/* Matos e Lopes · base do sistema (tokens entram em tema.css; aqui vive a mecânica) */
:root{
  --ease-out:cubic-bezier(.22,1,.36,1);
  --ease-inout:cubic-bezier(.65,0,.35,1);
  --dur:.9s;
  --tshadow:0 1px 2px rgba(5,5,10,.95),0 3px 12px rgba(5,5,10,.78),0 10px 44px rgba(5,5,10,.8);
  --hero-h:520vh;
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:auto;-webkit-text-size-adjust:100%}
html,body{overflow-x:hidden;overflow-x:clip;margin:0}
body{min-height:100vh;background:var(--canvas);color:var(--text-primary);font-family:var(--font-text);font-size:clamp(16px,1.05vw,19px);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,video,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:2px}
.sr,.skip:not(:focus){position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
.skip:focus{position:fixed;left:16px;top:16px;z-index:100;background:var(--panel);color:var(--text-primary);padding:12px 18px;border:1px solid var(--accent)}
[aria-hidden="true"]{pointer-events:none}
@media (pointer:coarse){.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center}}

/* ---------- ambiente fixo ---------- */
.ambient{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.ambient .grain{position:absolute;inset:-50%;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");opacity:.06;mix-blend-mode:multiply;animation:grain 1.4s steps(2) infinite}
@keyframes grain{0%{transform:translate(0,0)}50%{transform:translate(-1.5%,1%)}100%{transform:translate(1%,-1.5%)}}
.ambient .glow{position:absolute;width:70vmax;height:70vmax;border-radius:50%;filter:blur(120px);opacity:.35;animation:drift 80s var(--ease-inout) infinite alternate -30s}
@keyframes drift{from{transform:translate(-10%,-6%) scale(1)}to{transform:translate(14%,10%) scale(1.15)}}
main{position:relative;z-index:1}

/* ---------- hero ---------- */
.hero{position:relative;height:var(--hero-h);margin:0}
.hero .stage{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;isolation:isolate;background:var(--canvas)}
.hero .poster,.hero video,.hero canvas.frames{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .poster{background-size:cover;background-position:center}
.hero video,.hero canvas.frames{opacity:0;transition:opacity .9s var(--ease-out);will-change:transform;transform:translateZ(0)}
.hero .stage.video-ready video,.hero .stage.video-ready canvas.frames{opacity:1}
.hero .stage.video-failed video{display:none}
.hero .scrim{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 120% 90% at 50% 45%,rgba(10,10,14,0) 35%,rgba(10,10,14,.55) 100%)}
.ring{position:absolute;right:28px;bottom:28px;width:36px;height:36px;color:var(--text-primary);opacity:.8;transition:opacity .6s}
.ring.hide{opacity:0}
.ring circle{transform:rotate(-90deg);transform-origin:center;transition:stroke-dashoffset .15s linear}
.hero-static .hero{height:100vh;height:100svh}
.hero-static .hero .stage{position:relative}
.hero-static .hero video,.hero-static .hero canvas.frames,.hero-static .ring{display:none}
.hero-static .hero .band{opacity:1!important;--k:1!important;--op:1!important}
.hero-static .hero .band:not(.static){display:none}

/* faixas */
.band{position:absolute;inset:0;pointer-events:none;opacity:var(--op,0);display:grid;padding:clamp(24px,5vw,72px);text-shadow:var(--tshadow)}
.band.on{pointer-events:auto}
.band .btn{text-shadow:none}
.band::before{content:"";position:absolute;inset:-4%;pointer-events:none;opacity:calc(.25 + .75*var(--k,1));background:radial-gradient(ellipse 74% 62% at var(--sx,50%) var(--sy,50%),rgba(5,5,10,var(--scrim,.62)) 0%,rgba(5,5,10,calc(var(--scrim,.62)*.66)) 46%,rgba(5,5,10,0) 76%)}
.band.no-scrim::before{display:none}
.band > *{position:relative}
.chip{display:inline-flex;align-items:center;gap:.6em;background:rgba(8,8,15,.55);border:1px solid rgba(140,140,160,.3);border-radius:999px;padding:.45em 1em;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);text-shadow:0 1px 3px rgba(5,5,10,.85);font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}

/* coreografia (só transform e opacity, guiada por --k) */
.split .vis{display:inline}
.split .w{display:inline-block;white-space:nowrap}
.split .c{display:inline-block}
.fx-dispersao .c{--kc:clamp(0,(var(--k,0) - var(--th,0))*2.6,1);opacity:var(--kc);transform:translate(calc((1 - var(--kc))*var(--jx,0px)),calc((1 - var(--kc))*var(--jy,0px))) rotate(calc((1 - var(--kc))*var(--jr,0deg)))}
.fx-grade .c{--kc:clamp(0,(var(--k,0) - var(--th,0))*2.6,1);opacity:var(--kc);transform:translateX(calc((1 - var(--kc))*var(--jx,0px)))}
.fx-trama .c{--kc:clamp(0,(var(--k,0) - var(--th,0))*2.6,1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*var(--jy,0px)))}
.fx-deriva .w{--kc:clamp(0,(var(--k,0) - var(--th,0))*2.8,1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*-24px))}
.fx-subida .w{--kc:clamp(0,(var(--k,0) - var(--th,0))*3,1);opacity:var(--kc);transform:translateY(calc((1 - var(--kc))*.6em))}
.fx-soco .w{--kc:clamp(0,(var(--k,0) - var(--th,0))*3,1);--ks:clamp(0,(var(--k,0) - var(--th,0) - var(--sd,.1))*var(--ss,3.2),1);opacity:var(--kc);transform:scale(calc(0.6 + (0.4 + var(--ov,.12))*var(--kc) - var(--ov,.12)*var(--ks)))}
.fx-soco .w.em{--ov:0.24;--sd:0.16;--ss:2.6}
.fx-foco{position:relative}
.fx-foco .soft{position:absolute;inset:0;filter:blur(10px);opacity:calc(1 - var(--k,0))}
.fx-foco .sharp{opacity:var(--k,0)}
.fx-aprox{--kc:var(--k,0);opacity:var(--kc);transform:scale(calc(0.82 + 0.18*var(--kc)))}
.k-late{--kl:clamp(0,(var(--k,0) - .66)*4,1);opacity:var(--kl);transform:translateY(calc((1 - var(--kl))*14px))}
.k-later{--kb:clamp(0,(var(--k,0) - .78)*5,1);opacity:var(--kb);transform:translateY(calc((1 - var(--kb))*14px))}

