/* Vento Sul Lab · portal. Layout: faixas alternadas creme/papel com blocos Verde Noite; grade de pontos de caderno de laboratório no hero. */
:root{
  --noite:#0E2624; --noite2:#163533; --agua:#2A9D8E; --agua-s:#1E786D; --coral:#F85A3F; --coral-e:#B83A25;
  --creme:#F4E8D8; --papel:#FAF5EC; --tinta:#12201F; --muted:#4A5A58; --muted-d:#A9C4BF; --linha:#D9C7AA;
  --f-display:'Sora','Inter',Arial,sans-serif; --f-body:'Inter',Arial,sans-serif; --f-mono:'JetBrains Mono','Courier New',monospace;
  --r:14px; --max:1180px; color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--creme);color:var(--tinta);font-family:var(--f-body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--agua-s)} a:hover{color:var(--noite)}
:focus-visible{outline:3px solid var(--coral);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--f-display);line-height:1.12;margin:0;text-wrap:balance;color:var(--tinta)}
h1{font-size:clamp(2.6rem,6vw,4.6rem);font-weight:700;letter-spacing:-.02em}
.h1-course{font-size:clamp(2.1rem,4.6vw,3.6rem)}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:600;letter-spacing:-.01em}
h3{font-size:1.2rem;font-weight:600}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
.mono{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
.eyebrow{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--coral-e);margin-bottom:12px}
.lead{font-size:1.18rem;color:var(--muted);max-width:62ch}
.small{font-size:.9rem}.muted{color:var(--muted)}
.sel{user-select:all;font-weight:600}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--noite);color:var(--papel);text-decoration:none;font-family:var(--f-display);font-weight:600;font-size:1rem;padding:14px 24px;border-radius:999px;border:2px solid var(--noite);cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{background:var(--agua-s);border-color:var(--agua-s);color:var(--papel);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--noite)} .btn.ghost:hover{background:var(--noite);color:var(--papel)}
.btn-sm{padding:9px 18px;font-size:.92rem}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--creme) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--linha)}
.topin{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px;flex-wrap:wrap}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-display);font-weight:600;color:var(--tinta);text-decoration:none;font-size:1.05rem}
.logo b{color:var(--coral-e)}
.logo-duo{width:30px;height:30px;position:relative;flex:none}
.logo-duo::before,.logo-duo::after{content:"";position:absolute;width:20px;height:20px;border-radius:50%}
.logo-duo::before{left:0;top:0;background:var(--noite)}.logo-duo::after{right:0;bottom:0;background:var(--agua);mix-blend-mode:multiply}
.menu{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.menu a:not(.btn){color:var(--tinta);text-decoration:none;font-weight:500}
.menu a[aria-current]{color:var(--coral-e)}
.hero{background-image:radial-gradient(color-mix(in srgb,var(--tinta) 16%,transparent) 1.4px,transparent 1.5px);background-size:28px 28px;padding-block:clamp(48px,9vw,110px) clamp(40px,7vw,90px);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:40px;align-items:center}
.hero-copy{display:flex;flex-direction:column;gap:22px;min-width:0}
.hl{color:var(--agua-s);position:relative;white-space:nowrap}
.hl::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.14em;background:var(--coral);border-radius:4px;z-index:-1}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.facts{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.facts li{border:1.5px solid var(--linha);border-radius:999px;padding:6px 14px;background:var(--papel)}
.hero-art svg{width:100%;height:auto;display:block}
.hero-art svg circle:first-child{fill:var(--noite)}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs{color:var(--muted)}
.band{padding-block:clamp(56px,8vw,96px)}
.band.paper{background:var(--papel)}
.band.dark{background:var(--noite);color:var(--papel)}
.band.dark h2{color:var(--papel)}
.on-dark{color:var(--muted-d)}.eyebrow.on-dark{color:var(--coral)}
.sec-head{margin-bottom:36px;max-width:760px}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.chip{font:500 .92rem var(--f-body);background:var(--papel);color:var(--tinta);border:1.5px solid var(--linha);border-radius:999px;padding:8px 16px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--noite);color:var(--papel);border-color:var(--noite)}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.ccard{background:var(--papel);border:1.5px solid var(--linha);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:12px;position:relative;transition:border-color .15s,transform .15s}
.ccard:hover{border-color:var(--agua);transform:translateY(-2px)}
.ccard h3 a{color:var(--tinta);text-decoration:none}
.ccard h3 a::after{content:"";position:absolute;inset:0;border-radius:var(--r)}
.ccard p{color:var(--muted);font-size:.98rem}
.ccard-top{display:flex;justify-content:space-between;align-items:center;gap:8px}
.tag{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;background:var(--noite);color:var(--papel);padding:4px 10px;border-radius:999px}
.ccard-meta{margin-top:auto;color:var(--muted)}
.more{font-family:var(--f-display);font-weight:600;text-decoration:none}
.ccard[hidden]{display:none}
.trilhas{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.trilha{border-top:3px solid var(--noite);padding-top:18px;display:flex;flex-direction:column;gap:10px}
