/* Curso de IA Autônoma — sistema claro "Gelo" (euriler-gelo-design), o mesmo da página de aquisição
   digitaldofuturo.ai, para leitura fácil e conversão. Currículo em lista precisa, com duração por aula
   (referência popular-web-designs/linear.app: hierarquia por peso e linhas finas, um único acento). */
.curso{
  --ice-0:#F4F7FB; --ice-1:#EAF0F7; --ink:#0B1422; --slate:#334358; --silver:#5F7189; --hair:rgba(96,120,150,.2);
  --electric:#2563EB; --electric-2:#3B82F6; --electric-hi:#3F84F5; --electric-deep:#1D4FC4; --cyan:#06B6D4; --cyan-l:#67E8F9;
  --navy:#0D1626; --navy-2:#111C30; --navy-card:#121D31; --on-navy:#EDF1F6; --on-navy-soft:#A9B8CB; --navy-line:rgba(160,185,215,.14);
  --shadow-cold:0 30px 60px -20px rgba(20,44,80,.18),0 6px 16px -6px rgba(20,44,80,.08);
  background:var(--ice-0); color:var(--ink);
}
.curso :focus-visible{outline-color:var(--electric)}
.chapter{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--electric)}
.chapter--dark{color:var(--cyan-l)}
.eletrico{background:linear-gradient(92deg,var(--electric-deep) 0%,var(--electric-2) 55%,var(--cyan) 110%);-webkit-background-clip:text;background-clip:text;color:transparent}
.ciano{color:var(--cyan-l)}

/* topo */
.top{position:sticky;top:0;z-index:20;background:rgba(244,247,251,.82);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--hair)}
.print .top{position:relative}
.top-in{display:flex;align-items:center;gap:20px;height:68px}
.brand{font-weight:500;font-size:13px;letter-spacing:.32em;text-decoration:none;color:var(--ink)}
.top-prod{font-size:14px;color:var(--slate);padding-left:20px;border-left:1px solid var(--hair)}
.top-cta{margin-left:auto;font-size:14px;font-weight:600;text-decoration:none;padding:10px 18px;border-radius:999px;background:var(--ink);color:#fff}
.top-cta:hover{background:#1b2740}

/* hero */
.hero{position:relative;overflow:hidden;padding:clamp(56px,9vh,110px) 0 clamp(72px,10vh,120px);
  background:radial-gradient(60% 70% at 85% 10%,rgba(176,203,232,.6) 0%,rgba(176,203,232,0) 70%),
             radial-gradient(50% 60% at 0% 100%,rgba(196,214,236,.55) 0%,rgba(196,214,236,0) 70%),
             radial-gradient(40% 40% at 70% 60%,rgba(6,182,212,.08) 0%,rgba(6,182,212,0) 70%),var(--ice-0)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:48px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.66);border:1px solid rgba(255,255,255,.92);box-shadow:0 1px 0 rgba(255,255,255,.9) inset,var(--shadow-cold);font-size:12.5px;font-weight:500;color:var(--slate)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(6,182,212,.9)}
.hero h1{font-size:clamp(40px,5.4vw,72px);line-height:1.02;letter-spacing:-.025em;margin:22px 0 22px;max-width:15ch}
.hero h1 .eletrico{display:block}
.sub{font-size:clamp(17px,1.6vw,19px);line-height:1.55;color:var(--slate);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px 26px;margin-top:32px}
.btn-cta{border-radius:16px;color:#fff;background:linear-gradient(180deg,var(--electric-hi) 0%,var(--electric-deep) 100%);box-shadow:0 1px 0 rgba(255,255,255,.4) inset,0 -2px 0 rgba(9,32,86,.35) inset,0 20px 44px -14px rgba(29,79,196,.55)}
.btn-cta:hover{box-shadow:0 1px 0 rgba(255,255,255,.4) inset,0 -2px 0 rgba(9,32,86,.35) inset,0 26px 56px -14px rgba(29,79,196,.66)}
.link-under{color:var(--ink);font-weight:600;text-decoration:none;border-bottom:1.5px solid var(--electric);padding-bottom:2px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:40px;padding-top:24px;border-top:1px solid var(--hair);color:var(--slate);font-size:15px}
.hero-meta strong{font-family:var(--display);font-weight:600;font-size:26px;color:var(--ink);margin-right:6px;letter-spacing:-.02em}
.hero-art{position:relative}
.stack{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;align-items:end}
.stack picture{display:block;border-radius:14px;overflow:hidden;box-shadow:0 30px 50px -24px rgba(13,22,38,.55);border:1px solid rgba(255,255,255,.7)}
.stack picture:nth-child(1){transform:translateY(24px)}
.stack picture:nth-child(3){transform:translateY(-18px)}
.stack picture:nth-child(4){transform:translateY(10px)}
.stack img{width:100%;height:auto}
@media (min-width:960px){
  .hero-grid{grid-template-columns:1.1fr .9fr;gap:56px}
  .stack{grid-template-columns:repeat(2,1fr);gap:16px;max-width:460px;margin-left:auto}
  .stack picture:nth-child(1){transform:translateY(0)}
  .stack picture:nth-child(2){transform:translateY(48px)}
  .stack picture:nth-child(3){transform:translateY(-8px)}
  .stack picture:nth-child(4){transform:translateY(40px)}
}

