/* DC EXPRESS — site institucional
   Sistema: branco, cinza claro e preto; texto grafite; um único azul de ação. */
:root {
  --bg: #ffffff;
  --bg-2: #f5f5f7;
  --black: #000000;
  --text: #1d1d1f;
  --text-2: #6e6e73;
  --text-3: #86868b;
  --line: #d2d2d7;
  --blue: #0a66d8;
  --blue-h: #0855b8;
  --blue-dark: #2997ff;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Arial, sans-serif;
  --narrow: 980px;
  --wide: 1240px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); font-size: 17px; line-height: 1.47; letter-spacing: -.011em; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; overflow-x: hidden; font-feature-settings: "cv11", "ss01"; }
img { display: block; max-width: 100%; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 3px solid rgba(10,102,216,.55); outline-offset: 3px; border-radius: 6px; }
.narrow { width: min(var(--narrow), 100% - 44px); margin-inline: auto; }
.wide { width: min(var(--wide), 100% - 24px); margin-inline: auto; }
.center { text-align: center; }

/* Tipografia */
.t-hero { font-size: clamp(44px, 7.4vw, 96px); line-height: 1.02; font-weight: 700; letter-spacing: -.045em; }
.t-xl { font-size: clamp(38px, 5.6vw, 72px); line-height: 1.04; font-weight: 700; letter-spacing: -.04em; }
.t-l { font-size: clamp(30px, 3.8vw, 48px); line-height: 1.08; font-weight: 700; letter-spacing: -.032em; }
.t-m { font-size: clamp(24px, 2.4vw, 32px); line-height: 1.12; font-weight: 700; letter-spacing: -.025em; }
.t-s { font-size: 21px; line-height: 1.2; font-weight: 600; letter-spacing: -.018em; }
.sub { font-size: clamp(19px, 1.9vw, 24px); line-height: 1.35; font-weight: 500; letter-spacing: -.02em; color: var(--text-2); }
.copy { font-size: 17px; color: var(--text-2); }
.copy strong { color: var(--text); font-weight: 600; }
.dark .sub, .dark .copy { color: #a1a1a6; }
.dark .copy strong { color: #f5f5f7; }

/* Ações */
.actions { display: flex; gap: 26px; align-items: center; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 11px 22px; border-radius: 980px; background: var(--blue); color: #fff; font-size: 17px; font-weight: 500; letter-spacing: -.01em; border: 0; cursor: pointer; transition: background .2s; }
.btn:hover { background: var(--blue-h); text-decoration: none; }
.btn.small { min-height: 30px; padding: 5px 14px; font-size: 13.5px; }
.btn.ghost { background: transparent; color: var(--blue); box-shadow: inset 0 0 0 1px var(--blue); }
.btn.ghost:hover { background: var(--blue); color: #fff; }
.link { font-size: 17px; font-weight: 500; display: inline-flex; align-items: center; gap: 4px; }
.link::after { content: ""; width: 7px; height: 7px; border: solid currentColor; border-width: 1.6px 1.6px 0 0; transform: rotate(45deg); margin-left: 2px; }
.dark .link { color: var(--blue-dark); }

/* Navegação */
.nav { position: sticky; top: 0; z-index: 100; height: 52px; background: rgba(251,251,253,.8); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid rgba(0,0,0,.08); }
.nav .wide { height: 100%; display: flex; align-items: center; gap: 36px; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--text); flex: none; }
.brand:hover { text-decoration: none; }
.brand img { height: 26px; width: auto; }
.brand span { font-size: 17px; font-weight: 700; letter-spacing: -.02em; }
.menu { display: flex; gap: 30px; list-style: none; margin: 0 auto; }
.menu a { color: var(--text); font-size: 13.5px; opacity: .88; }
.menu a:hover { opacity: 1; text-decoration: none; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.nav-right .up { font-size: 13.5px; color: var(--text); opacity: .88; display: inline-flex; align-items: center; gap: 6px; }
.nav-right .up svg { width: 15px; height: 15px; }
.burger { display: none; width: 44px; height: 44px; margin-left: auto; background: none; border: 0; cursor: pointer; position: relative; }
.burger i { position: absolute; left: 13px; right: 13px; height: 1.5px; background: var(--text); transition: transform .3s, top .3s; }
.burger i:first-child { top: 18px; } .burger i:last-child { top: 25px; }
.nav.open .burger i:first-child { top: 21.5px; transform: rotate(45deg); } .nav.open .burger i:last-child { top: 21.5px; transform: rotate(-45deg); }
@media (max-width: 900px) {
  .menu, .nav-right { display: none; }
  .burger { display: block; }
  .nav.open { background: #fff; }
  .nav.open .menu { display: flex; flex-direction: column; gap: 0; position: fixed; top: 52px; left: 0; right: 0; bottom: 0; background: #fff; padding: 18px 32px; margin: 0; overflow: auto; }
  .nav.open .menu a { display: block; font-size: 28px; font-weight: 600; letter-spacing: -.025em; padding: 9px 0; opacity: 1; }
  .nav.open .menu .m-only { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
  .nav.open .menu .m-only a { font-size: 17px; padding: 11px 22px; }
}
.menu .m-only { display: none; }

