/* Home v2 — Lab Extremo */
.hero{position:relative;isolation:isolate;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-media{position:absolute;inset:0;z-index:-2;display:grid;grid-template-columns:repeat(2,1fr);gap:0}
@media(min-width:880px){.hero-media{grid-template-columns:repeat(4,1fr)}}
.hero-media .tile{position:relative;overflow:hidden}
.hero-media .tile:nth-child(n+3){display:none}
@media(min-width:880px){.hero-media .tile:nth-child(n+3){display:block}}
.hero-media img,.hero-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scale(1.08)}
.hero-media video{opacity:0;transition:opacity 1s}
.hero-media video.on{opacity:1}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:
  linear-gradient(90deg,rgba(13,18,38,.97) 0%,rgba(13,18,38,.86) 42%,rgba(13,18,38,.55) 100%),
  linear-gradient(180deg,rgba(13,18,38,.35) 0%,rgba(13,18,38,0) 40%,rgba(13,18,38,1) 100%)}
@media(max-width:879px){.hero::before{background:linear-gradient(180deg,rgba(13,18,38,.82),rgba(13,18,38,.93) 55%,var(--bg))}}
.hero-grid{display:grid;gap:40px;align-items:center;padding:56px 0 64px}
@media(min-width:880px){.hero-grid{grid-template-columns:1.1fr .9fr;padding:96px 0 104px}}
.stamp{display:inline-block;border:3px solid var(--red);color:var(--red);font-weight:800;font-size:14px;padding:4px 12px;border-radius:4px;transform:rotate(-3deg);margin-bottom:20px;letter-spacing:.04em;background:rgba(13,18,38,.5)}
.hero h1{font-size:clamp(42px,7vw,86px);line-height:.96;margin:0 0 20px;font-weight:800;letter-spacing:-.03em}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--amber),#ffdf8a 40%,var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:clamp(18px,2vw,21px);color:#cfd3ea;max-width:30em;margin:0 0 30px}
.ctas{display:flex;flex-wrap:wrap;gap:12px}
.stats{display:flex;gap:32px;margin-top:38px;color:var(--mute);font-size:15px}
.stats b{display:block;color:var(--ink);font-size:28px;line-height:1.1}

.sim{position:relative;background:rgba(23,29,58,.62);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid rgba(164,171,208,.22);border-radius:28px;padding:24px 22px 20px;text-align:center;box-shadow:0 40px 80px -40px rgba(0,0,0,.8)}
.sim h3{margin:0 0 6px;font-size:20px}
.sim p{margin:0 0 10px;color:var(--mute);font-size:14px}
.sim svg{width:100%;max-width:300px;height:auto;margin:0 auto;filter:drop-shadow(0 20px 40px rgba(61,99,201,.35))}
.seg{display:inline-flex;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:4px;margin:10px 0 8px}
.seg button{border:0;background:transparent;color:var(--mute);font:700 14px var(--font);padding:8px 18px;border-radius:999px;cursor:pointer;transition:background .2s,color .2s}
.seg button[aria-pressed=true]{background:var(--teal);color:#002b24}
.readout{font-size:14px;color:var(--mute);min-height:22px;font-variant-numeric:tabular-nums}
.readout b{color:var(--amber)}
.sim .src{font-size:11px;color:#7f88b8;margin-top:6px}

/* Flip cards com imagem */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{perspective:1000px;background:none;border:0;padding:0;height:360px;cursor:pointer;font-family:inherit;color:inherit;text-align:left;border-radius:22px}
.card .in{position:relative;width:100%;height:100%;transition:transform .7s var(--ease);transform-style:preserve-3d}
.card[aria-pressed=true] .in{transform:rotateY(180deg)}
.f,.b{position:absolute;inset:0;-webkit-backface-visibility:hidden;backface-visibility:hidden;border-radius:22px;padding:22px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}
.f{background:var(--surf);border:1px solid var(--line)}
.f .bg{position:absolute;inset:0;z-index:0}
.f .bg img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.f::after{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(180deg,rgba(13,18,38,.15) 0%,rgba(13,18,38,.35) 40%,rgba(13,18,38,.95) 100%)}
.f>*:not(.bg){position:relative;z-index:1}
.card:hover .f .bg img{transform:scale(1.07)}
.card:hover .f{border-color:var(--amber)}
.b{background:linear-gradient(160deg,var(--teal),#28b9a1);color:#00231d;transform:rotateY(180deg)}
.card .tag{border:0;padding:4px 10px;background:var(--red);color:#fff;letter-spacing:.1em}
.b .tag{background:#00231d;color:var(--teal)}
.q{font-size:23px;font-weight:800;line-height:1.12;margin:auto 0 8px;text-shadow:0 2px 12px rgba(0,0,0,.5)}
.f .top{display:flex;justify-content:space-between;align-items:flex-start}
.ico{width:88px;height:88px;margin:auto}
.chip{font-size:12px;color:#d9dcef;background:rgba(13,18,38,.55);border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:3px 10px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.hint{font-size:13px;color:var(--mute)}
.f .hint{color:#cfd3ea;display:flex;align-items:center;gap:6px}
.card .in,.f,.b,.f .bg{display:block}.f,.b{display:flex}.q,.b .ans,.b .credit{display:block}
.b .ans{margin:10px 0 0;font-size:18px;font-weight:600;line-height:1.45}
.b .credit{font-size:11px;color:#00382f;margin-top:8px}
.card.noimg .f{background:radial-gradient(circle at 30% 20%,#25306a,var(--surf) 70%)}