.trilha:nth-child(2){border-color:var(--agua)}.trilha:nth-child(3){border-color:var(--coral)}
.trilha p{color:var(--muted)}.tnum{color:var(--coral-e)}
.mgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 48px}
.mgrid>div{display:flex;flex-direction:column;gap:8px}.mgrid p{color:var(--muted)}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:s}
.steps li{counter-increment:s;display:flex;flex-direction:column;gap:8px;background:var(--creme);border-radius:var(--r);padding:22px}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:var(--f-display);font-weight:700;font-size:1.6rem;color:var(--agua-s)}
.steps li p.mono{color:var(--tinta)}
.steps-col{grid-template-columns:1fr;margin-top:24px}.steps-col li{background:var(--papel)}
.split{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:48px;align-items:start}
.split>div:first-child{display:flex;flex-direction:column;gap:18px;min-width:0}
.note-box{background:var(--noite);color:var(--papel);border-radius:var(--r);padding:28px;display:flex;flex-direction:column;gap:12px;min-width:0}
.note-box h3{color:var(--papel)}.note-box p{color:var(--muted-d)}.note-box .eyebrow{color:var(--coral)}
.note-box a{color:var(--papel)}
.promise{font-size:clamp(1.5rem,2.8vw,2.1rem);font-weight:500;line-height:1.3}
.ticks{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 40px}
.ticks li{position:relative;padding-left:30px}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;background:var(--agua);box-shadow:inset 0 0 0 4px var(--papel),0 0 0 1.5px var(--agua)}
.small-ticks{grid-template-columns:1fr;gap:10px}.small-ticks li{color:var(--muted-d)}
.small-ticks li::before{box-shadow:inset 0 0 0 4px var(--noite),0 0 0 1.5px var(--agua)}
.modules{list-style:none;padding:0;margin:0;border-top:1.5px solid var(--linha)}
.modules li{display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:20px;align-items:start;padding-block:22px;border-bottom:1.5px solid var(--linha)}
.modules p{color:var(--muted);margin-top:6px;max-width:68ch}
.mnum{font-family:var(--f-display);font-size:1.5rem;font-weight:700;color:var(--agua-s);letter-spacing:0}
.mdur{background:var(--papel);border:1.5px solid var(--linha);border-radius:999px;padding:4px 12px;white-space:nowrap}
.tscroll{overflow-x:auto}
.tbl{border-collapse:collapse;width:100%;font-size:.95rem;min-width:480px}
.tbl th{text-align:left;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);border-bottom:2px solid var(--noite);padding:10px 12px 10px 0}
.tbl td{padding:12px 12px 12px 0;border-bottom:1px solid var(--linha);vertical-align:top}
.tbl td:first-child{font-weight:600;white-space:nowrap}
.qa{display:flex;flex-direction:column;border-top:1.5px solid var(--linha);max-width:820px}
details{border-bottom:1.5px solid var(--linha);padding-block:18px}
summary{cursor:pointer;font-family:var(--f-display);font-weight:600;font-size:1.08rem;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::after{content:"+";color:var(--coral-e);font-size:1.4rem;line-height:1}
details[open] summary::after{content:"−"}
details p{color:var(--muted);margin-top:10px;max-width:68ch}
.list-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.list-grid>div{display:flex;flex-direction:column;gap:16px}
.form{background:var(--papel);color:var(--tinta);border-radius:var(--r);padding:28px;display:flex;flex-direction:column;gap:6px;min-width:0}
.form label{font-weight:600;font-size:.92rem;margin-top:8px}
.form input,.form select,.form textarea{font:inherit;font-size:1rem;padding:12px 14px;border:1.5px solid var(--linha);border-radius:10px;background:#fff;color:var(--tinta);width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--agua-s);box-shadow:0 0 0 3px color-mix(in srgb,var(--agua) 30%,transparent)}
.form .check{display:flex;gap:10px;align-items:flex-start;font-weight:400;margin-block:10px}
.form .check input{width:auto;margin-top:5px}
.form .btn{margin-top:8px;justify-content:center}
.form-msg{font-size:.92rem;min-height:1.4em}
.form-msg.err{color:var(--coral-e)}.form-msg.ok{color:var(--agua-s)}
.clist{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.clist li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--noite2);padding-bottom:10px}
.clist .mono{color:var(--muted-d);white-space:nowrap}
.foot{background:var(--noite);color:var(--muted-d);padding-block:56px 28px;border-top:4px solid var(--coral)}
.footin{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.footin>div{display:flex;flex-direction:column;gap:10px;min-width:0}
.foot a{color:var(--papel);text-decoration:none}.foot a:hover{color:var(--coral)}
.foot .logo{color:var(--papel)}.foot .logo b{color:var(--coral)}
.foot .eyebrow{color:var(--coral)}
.foot .logo-duo::before{background:var(--papel)}
.legal{margin-top:40px;font-size:.85rem;border-top:1px solid var(--noite2);padding-top:20px}
@media (max-width:920px){
  .hero-grid,.split,.list-grid{grid-template-columns:1fr}
  .hero-art{max-width:300px;justify-self:end;margin-top:-10px}
  .cards,.trilhas{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footin{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  body{font-size:16px}
  .cards,.trilhas,.mgrid,.steps,.ticks,.footin{grid-template-columns:1fr}
  .menu{gap:14px}.menu a:not(.btn){font-size:.95rem}
  .hero-art{display:none}
  .modules li{grid-template-columns:44px minmax(0,1fr)}
  .mdur{grid-column:2;justify-self:start}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.ccard{transition:none}.btn:hover,.ccard:hover{transform:none}}