/* Faixa de aviso */
.notice { background: var(--bg-2); text-align: center; font-size: 14px; color: var(--text); padding: 13px 20px; }

/* Hero */
.hero { padding: 72px 0 0; text-align: center; overflow: hidden; }
.hero .name { font-size: clamp(19px, 2vw, 24px); font-weight: 600; letter-spacing: -.02em; color: var(--text); margin-bottom: 10px; }
.hero h1 { max-width: 900px; margin: 0 auto; }
.hero .sub { max-width: 640px; margin: 22px auto 30px; }
.hero-media { margin: 64px auto 0; width: min(1440px, 100%); }
.hero-media img { width: 100%; height: min(70vw, 760px); object-fit: cover; object-position: 50% 55%; }
@media (prefers-reduced-motion: no-preference) {
  .hero .name, .hero h1, .hero .sub, .hero .actions { animation: rise 1s cubic-bezier(.2,.7,.2,1) both; }
  .hero h1 { animation-delay: .08s; } .hero .sub { animation-delay: .18s; } .hero .actions { animation-delay: .26s; }
  .hero-media img { animation: settle 1.6s cubic-bezier(.2,.7,.2,1) .15s both; }
}
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes settle { from { opacity: 0; transform: scale(1.06); } to { opacity: 1; transform: none; } }

/* Seções */
.sec { padding: 130px 0; }
.gray { background: var(--bg-2); }
.dark { background: var(--black); color: #f5f5f7; }
.sec-head { margin-bottom: 56px; }
.sec-head .sub { margin-top: 18px; max-width: 680px; }
.sec-head.center .sub { margin-inline: auto; }

/* Destaques (carrossel) */
.rail-wrap { position: relative; }
.rail { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: max(22px, calc((100vw - var(--wide)) / 2)); padding: 4px max(22px, calc((100vw - var(--wide)) / 2)) 30px; scrollbar-width: none; }
.rail::-webkit-scrollbar { display: none; }
.card { flex: 0 0 min(372px, 82vw); scroll-snap-align: start; border-radius: 28px; overflow: hidden; background: #fff; position: relative; height: 560px; display: flex; flex-direction: column; }
.card .cap { padding: 32px 30px 0; }
.card .cap p:first-child { font-size: 15px; font-weight: 600; color: var(--text-2); margin-bottom: 6px; }
.card .cap h3 { font-size: 26px; line-height: 1.12; font-weight: 700; letter-spacing: -.025em; }
.card img { margin-top: auto; width: 100%; height: 330px; object-fit: cover; }
.card.full { color: #fff; }
.card.full img { position: absolute; inset: 0; height: 100%; margin: 0; }
.card.full::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.55), transparent 45%); }
.card.full .cap { position: relative; z-index: 1; }
.card.full .cap p:first-child { color: rgba(255,255,255,.8); }
.rail-ctrl { display: flex; justify-content: flex-end; gap: 14px; width: min(var(--wide), 100% - 44px); margin: 0 auto; }
.rail-ctrl button { width: 44px; height: 44px; border-radius: 50%; border: 0; background: #e8e8ed; color: var(--text); cursor: pointer; display: grid; place-items: center; transition: background .2s, opacity .2s; }
.rail-ctrl button:hover { background: #dcdce1; }
.rail-ctrl button:disabled { opacity: .4; cursor: default; }
.rail-ctrl svg { width: 18px; height: 18px; }

