px; }
.skills__num{ color:var(--ink-3); }
.skills__head h3{ font-size:26px; }
.skills__row:hover .skills__head h3{ background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.skills__chips{ display:flex; flex-wrap:wrap; gap:10px; padding-top:4px; }
.skills__chips .ds-tag{ font-size:13px; padding:9px 16px; transition:color .25s, border-color .25s, background .25s, transform .25s var(--ease); }
.skills__chips .ds-tag:hover{ color:var(--ink); border-color:color-mix(in srgb,var(--cyan) 55%,transparent); background:rgba(0,229,255,.06); transform:translateY(-2px); }

/* =========================================================
   METODO
   ========================================================= */
.method__title{ max-width:22ch; margin:16px 0 48px; }
.method__grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:20px; }
.method__item{ border-top:1px solid var(--line); padding-top:20px; }
.method__num{ margin-bottom:16px; }
.method__item h3{ font-size:18px; margin-bottom:10px; }
.method__item .ds-body{ font-size:13px; }
/* scrollytelling: barra de progresso + revelacao sequencial */
.method__track{ height:2px; background:var(--line); border-radius:2px; margin:6px 0 30px; position:relative; overflow:hidden; }
.method__fill{ position:absolute; left:0; top:0; bottom:0; width:0; background:var(--grad); box-shadow:0 0 12px rgba(124,92,255,.55); }
.method.is-seq .method__item{ opacity:.3; transform:translateY(8px); transition:opacity .5s var(--ease), transform .5s var(--ease); }
.method.is-seq .method__item.is-on{ opacity:1; transform:none; }
.method.is-seq .method__item .method__num b{ color:var(--ink-3); transition:color .4s; }
.method.is-seq .method__item.is-on .method__num b{ color:var(--violet); }

/* Selos de rigor tecnico */
.quality{ display:flex; flex-wrap:wrap; gap:12px; margin-top:44px; padding-top:32px; border-top:1px solid var(--line); }
.quality__b{ display:inline-flex; align-items:center; gap:9px; font-family:var(--font-mono); font-size:12.5px; letter-spacing:.02em; color:var(--ink-2); border:1px solid var(--line); border-radius:var(--r-pill); padding:9px 16px; transition:border-color .25s, color .25s, box-shadow .25s, transform .25s var(--ease); }
.quality__b::before{ content:"\2713"; color:var(--cyan); font-weight:700; }
.quality__b:hover{ color:var(--ink); border-color:color-mix(in srgb,var(--cyan) 50%,transparent); box-shadow:0 0 20px -6px rgba(0,229,255,.5); transform:translateY(-2px); }

/* =========================================================
   TRABALHO (strips)
   ========================================================= */
.strip{ border-top:1px solid var(--line); padding:clamp(32px,5vw,44px) 0; display:grid; grid-template-columns:1fr .9fr; gap:clamp(28px,4vw,48px); align-items:center; position:relative; }
.strip__meta{ display:flex; align-items:center; gap:12px; margin-bottom:16px; flex-wrap:wrap; }
.strip .ds-index b{ color:var(--ac); }
.strip__cat{ color:var(--ac); letter-spacing:.14em; }
.strip__badge{
  font-family:var(--font-mono); font-size:9.5px; letter-spacing:.1em; font-weight:600;
  color:#06070c; background:var(--grad); padding:3px 8px; border-radius:999px;
}
.strip__title{ font-size:clamp(30px,4vw,44px); margin-bottom:14px; }
.strip__lead{ font-size:18px; max-width:42ch; margin-bottom:18px; }
.strip__specs{ display:flex; gap:8px; flex-wrap:wrap; }
.strip__specs .ds-mono{ font-size:12px; color:var(--ink-2); }

/* "Ver projeto" + faixa inteira clicavel (stretched link) */
.strip__more{ position:relative; z-index:2; display:inline-flex; align-items:center; gap:8px; margin-top:20px; font-family:var(--font-mono); font-size:13px; letter-spacing:.04em; color:var(--ac); transition:gap .25s var(--ease); }
.strip__more::after{ content:""; position:absolute; inset:0; z-index:1; }
.strip:hover .strip__more{ gap:14px; }

/* Moldura de browser (CaseFrame) */
.frame{
  border-radius:14px; overflow:hidden; border:1px solid var(--line);
  background:#05060a; box-shadow:var(--shadow);
  transition:transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.strip:hover .frame{ transform:translateY(-4px); border-color:color-mix(in srgb,var(--ac) 50%,transparent); box-shadow:0 28px 60px -28px color-mix(in srgb,var(--ac) 60%,transparent); }
.frame__bar{ display:flex; align-items:center; gap:8px; padding:12px 14px; border-bottom:1px solid var(--line); background:var(--bg-soft); }
.frame__dot{ width:10px; height:10px; border-radius:50%; background:#2a2d3a; flex:0 0 auto; }
.frame__url{ margin-left:10px; flex:1; height:22px; border-radius:6px; background:var(--bg-elev); display:flex; align-items:center; padding:0 10px; font-size:11px; color:var(--ink-3); }
.frame__body{ height:230px; position:relative; overflow:hidden; display:grid; place-items:center; background:#05060a; }
.frame__body--ph{ background:repeating-linear-gradient(135deg, rgba(255,255,255,.04) 0 1px, transparent 1px 14px), linear-gradient(160deg,#0c0e16,#070810); }
.frame__img{ width:100%; height:100%; object-fit:cover; object-position:top; display:block; }
.frame__label{ font-size:12px; letter-spacing:.1em; color:var(--ink-3); }
.frame__mark{ position:absolute; top:14px; left:14px; width:34px; height:4px; border-radius:2px; background:var(--ac); box-shadow:0 0 14px var(--ac); z-index:2; }