/* ---------- entradas (IntersectionObserver põe .in) ---------- */
:where(html.js) [data-in] .part{opacity:0;transform:translateY(22px);transition:opacity var(--dur) var(--ease-out),transform var(--dur) var(--ease-out)}
[data-in].in .part{opacity:1;transform:none}
[data-in].in .part:nth-child(2){transition-delay:.09s}
[data-in].in .part:nth-child(3){transition-delay:.18s}
[data-in].in .part:nth-child(4){transition-delay:.27s}
[data-in].in .part:nth-child(5){transition-delay:.36s}
[data-in].in .part:nth-child(6){transition-delay:.45s}
[data-in].in.settled .part:nth-child(n){transition-delay:0s!important}
[data-in] .mask{overflow:hidden;padding:.12em 0 .18em;margin:-.12em 0 -.18em}
:where(html.js) [data-in] .mask > *{display:block;transform:translateY(110%);transition:transform 1.1s var(--ease-out)}
[data-in].in .mask > *{transform:none}
:where(html.js) [data-in] .reveal{clip-path:inset(0 0 100% 0);transition:clip-path 1.2s var(--ease-inout)}
[data-in].in .reveal{clip-path:inset(0 0 0 0)}
[data-in] .draw path,[data-in] .draw line,[data-in] .draw circle{stroke-dasharray:1;stroke-dashoffset:1;pathLength:1;transition:stroke-dashoffset 1.6s var(--ease-inout) .2s}
[data-in].in .draw path,[data-in].in .draw line,[data-in].in .draw circle{stroke-dashoffset:0}

/* vida em nível de sussurro (só quando .live) */
.breathe{opacity:.0}
.live .breathe{animation:breathe 6s var(--ease-inout) infinite alternate -2s}
@keyframes breathe{from{opacity:.35}to{opacity:.7}}
body.paused *,body.paused *::before,body.paused *::after{animation-play-state:paused!important}

/* ---------- cabeçalho ---------- */
header.top{position:fixed;inset:0 0 auto 0;z-index:50;height:var(--header-h);display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,4vw,56px);transition:transform .5s var(--ease-out),background .5s,backdrop-filter .5s;color:var(--on-hero,var(--text-primary))}
header.top.scrolled{background:color-mix(in oklab,var(--canvas) 78%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--text-primary)}
header.top.hide{transform:translateY(-100%)}
header.top .brand{display:flex;align-items:center;gap:14px}
header.top .brand img{height:30px;width:auto}
header.top nav{display:flex;gap:clamp(16px,2.2vw,34px);font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase}
header.top nav a{position:relative;padding:8px 0}
header.top nav a::after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:1px;background:currentColor;transition:right .5s var(--ease-out)}
header.top nav a:hover::after,header.top nav a:focus-visible::after{right:0}
@media (max-width:900px){header.top nav{display:none}}

/* ---------- botões ---------- */
.btn{display:inline-flex;align-items:center;gap:.8em;padding:.95em 1.6em;border:1px solid currentColor;border-radius:999px;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;transition:background .5s var(--ease-out),color .5s var(--ease-out),transform .5s var(--ease-out)}
.btn:hover{transform:translateY(-1px)}
.btn.solid{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.solid:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.btn svg{width:1.1em;height:1.1em}

/* ---------- utilitários ---------- */
.wrap{width:min(1440px,calc(100% - clamp(40px,8vw,128px)));margin-inline:auto}
.kicker{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--text-secondary)}
.baseline{display:flex;align-items:baseline;gap:1em}
hr.rule{border:0;height:1px;background:var(--line);margin:0}

/* ---------- movimento reduzido ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;transition-delay:0s!important}
  [data-in] .part,[data-in] .mask > *{opacity:1;transform:none}
  [data-in] .reveal{clip-path:inset(0 0 0 0)}
  [data-in] .draw path,[data-in] .draw line,[data-in] .draw circle{stroke-dashoffset:0}
  .split .c,.split .w,.k-late,.k-later,.fx-aprox{opacity:1!important;transform:none!important}
  .fx-foco .soft{display:none}.fx-foco .sharp{opacity:1}
  header.top.hide{transform:none}
}
/* telas baixas mas capazes de scrub: esconder sobreposições pequenas */
@media (max-height:560px){.cue,.hud{display:none}}