/* Slider antes/depois */
.compare{display:grid;gap:28px;align-items:center;margin-top:56px;background:var(--surf);border:1px solid var(--line);border-radius:28px;padding:24px}
@media(min-width:880px){.compare{grid-template-columns:1fr 1.1fr;padding:36px}}
.compare h3{font-size:clamp(24px,3vw,32px);margin:0 0 10px}
.compare p{color:var(--mute);margin:0 0 10px}
.ba{position:relative;aspect-ratio:1/1;border-radius:20px;overflow:hidden;--pos:50%;user-select:none;touch-action:pan-y;background:#000}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba .after{clip-path:inset(0 0 0 var(--pos))}
.ba .bar{position:absolute;top:0;bottom:0;left:var(--pos);width:3px;margin-left:-1.5px;background:var(--amber);box-shadow:0 0 16px rgba(255,194,61,.8);pointer-events:none}
.ba .knob{position:absolute;top:50%;left:var(--pos);width:46px;height:46px;margin:-23px 0 0 -23px;border-radius:50%;background:var(--amber);display:grid;place-items:center;color:#1a1300;font-weight:800;pointer-events:none;box-shadow:0 8px 24px rgba(0,0,0,.5)}
.ba .lbl{position:absolute;bottom:12px;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;background:rgba(13,18,38,.7);padding:4px 10px;border-radius:999px;pointer-events:none}
.ba .l1{left:12px}.ba .l2{right:12px}
.ba input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0;padding:0;border:0}
.ba:focus-within .knob{outline:3px solid #fff;outline-offset:2px}

/* Cartões de vídeo (hover = loop) */
.vids{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:620px){.vids{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){.vids{grid-template-columns:repeat(3,1fr)}}
.vid{position:relative;display:block;text-decoration:none;color:var(--ink);background:var(--surf);border:1px solid var(--line);border-radius:24px;overflow:hidden;transform-style:preserve-3d;transition:border-color .3s,box-shadow .3s;will-change:transform}
.vid:hover{color:var(--ink);border-color:rgba(255,194,61,.6);box-shadow:0 30px 60px -30px rgba(0,0,0,.9),0 0 0 1px rgba(255,194,61,.25)}
.vid .th{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--surf2)}
.vids.small .vid .th{aspect-ratio:9/14}
.vid .th img,.vid .th video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease),opacity .5s}
.vid .th video{opacity:0}
.vid.playing .th video{opacity:1}
.vid:hover .th img,.vid:hover .th video{transform:scale(1.05)}
.vid .th::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,18,38,0) 50%,rgba(13,18,38,.9))}
.play{position:absolute;z-index:2;left:18px;top:18px;width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center;transition:transform .3s var(--ease),opacity .3s}
.play::before{content:"";border-left:15px solid #14123a;border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:4px}
.vid.playing .play{transform:scale(.8);opacity:.0}
.vid .meta{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:18px 20px 20px;transform:translateZ(30px)}
.vid b{display:block;font-size:22px;line-height:1.15;margin:8px 0 4px}
.vids.small .vid b{font-size:18px}
.vid span.d{color:#cfd3ea;font-size:15px;display:block}
.vid .go{display:inline-block;margin-top:10px;font-weight:800;color:var(--amber);font-size:14px}
.vid .glare{position:absolute;inset:0;z-index:3;pointer-events:none;background:radial-gradient(circle at var(--gx,50%) var(--gy,50%),rgba(255,255,255,.14),transparent 45%);opacity:0;transition:opacity .3s}
.vid:hover .glare{opacity:1}
.cr{position:absolute;z-index:2;right:10px;top:12px;font-size:10px;color:#d9dcef;background:rgba(13,18,38,.65);padding:2px 8px;border-radius:999px}