/* Apostilas (seção escura) */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.feature-img { border-radius: 28px; overflow: hidden; aspect-ratio: 4/5; }
.feature-img img { width: 100%; height: 100%; object-fit: cover; }
.feature .sub { margin: 22px 0 34px; }
.specs { display: grid; grid-template-columns: 1fr 1fr; gap: 34px 30px; border-top: 1px solid #333336; padding-top: 34px; }
.specs b { display: block; font-size: 28px; font-weight: 700; letter-spacing: -.03em; line-height: 1.1; color: #f5f5f7; }
.specs span { display: block; font-size: 14px; color: #a1a1a6; margin-top: 6px; }
.feature .actions { justify-content: flex-start; margin-top: 44px; }
@media (max-width: 900px) { .feature { grid-template-columns: 1fr; gap: 50px; } .feature-img { aspect-ratio: 4/3; } }

/* Blocos de produto */
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tile { background: var(--bg-2); border-radius: 0; overflow: hidden; text-align: center; padding: 54px 30px 0; display: flex; flex-direction: column; align-items: center; min-height: 600px; }
.tile.w { background: #fff; }
.tile h3 { font-size: clamp(30px, 3.2vw, 40px); font-weight: 700; letter-spacing: -.035em; line-height: 1.08; }
.tile p { font-size: clamp(17px, 1.6vw, 21px); color: var(--text); margin: 8px auto 16px; max-width: 420px; letter-spacing: -.015em; }
.tile .actions { gap: 22px; }
.tile .ph { margin-top: auto; width: calc(100% + 60px); height: 340px; margin-left: -30px; margin-right: -30px; }
.tile .ph img { width: 100%; height: 100%; object-fit: cover; }
.tile.dk { background: #000; color: #f5f5f7; }
.tile.dk p { color: #f5f5f7; }
.tile.dk .link { color: var(--blue-dark); }
@media (max-width: 760px) { .tiles { grid-template-columns: 1fr; } .tile { min-height: 520px; padding-top: 44px; } .tile .ph { height: 280px; } }

/* Instituições */
.inst { display: grid; grid-template-columns: 1fr 1.05fr; gap: 80px; align-items: center; }
.inst ul { list-style: none; margin-top: 34px; border-top: 1px solid var(--line); }
.inst li { padding: 20px 0; border-bottom: 1px solid var(--line); }
.inst li b { display: block; font-size: 19px; font-weight: 600; letter-spacing: -.02em; }
.inst li span { display: block; color: var(--text-2); font-size: 16px; margin-top: 4px; }
.inst .actions { justify-content: flex-start; margin-top: 34px; }
.panel { background: #fff; border-radius: 24px; padding: 28px; box-shadow: 0 30px 60px -30px rgba(0,0,0,.18), 0 0 0 1px rgba(0,0,0,.04); }
.panel-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; }
.panel-top b { font-size: 19px; font-weight: 700; letter-spacing: -.02em; }
.panel-top span { font-size: 13px; color: var(--text-3); }
.row { display: grid; grid-template-columns: 64px 1fr auto; gap: 14px; align-items: center; padding: 15px 0; border-top: 1px solid #ececf0; }
.row .rq { font-size: 13px; font-weight: 600; color: var(--text-2); font-variant-numeric: tabular-nums; }
.row .t b { display: block; font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
.row .t span { font-size: 13px; color: var(--text-2); }
.pill { font-size: 12.5px; font-weight: 600; padding: 5px 11px; border-radius: 980px; white-space: nowrap; }
.pill.a { background: #e8f1fd; color: #0a5bc4; } .pill.b { background: #fff4e0; color: #9a5b00; } .pill.c { background: #f3e9fb; color: #7a3fb0; } .pill.d { background: #e6f6ea; color: #1d7a3a; }
.panel-foot { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; border-top: 1px solid #ececf0; padding-top: 16px; margin-top: 2px; font-size: 13.5px; color: var(--text-2); }
.panel-foot b { color: var(--text); font-weight: 600; }
.bar { height: 6px; border-radius: 6px; background: #ececf0; margin-top: 7px; overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 6px; background: var(--blue); }
@media (max-width: 900px) { .inst { grid-template-columns: 1fr; gap: 50px; } }
@media (max-width: 460px) { .row { grid-template-columns: 1fr auto; } .row .rq { grid-column: 1 / -1; } .panel { padding: 22px 18px; } }