/* seções */
.contraste,.faz,.aulas,.bonus,.fit,.oferta,.autor,.faq{padding:var(--section) 0}
.ice{background:var(--ice-0)}
.ice-1{background:linear-gradient(180deg,var(--ice-1) 0%,var(--ice-0) 100%)}
.navy{background:radial-gradient(80% 60% at 50% 0%,rgba(30,58,95,.5) 0%,rgba(13,22,38,0) 70%),var(--navy);color:var(--on-navy)}
.sec-head{margin-bottom:clamp(36px,5vw,64px)}
.sec-head h2,.contraste h2,.fit h2,.autor h2{font-size:clamp(30px,4.3vw,52px);line-height:1.06;margin-top:14px;max-width:22ch}
.sec-head--row{display:grid;gap:20px}
.sec-note{color:var(--slate);max-width:44ch;font-size:16px}
@media (min-width:960px){.sec-head--row{grid-template-columns:1.5fr 1fr;align-items:end}}
.lead-dark{color:var(--on-navy-soft);font-size:clamp(17px,1.5vw,19px);line-height:1.6;max-width:54ch;margin-top:22px}
.lead-dark.small{font-size:15px}

/* contraste 2D/3D */
.con-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
.con-fig{margin:0}
.con-fig picture{display:block;border-radius:18px;overflow:hidden;border:1px solid var(--navy-line);box-shadow:0 40px 80px -30px rgba(0,0,0,.7)}
.con-fig figcaption{margin-top:10px;font-size:13.5px;color:var(--on-navy-soft)}
@media (min-width:960px){.con-grid{grid-template-columns:1fr 1.15fr;gap:72px}}

/* o que faz */
.tasks{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:48px}
.tasks li{padding:18px 20px 18px 50px;position:relative;border-radius:16px;background:rgba(255,255,255,.66);border:1px solid rgba(255,255,255,.92);box-shadow:0 1px 0 rgba(255,255,255,.9) inset,0 18px 40px -26px rgba(20,44,80,.3);font-weight:500}
.tasks li::before{content:"→";position:absolute;left:20px;top:17px;color:var(--electric);font-weight:600}
@media (min-width:760px){.tasks{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1100px){.tasks{grid-template-columns:repeat(3,1fr)}}
.ladder{display:grid;grid-template-columns:1fr;gap:0;border-radius:20px;overflow:hidden;background:var(--navy);color:var(--on-navy)}
.ladder li{padding:20px 22px;display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--navy-line);font-family:var(--display);font-weight:500;font-size:18px}
.ladder li:last-child{border-bottom:0;background:linear-gradient(90deg,rgba(6,182,212,.18),rgba(6,182,212,0))}
.ladder span{flex:0 0 30px;height:30px;border-radius:50%;display:grid;place-items:center;font-family:var(--body);font-size:13px;font-weight:600;background:var(--navy-2);border:1px solid var(--navy-line);color:var(--cyan-l)}
@media (min-width:1000px){.ladder{grid-template-columns:repeat(5,1fr)}.ladder li{flex-direction:column;align-items:flex-start;border-bottom:0;border-right:1px solid var(--navy-line);padding:26px 22px;font-size:19px;line-height:1.2}.ladder li:last-child{border-right:0}}

/* aulas */
.mods{display:grid;grid-template-columns:1fr;gap:20px}
.mod{background:#fff;border:1px solid var(--hair);border-radius:22px;padding:clamp(20px,2.6vw,32px);box-shadow:var(--shadow-cold)}
.mod-head{display:flex;gap:20px;align-items:flex-start;margin-bottom:20px}
.mod-head picture{flex:0 0 76px}
.mod-cover{width:76px;height:114px;border-radius:12px;object-fit:cover}
.mod-n{font-size:12px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--electric)}
.mod h3{font-size:clamp(24px,2.4vw,30px);margin:6px 0 8px}
.mod-d{color:var(--slate);font-size:15.5px;line-height:1.55}
.lessons{counter-reset:l;border-top:1px solid var(--hair)}
.lessons li{counter-increment:l;display:flex;align-items:baseline;gap:14px;padding:11px 0;border-bottom:1px solid var(--hair);font-size:15.5px}
.lessons li::before{content:counter(l,decimal-leading-zero);font-size:12.5px;font-weight:600;color:var(--silver);min-width:22px}
.lessons span{flex:1}
.lessons time{font-variant-numeric:tabular-nums;font-size:14px;color:var(--silver)}
.challenges{margin-top:16px;padding:14px 16px;border-radius:12px;background:var(--ice-0);font-size:14.5px;color:var(--slate)}
.challenges strong{display:block;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--electric-deep);margin-bottom:4px}
@media (min-width:1000px){.mods{display:block;columns:2;column-gap:20px}.mod{break-inside:avoid;margin-bottom:20px}.mod-head picture{flex-basis:96px}.mod-cover{width:96px;height:144px}}

