/* Studio UmpaUmpa — tema claro, alto contraste, mobile-first.
   Base = celular. Telas maiores entram por min-width (640, 900). */
:root{
  --fundo:#FBF9F4;      /* papel claro */
  --cartao:#FFFFFF;
  --suave:#F2EEE3;      /* faixas e blocos de código */
  --linha:#E3DDCF;
  --texto:#16150F;      /* quase preto: contraste 17:1 */
  --apoio:#55514A;      /* texto de apoio: contraste 7.6:1 */
  --acao:#FFD12E;       /* amarelo da marca: só fundo de botão/preço */
  --acao-txt:#7A5C00;   /* amarelo escuro legível para texto */
  --escuro:#16150F;
  --titulo:'Bricolage Grotesque','Arial Narrow',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --raio:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--fundo);color:var(--texto);font:17px/1.6 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-underline-offset:3px}
img{max-width:100%;display:block}
.w{width:100%;max-width:1080px;margin:0 auto;padding:0 20px}
.estreito{max-width:680px}
.so-desk{display:none}

/* ---------- topo ---------- */
.topo{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px}
.marca{font:800 21px/1 var(--titulo);letter-spacing:-.02em;text-decoration:none;white-space:nowrap}
.marca small{font:600 9px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--acao-txt);margin-left:4px;vertical-align:middle}
.topo nav{display:flex;align-items:center;gap:14px;font-size:15px}
.topo nav a{text-decoration:none;color:var(--apoio);font-weight:500;padding:10px 0}
.topo nav a:hover{color:var(--texto)}
.topo nav a.btn{color:var(--escuro);padding:0 16px}

/* ---------- tipografia ---------- */
h1,h2,h3{font-family:var(--titulo);font-weight:800;letter-spacing:-.025em;margin:0;text-wrap:balance;color:var(--texto)}
h1{font-size:clamp(40px,11vw,80px);line-height:1}
h2{font-size:clamp(28px,7vw,44px);line-height:1.08}
h3{font-size:19px;letter-spacing:-.01em;font-weight:700;line-height:1.25}
p{margin:0}
.apoio{color:var(--apoio)}
.rotulo{font:600 12px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--apoio)}
.rotulo.cor{color:var(--acao-txt)}
.mono{font-family:var(--mono);font-size:.9em}

/* ---------- botões ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:0 24px;border-radius:10px;background:var(--acao);color:var(--escuro);font:700 17px/1.2 Inter,sans-serif;text-decoration:none;border:0;cursor:pointer;text-align:center;box-shadow:0 1px 0 rgba(0,0,0,.08)}
.btn:hover{filter:brightness(.97)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid var(--texto);outline-offset:2px}
.btn.sec{background:var(--cartao);color:var(--texto);border:1.5px solid var(--texto);box-shadow:none}
.btn.peq{min-height:44px;padding:0 16px;font-size:15px}
.btn.cheio{width:100%}
.link{color:var(--texto);font-weight:600;text-decoration:underline;text-underline-offset:4px}

/* ---------- seções ---------- */
section{padding:56px 0}
.secao-cab{display:flex;flex-direction:column;gap:10px;margin-bottom:28px;max-width:640px}
.linha-top{border-top:1px solid var(--linha)}
.faixa{background:var(--suave)}

/* ---------- hero (celular: texto, depois vídeo) ---------- */
.hero{display:flex;flex-direction:column;gap:32px;padding:24px 20px 48px}
.hero-txt{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.hero-txt p.lead{font-size:18px;color:var(--apoio);max-width:500px}
.hero-acoes{display:flex;flex-direction:column;gap:14px;width:100%}
.hero-acoes .btn{width:100%}
.hero-acoes .link{align-self:center}
.hero-vis{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:end}

/* ---------- vídeo 9:16 ---------- */
.video{position:relative;aspect-ratio:9/16;border-radius:var(--raio);overflow:hidden;background:var(--escuro);border:0;padding:0;cursor:pointer;width:100%;display:block;color:#fff}
.video img{width:100%;height:100%;object-fit:cover}
.video .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;background:var(--acao);display:grid;place-items:center;box-shadow:0 4px 16px rgba(0,0,0,.25)}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video.vazio{display:grid;place-items:center;cursor:default;border:2px dashed var(--linha);background:var(--suave);color:var(--apoio)}