/* Criação (imagem cheia) */
.banner { position: relative; min-height: 720px; display: flex; align-items: flex-end; color: #fff; overflow: hidden; }
.banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 40%; }
.banner::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,0,0,.78) 0%, rgba(0,0,0,.35) 45%, rgba(0,0,0,0) 70%); }
.banner .narrow { position: relative; z-index: 1; padding-bottom: 84px; }
.banner .sub { color: rgba(255,255,255,.82); max-width: 620px; margin: 18px 0 26px; }
.banner .actions { justify-content: flex-start; }
.banner .link { color: #fff; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.tags span { font-size: 14px; padding: 7px 14px; border-radius: 980px; background: rgba(255,255,255,.14); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }

/* Acabamentos */
.finish { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.finish figure { border-radius: 24px; overflow: hidden; background: #fff; }
.finish img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.finish figcaption { padding: 22px 24px 26px; }
.finish figcaption b { display: block; font-size: 19px; font-weight: 600; letter-spacing: -.02em; }
.finish figcaption span { display: block; color: var(--text-2); font-size: 15px; margin-top: 4px; }
.also { text-align: center; color: var(--text-2); font-size: 15px; margin-top: 30px; }
@media (max-width: 820px) { .finish { grid-template-columns: 1fr; } }

/* Como pedir */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; counter-reset: s; }
.step { counter-increment: s; }
.step::before { content: counter(s); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid var(--text); font-size: 16px; font-weight: 600; margin-bottom: 22px; }
.step b { display: block; font-size: 21px; font-weight: 600; letter-spacing: -.02em; }
.step span { display: block; color: var(--text-2); font-size: 16px; margin-top: 6px; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .steps { grid-template-columns: 1fr; gap: 30px; } }

/* Envio de arquivos */
.upload { background: #fff; border-radius: 30px; padding: 70px 40px; text-align: center; }
.upload .ico { width: 64px; height: 64px; margin: 0 auto 24px; border-radius: 18px; background: var(--bg-2); display: grid; place-items: center; color: var(--blue); }
.upload .ico svg { width: 30px; height: 30px; }
.upload .sub { max-width: 560px; margin: 16px auto 30px; }
.tips { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 56px; text-align: left; border-top: 1px solid var(--line); }
.tips div { padding: 24px 22px 0 0; }
.tips div + div { padding-left: 22px; border-left: 1px solid var(--line); }
.tips b { display: block; font-size: 16px; font-weight: 600; }
.tips span { display: block; font-size: 14.5px; color: var(--text-2); margin-top: 4px; }
@media (max-width: 860px) { .tips { grid-template-columns: 1fr 1fr; } .tips div:nth-child(3) { border-left: 0; padding-left: 0; } .tips div:nth-child(n+3) { margin-top: 20px; } .upload { padding: 50px 22px; } }
@media (max-width: 460px) { .tips { grid-template-columns: 1fr; } .tips div, .tips div + div { padding-left: 0; border-left: 0; } .tips div + div { margin-top: 18px; } }

/* Compromissos */
.pledge { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.pledge div { padding: 0 28px; }
.pledge div + div { border-left: 1px solid #333336; }
.pledge b { display: block; font-size: 24px; font-weight: 700; letter-spacing: -.025em; }
.pledge span { display: block; color: #a1a1a6; font-size: 15.5px; margin-top: 8px; }
@media (max-width: 900px) { .pledge { grid-template-columns: 1fr 1fr; gap: 40px 0; } .pledge div:nth-child(3) { border-left: 0; } }
@media (max-width: 480px) { .pledge { grid-template-columns: 1fr; } .pledge div, .pledge div + div { border-left: 0; padding: 0; } }

/* Perguntas */
.faq { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 24px 40px 24px 0; font-size: 19px; font-weight: 600; letter-spacing: -.02em; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 6px; top: 30px; width: 9px; height: 9px; border: solid var(--text-2); border-width: 0 1.8px 1.8px 0; transform: rotate(45deg); transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(-135deg); top: 34px; }
.faq p { color: var(--text-2); padding: 0 40px 26px 0; font-size: 17px; }