/* bônus */
.bcards{display:grid;grid-template-columns:1fr;gap:20px}
.bcard{border-radius:20px;overflow:hidden;background:linear-gradient(180deg,var(--navy-card) 0%,var(--navy) 100%);border:1px solid var(--navy-line);box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.bcard picture{display:block;aspect-ratio:16/9;overflow:hidden}
.bcard img{width:100%;height:100%;object-fit:cover}
.bc-body{padding:22px 24px 26px}
.bc-n{font-size:12px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan-l)}
.bcard h3{font-size:22px;margin:8px 0 10px;line-height:1.2}
.bcard p:last-child{color:var(--on-navy-soft);font-size:15px}
@media (min-width:960px){.bcards{grid-template-columns:repeat(3,1fr)}}

/* para quem */
.fit-grid{display:grid;grid-template-columns:1fr;gap:36px}
.fit-cols{display:grid;grid-template-columns:1fr;gap:16px}
.fit-yes,.fit-no{padding:26px;border-radius:20px;background:rgba(255,255,255,.66);border:1px solid rgba(255,255,255,.92);box-shadow:var(--shadow-cold)}
.fit-no{background:var(--ice-1);box-shadow:none;border-color:var(--hair)}
.fit h3{font-size:13px;font-family:var(--body);font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--electric);margin-bottom:12px}
.fit-no h3{color:var(--silver)}
.fit li{padding:10px 0;border-top:1px solid var(--hair);color:var(--slate)}
@media (min-width:960px){.fit-grid{grid-template-columns:.9fr 1.3fr;align-items:start}.fit-cols{grid-template-columns:1fr 1fr}}

/* oferta */
.of-wrap{display:flex;justify-content:center}
.offer{width:100%;max-width:640px;padding:clamp(28px,4.5vw,48px);border-radius:28px;background:#fff;border:1px solid var(--hair);box-shadow:0 40px 80px -30px rgba(20,44,80,.28);position:relative;overflow:hidden}
.offer::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--electric),var(--cyan))}
.offer h2{font-size:clamp(28px,3.4vw,40px);margin:10px 0 22px}
.incl{border-top:1px solid var(--hair);margin-bottom:26px}
.incl li{padding:12px 0 12px 28px;border-bottom:1px solid var(--hair);position:relative;font-size:16px}
.incl li::before{content:"";position:absolute;left:4px;top:20px;width:8px;height:8px;border-radius:50%;background:var(--electric)}
.price{margin-bottom:22px}
.p-main{font-family:var(--display);font-weight:600;font-size:clamp(56px,6.5vw,84px);line-height:.95;letter-spacing:-.03em}
.cur{font-size:.36em;vertical-align:.95em;margin-right:4px;color:var(--silver);letter-spacing:0}
.p-alt{color:var(--slate);margin-top:8px}
.btn-wide{width:100%;font-size:17px;min-height:60px}
.guarantee{margin-top:16px;font-size:14.5px;color:var(--slate);text-align:center}
.extra{margin-top:18px;padding:14px 16px;border-radius:12px;background:var(--ice-0);border:1px solid var(--hair);font-size:14.5px;color:var(--slate)}

/* autor */
.autor-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
.autor-foto{margin:0;border-radius:22px;overflow:hidden;aspect-ratio:4/5;max-height:640px}
.autor-foto picture{display:block;height:100%}
.autor-foto img{width:100%;height:100%;object-fit:cover;object-position:50% 25%}
.quote-dark{font-family:var(--display);font-weight:500;font-size:clamp(22px,2.2vw,28px);line-height:1.25;margin:28px 0 4px;color:var(--on-navy);max-width:28ch}
@media (min-width:900px){.autor-grid{grid-template-columns:.8fr 1.2fr;gap:72px}}

/* faq */
.faq-in{max-width:860px}
.faq h2{font-size:clamp(30px,3.6vw,44px);margin:12px 0 28px}
.qs{border-top:1px solid var(--hair);margin-bottom:40px}
.qs details{border-bottom:1px solid var(--hair)}
.qs summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font-family:var(--display);font-weight:600;font-size:19px;position:relative}
.qs summary::-webkit-details-marker{display:none}
.qs summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font-family:var(--body);font-weight:400;font-size:24px;color:var(--electric)}
.qs details[open] summary::after{content:"–"}
.qs details p{padding:0 0 22px;color:var(--slate);max-width:64ch;font-size:15.5px}

.curso .site-foot{background:var(--navy);color:var(--on-navy-soft)}
.curso .foot-note{width:100%;font-size:13px}
@media (max-width:640px){.top-prod{display:none}.hero h1{max-width:none}}