/* =========================================================
   CONTACTO
   ========================================================= */
.contact__inner{ display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap; }
.contact__mail{
  display:inline-flex; align-items:center; gap:14px; margin-top:18px;
  font-family:var(--font-display); font-weight:800; font-size:clamp(28px,4.5vw,40px);
  letter-spacing:-.02em; color:var(--ink); transition:gap .3s var(--ease);
}
.contact__mail:hover{ gap:22px; }
.contact__ico{ color:var(--violet); }
.contact__socials{ display:flex; gap:12px; flex-wrap:wrap; }
.contact__socials .ds-tag{ font-size:13px; padding:11px 20px; transition:color .3s, border-color .3s, transform .3s var(--ease); }
.contact__socials .ds-tag:hover{ color:var(--ink); border-color:rgba(255,255,255,.28); transform:translateY(-2px); }

/* =========================================================
   FOOTER
   ========================================================= */
.footer{ border-top:1px solid var(--line); }
.footer__inner{ display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding:48px 0; }
.footer__brand{ max-width:320px; }
.footer__logo{ margin-bottom:14px; }
.footer__tag{ max-width:34ch; }
.footer__cols{ display:flex; gap:64px; }
.footer__col{ display:flex; flex-direction:column; gap:10px; }
.footer__col .ds-kicker{ margin-bottom:14px; }
.footer__col a{ color:var(--ink-2); transition:color .2s; }
.footer__col a:hover{ color:var(--ink); }
.footer__base{ display:flex; justify-content:space-between; gap:18px; flex-wrap:wrap; padding:18px 0; border-top:1px solid var(--line-2); }
.footer__base .ds-mono{ font-size:11px; color:var(--ink-3); }

/* =========================================================
   Micro-interacoes
   ========================================================= */
#scrollbar{ position:fixed; top:0; left:0; right:0; height:3px; z-index:60; background:var(--grad); transform:scaleX(0); transform-origin:left; will-change:transform; }
.ds-btn[data-magnetic]{ transition:transform .25s var(--ease), box-shadow .3s; }

@keyframes pageIn{ from{ opacity:0; transform:translateY(6px); } to{ opacity:1; transform:none; } }
main{ animation:pageIn .5s var(--ease) both; }
html.no-anim main{ animation:none; }

/* Metricas / numeros */
.stats{ display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:clamp(20px,3vw,40px); }
.stat{ border-top:1px solid var(--line); padding-top:18px; }
.stat__n{ font-family:var(--font-display); font-weight:800; font-size:clamp(34px,4.4vw,50px); letter-spacing:-.03em; line-height:1; color:var(--ink); }
.stat__n.grad{ background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.stat__l{ font-size:13px; color:var(--ink-2); margin-top:10px; line-height:1.45; }

/* =========================================================
   Reveal on load / scroll
   ========================================================= */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }
.reveal.d1{ transition-delay:.10s; }
.reveal.d2{ transition-delay:.22s; }
.reveal.d3{ transition-delay:.34s; }
.reveal.d4{ transition-delay:.46s; }

/* Fallback: se o relogio de animacoes nao avanca (alguns ambientes
   congelam document.timeline), garantimos conteudo visivel de imediato. */
html.no-anim *, html.no-anim *::before, html.no-anim *::after{ transition:none !important; animation:none !important; }
html.no-anim .reveal{ opacity:1 !important; transform:none !important; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width:1080px){
  .method__grid{ grid-template-columns:repeat(3,1fr); }
}

@media (max-width:920px){
  .hero{ min-height:auto; padding:calc(var(--nav-h) + 32px) 0 56px; }
  .hero__inner{ grid-template-columns:1fr; gap:32px; text-align:center; }
  .hero__copy{ display:flex; flex-direction:column; align-items:center; }
  .hero__visual{ max-width:280px; }
  .hero__lead{ margin-left:auto; margin-right:auto; }
  .hero__title{ margin-top:18px; }
  .sobre__grid{ grid-template-columns:1fr; gap:20px; }
  .strip{ grid-template-columns:1fr; gap:24px; }
  .frame__body{ height:200px; }
}

@media (max-width:720px){
  .nav__links{
    position:fixed; inset:0 0 0 auto; width:min(80vw,320px);
    flex-direction:column; gap:6px; padding:96px 32px; margin-left:0;
    background:rgba(11,13,21,.97); backdrop-filter:blur(18px);
    border-left:1px solid var(--line); transform:translateX(100%);
    transition:transform .4s var(--ease); font-size:15px;
  }
  .nav.open .nav__links{ transform:translateX(0); }
  .nav__links a{ padding:10px 0; color:var(--ink); }
  .nav__cta{ display:none; }
  .nav__toggle{
    display:inline-flex; flex-direction:column; gap:5px; width:30px;
    background:none; border:none; cursor:pointer; z-index:60;
  }
  .nav__toggle span{ height:2px; width:100%; background:var(--ink); border-radius:2px; transition:transform .3s var(--ease), opacity .3s; }
  .nav.open .nav__toggle span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav.open .nav__toggle span:nth-child(2){ opacity:0; }
  .nav.open .nav__toggle span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

  .section-head{ align-items:flex-start; }
  .skills__row{ grid-template-columns:1fr; gap:16px; }
  .method__grid{ grid-template-columns:repeat(2,1fr); }
  .sobre__facts{ grid-template-columns:1fr; gap:0; }
  .fact{ padding:14px 0; }
  .contact__inner{ align-items:flex-start; }
  .footer__inner{ flex-direction:column; gap:28px; }
  .footer__cols{ gap:40px; }
}

@media (max-width:460px){
  .method__grid{ grid-template-columns:1fr; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .reveal{ opacity:1 !important; transform:none !important; transition:none !important; }
  *{ animation:none !important; }
}