/* ---------- amostra de prompt ---------- */
.amostra{background:var(--cartao);border:1px solid var(--linha);border-radius:var(--raio);padding:14px;display:flex;flex-direction:column;gap:10px;align-self:stretch;justify-content:center}
.amostra p{font:12px/1.6 var(--mono);color:var(--texto)}
.barras{display:flex;flex-direction:column;gap:7px}
.barras i{display:block;height:8px;background:var(--linha);border-radius:2px}
.amostra a{font-size:14px;font-weight:700;color:var(--acao-txt);text-decoration:none}

/* ---------- redes sociais voando ---------- */
.redes-sec{overflow:hidden}
.redes{list-style:none;margin:0;padding:8px 0 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px 8px}
.rede{display:flex;flex-direction:column;align-items:center;gap:10px;animation:voar 5s ease-in-out infinite;animation-delay:var(--d)}
.rede-icone{width:62px;height:62px;border-radius:18px;background:var(--cartao);border:1px solid var(--linha);display:grid;place-items:center;transform:rotate(var(--r));box-shadow:0 14px 28px rgba(22,21,15,.13),0 2px 4px rgba(22,21,15,.06)}
.rede-icone svg{width:30px;height:30px}
.rede-txt{font:800 17px/1 var(--titulo);color:#fff;letter-spacing:-.02em}
.rede .nome{font-size:12px;font-weight:600;text-align:center;line-height:1.25;color:var(--apoio)}
@keyframes voar{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@media (prefers-reduced-motion:reduce){.rede{animation:none}}

/* ---------- grade de vídeos (celular: 2 colunas) ---------- */
.grade{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 12px}
.item{display:flex;flex-direction:column;gap:10px;text-decoration:none;min-width:0}
.item h3{font-size:16px}
.tag{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;font:600 11px/1.3 var(--mono);letter-spacing:.04em;text-transform:uppercase;color:var(--apoio)}
.tag.ok{color:var(--acao-txt)}

/* ---------- passos ---------- */
.passos{display:grid;grid-template-columns:1fr;gap:24px}
.passos div{display:flex;flex-direction:column;gap:6px;padding-left:16px;border-left:3px solid var(--acao)}
.passos b{font:700 13px/1 var(--mono);color:var(--acao-txt)}

/* ---------- preço ---------- */
.preco{display:flex;flex-direction:column;gap:28px}
.cartao-preco{background:var(--cartao);border:1px solid var(--linha);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:20px;box-shadow:0 10px 30px rgba(22,21,15,.06)}
.valor{font:800 52px/1 var(--titulo);letter-spacing:-.03em;display:inline-block;background:var(--acao);padding:6px 10px;border-radius:8px;margin-top:8px}
.valor span{font:500 17px Inter,sans-serif;letter-spacing:0}
.lista{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.lista li{display:flex;gap:12px}
.lista li:before{content:'✓';flex:none;font-weight:800;color:var(--acao-txt)}

/* ---------- dúvidas ---------- */
.faq details{border-top:1px solid var(--linha);padding:18px 0}
.faq details:last-child{border-bottom:1px solid var(--linha)}
.faq summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:16px;min-height:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:'+';font:700 20px/1 var(--mono);color:var(--apoio)}
.faq details[open] summary:after{content:'–'}
.faq details p{margin-top:10px;color:var(--apoio)}

/* ---------- rodapé ---------- */
footer{border-top:1px solid var(--linha);padding:28px 0 40px;font-size:14px;color:var(--apoio)}
footer .w{display:flex;flex-direction:column;gap:14px}
footer nav{display:flex;flex-wrap:wrap;gap:8px 20px}
footer a{text-decoration:none;padding:6px 0}
footer a:hover{color:var(--texto)}

/* ---------- barra fixa de assinatura (só celular, só home) ---------- */
.barra-cta{position:fixed;left:0;right:0;bottom:0;z-index:10;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(251,249,244,.96);border-top:1px solid var(--linha);backdrop-filter:blur(8px)}
body.tem-barra{padding-bottom:84px}
.barra-cta{transition:transform .25s ease}
.barra-cta.escondida{transform:translateY(110%)}