/* Livros */
.books{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.book{position:relative;background:var(--surf);border:1px solid var(--line);border-radius:20px;padding:22px 22px 22px 30px;text-decoration:none;display:block;color:var(--ink);overflow:hidden;transition:transform .25s var(--ease),background .25s}
.book::before{content:"";position:absolute;left:0;top:0;bottom:0;width:8px;background:var(--c,var(--amber))}
.book:hover{background:var(--surf2);transform:translateY(-3px);color:var(--ink)}
.book small{color:var(--amber);font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.book b{display:block;font-size:19px;margin:6px 0}
.note{font-size:13px;color:var(--mute);margin-top:18px}
.cta{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--surf2),var(--surf));border:1px solid var(--line);border-radius:32px;padding:56px 28px;text-align:center;isolation:isolate}
.cta .bgv{position:absolute;inset:0;z-index:-1;opacity:.28}
.cta .bgv img{width:100%;height:100%;object-fit:cover}
.cta::after{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(circle at 50% 0%,transparent,rgba(13,18,38,.85) 70%)}
.cta h2{font-size:clamp(32px,5vw,54px);margin:0 0 10px}
.cta .section-sub{margin:0 auto 24px}
.home-ad{margin-top:0;margin-bottom:0}
@media(prefers-reduced-motion:reduce){.card .in{transition:none}.hero-media video{display:none}}
.js .vid.reveal.is-in{transition:opacity .8s var(--ease),transform .2s ease-out,border-color .3s,box-shadow .3s}
.vid .th,.vid .meta,.vid .d,.vid .go{display:block}
.vid .go{display:inline-block}

section[id]{scroll-margin-top:64px}
@media(max-width:619px){
  .cards{grid-auto-flow:column;grid-template-columns:none;grid-auto-columns:80%;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;margin:0 -20px;padding-left:20px;padding-right:20px;scroll-padding-left:20px;scrollbar-width:none}
  .cards::-webkit-scrollbar{display:none}
  .card{scroll-snap-align:start;height:400px}
  .vids.small{grid-template-columns:repeat(2,1fr);gap:12px}
  .vids.small .vid .meta{padding:12px}
  .vids.small .vid b{font-size:16px}
  .vids.small .vid .d,.vids.small .vid .go{display:none}
  .vids.small .play{left:10px;top:10px;width:36px;height:36px}
  .vids.small .cr{display:none}
  .hero h1{font-size:44px}
}
.swipe-hint{display:none}
@media(max-width:619px){.swipe-hint{display:block;font-size:13px;color:var(--mute);margin:-18px 0 14px}}
/* Capas oficiais dos Shorts (têm título no topo) */
.f .bot{display:block;margin-top:auto}
.f .bot .tag{margin-bottom:8px}
.card.cover .f .bg img{object-position:center top}
.card.cover .f::after{background:linear-gradient(180deg,rgba(13,18,38,0) 0%,rgba(13,18,38,0) 45%,rgba(13,18,38,.96) 82%)}
.card.cover .q{font-size:21px}
.vid.cover .th img{object-position:center top}
@media(min-width:960px){.vids.small{grid-template-columns:repeat(4,1fr)}}
.vids.small .vid .th{aspect-ratio:9/16}
.vids.small .play{left:50%;top:50%;margin:-23px 0 0 -23px}
.vids.small .cr{top:auto;bottom:auto;right:8px;top:8px}
.vids.small .vid.cover .th::after{background:linear-gradient(180deg,rgba(13,18,38,0) 55%,rgba(13,18,38,.95))}
@media(max-width:619px){.vids.small .play{margin:-18px 0 0 -18px}}
/* Filtros da galeria */
.filters{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 8px;margin-bottom:6px;scrollbar-width:none}
.filters::-webkit-scrollbar{display:none}
@media(min-width:880px){.filters{flex-wrap:wrap;overflow:visible}}
.filter{flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surf);color:var(--ink);border-radius:999px;padding:9px 16px;font:700 15px var(--font);cursor:pointer;transition:background .2s,border-color .2s,color .2s,transform .2s}
.filter span{font-size:12px;color:var(--mute);background:var(--bg);border-radius:999px;padding:1px 8px}
.filter:hover{border-color:var(--amber);transform:translateY(-1px)}
.filter[aria-pressed=true]{background:var(--amber);border-color:var(--amber);color:#1a1300}
.filter[aria-pressed=true] span{background:rgba(26,19,0,.15);color:#1a1300}
.filter-status{min-height:1.2em;margin:0 0 16px}
.vid.is-hidden{display:none}
.vid.pop{animation:pop .45s var(--ease)}
@keyframes pop{from{opacity:0;transform:scale(.96) translateY(10px)}to{opacity:1;transform:none}}