/* ---------- formulários ---------- */
.form{display:flex;flex-direction:column;gap:16px}
label{display:flex;flex-direction:column;gap:6px;font-size:15px;font-weight:500;color:var(--texto)}
input,textarea,select{width:100%;background:var(--cartao);color:var(--texto);border:1.5px solid #CFC8B7;border-radius:10px;padding:13px 14px;font:16px Inter,sans-serif}
textarea{font-family:var(--mono);font-size:14px;line-height:1.6;min-height:160px;resize:vertical}
input:focus,textarea:focus{outline:3px solid var(--acao);outline-offset:0;border-color:var(--texto)}
.caixa{background:var(--cartao);border:1px solid var(--linha);border-radius:18px;padding:24px}
.msg{padding:12px 14px;border-radius:10px;background:#FDECEA;color:#8A1C12;font-size:15px}
.msg.ok{background:#EAF5E1;color:#2D5A12}
.centro{min-height:calc(100vh - 64px);display:flex;align-items:flex-start;padding:24px 0 48px}

/* ---------- aluno: página do vídeo ---------- */
.aula{display:flex;flex-direction:column;gap:28px;padding:16px 20px 64px}
.aula .lado{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:end}
.etapas{list-style:none;margin:0;padding:0;counter-reset:e;display:flex;flex-direction:column}
.etapas li{counter-increment:e;display:grid;grid-template-columns:36px 1fr;gap:6px 12px;padding:20px 0;border-top:1px solid var(--linha)}
.etapas li:before{content:counter(e);grid-row:span 2;width:32px;height:32px;border-radius:50%;background:var(--acao);display:grid;place-items:center;font:800 16px/1 var(--titulo)}
.etapas li b{font-weight:700;font-size:17px;align-self:center}
.etapas li > div{display:flex;flex-direction:column;gap:12px}
.prompt{background:var(--suave);border:1px solid var(--linha);border-radius:12px;padding:16px;font:13px/1.7 var(--mono);white-space:pre-wrap;word-break:break-word;max-height:420px;overflow:auto;color:var(--texto)}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:var(--suave);border:1px solid var(--linha);font:600 12px/1.4 var(--mono)}

/* ---------- admin ---------- */
.tabela{width:100%;border-collapse:collapse;font-size:14px}
.tabela td,.tabela th{border-top:1px solid var(--linha);padding:12px 8px;text-align:left;vertical-align:top}
.tabela th{color:var(--apoio);font-weight:600}
.admin-video{display:flex;flex-direction:column;gap:16px;padding:24px 0;border-top:1px solid var(--linha)}
.admin-video .video{cursor:default;max-width:120px}
.linha-form{display:grid;grid-template-columns:1fr;gap:12px}
.status-ok{color:#2D5A12}.status-erro{color:#8A1C12}
.oculto{display:none!important}

/* =========== a partir de 640px (tablet) =========== */
@media (min-width:640px){
  .w{padding:0 32px}
  .so-desk{display:inline-flex}
  .topo{min-height:76px}
  .topo nav{gap:24px}
  section{padding:80px 0}
  .hero{padding:40px 32px 72px}
  .hero-acoes{flex-direction:row;align-items:center;width:auto;gap:24px}
  .hero-acoes .btn{width:auto}
  .hero-vis{grid-template-columns:260px 1fr;gap:20px;max-width:560px}
  .amostra{padding:20px}
  .amostra p{font-size:13px}
  .grade{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px 20px}
  .redes{gap:44px 24px}
  .rede-icone{width:88px;height:88px;border-radius:24px}
  .rede-icone svg{width:44px;height:44px}
  .rede-txt{font-size:24px}
  .rede .nome{font-size:14px}
  .passos{grid-template-columns:repeat(3,1fr);gap:32px}
  .cartao-preco{padding:36px}
  footer .w{flex-direction:row;justify-content:space-between;align-items:center}
  .barra-cta{display:none}
  body.tem-barra{padding-bottom:0}
  .centro{align-items:center}
  .caixa{padding:36px}
  .aula{padding:24px 32px 96px}
  .linha-form{grid-template-columns:1fr 1fr}
  .admin-video{display:grid;grid-template-columns:120px 1fr;gap:20px}
}

/* =========== a partir de 900px (computador) =========== */
@media (min-width:900px){
  .hero{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:56px 32px 96px}
  .hero-vis{grid-template-columns:1fr 1fr;max-width:none}
  .grade{grid-template-columns:repeat(4,minmax(0,1fr))}
  .redes{grid-template-columns:repeat(8,minmax(0,1fr));gap:24px;padding:24px 0 40px}
  .rede:nth-child(even){margin-top:56px}
  .preco{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
  .aula{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:start}
  .aula .lado{display:flex;flex-direction:column;position:sticky;top:24px}
}