/* Chamada final */
.final { text-align: center; }
.final .sub { max-width: 600px; margin: 20px auto 34px; }
.contact { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 70px; text-align: left; }
.contact a, .contact div { background: var(--bg-2); border-radius: 20px; padding: 24px 26px; color: var(--text); display: block; }
.contact a:hover { text-decoration: none; background: #ececf0; }
.contact span { display: block; font-size: 14px; color: var(--text-2); }
.contact b { display: block; font-size: 18px; font-weight: 600; letter-spacing: -.015em; margin-top: 4px; word-break: break-word; }
@media (max-width: 820px) { .contact { grid-template-columns: 1fr; } }

/* Rodapé */
footer { background: var(--bg-2); color: var(--text-2); font-size: 12.5px; line-height: 1.6; padding: 26px 0 40px; }
.f-note { padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.f-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.f-cols h4 { font-size: 12.5px; font-weight: 600; color: var(--text); margin-bottom: 10px; }
.f-cols ul { list-style: none; display: grid; gap: 8px; }
.f-cols a { color: var(--text-2); }
.f-cols a:hover { color: var(--text); text-decoration: underline; }
.f-end { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 18px; }
@media (max-width: 760px) { .f-cols { grid-template-columns: 1fr 1fr; } }

/* WhatsApp */
.wa { position: fixed; right: 22px; bottom: 22px; z-index: 90; width: 54px; height: 54px; border-radius: 50%; background: #25d366; display: grid; place-items: center; box-shadow: 0 10px 24px -8px rgba(0,0,0,.35); }
.wa svg { width: 28px; height: 28px; fill: #fff; }

/* Janela FTP */
.modal { position: fixed; inset: 0; z-index: 300; display: grid; place-items: center; padding: 16px; background: rgba(0,0,0,.38); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); opacity: 0; pointer-events: none; transition: opacity .25s; }
.modal.open { opacity: 1; pointer-events: auto; }
.modal-box { width: min(520px, 100%); max-height: calc(100vh - 32px); overflow: auto; background: #fff; border-radius: 26px; padding: 40px 34px 30px; position: relative; text-align: center; box-shadow: 0 40px 80px -30px rgba(0,0,0,.4); transform: scale(.97); transition: transform .3s cubic-bezier(.2,.7,.2,1); }
.modal.open .modal-box { transform: none; }
.modal-box .ico { width: 56px; height: 56px; margin: 0 auto 18px; border-radius: 16px; background: var(--bg-2); display: grid; place-items: center; color: var(--blue); }
.modal-box .ico svg { width: 26px; height: 26px; }
.modal-box h3 { font-size: 28px; font-weight: 700; letter-spacing: -.03em; }
.modal-box p { color: var(--text-2); font-size: 15.5px; margin-top: 8px; }
.x { position: absolute; top: 14px; right: 14px; width: 34px; height: 34px; border-radius: 50%; border: 0; background: var(--bg-2); color: var(--text-2); font-size: 20px; line-height: 1; cursor: pointer; }
.fields { margin: 24px 0 8px; border-radius: 16px; background: var(--bg-2); text-align: left; }
.fields div { display: flex; justify-content: space-between; gap: 14px; padding: 14px 18px; font-size: 15px; }
.fields div + div { border-top: 1px solid #e3e3e8; }
.fields span { color: var(--text-2); }
.fields code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 14px; font-weight: 600; color: var(--text); text-align: right; word-break: break-all; }
.fields code.p { font-family: var(--font); font-weight: 500; color: var(--text-2); word-break: normal; }
.modal-box .btn { width: 100%; margin-top: 12px; }
.modal-box small { display: block; color: var(--text-3); font-size: 13px; margin-top: 16px; }

@media (max-width: 760px) { .sec { padding: 90px 0; } .hero { padding-top: 54px; } .banner { min-height: 620px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* ================= Vitrine 3D ================= */
.showroom { position: relative; margin-top: 30px; }
.stage { position: relative; height: min(64vw, 600px); min-height: 380px; cursor: grab; touch-action: pan-y; user-select: none; -webkit-user-select: none; outline: none; }
.stage.grab { cursor: grabbing; }
.stage::before { content: ""; position: absolute; left: 50%; bottom: 4%; width: min(460px, 70%); height: 46px; transform: translateX(-50%); background: radial-gradient(closest-side, rgba(0,0,0,.22), rgba(0,0,0,0)); filter: blur(4px); }
.scene { position: absolute; inset: 0; perspective: 1600px; perspective-origin: 50% 40%; }
.scene > .model { position: absolute; left: 50%; top: 47%; width: 0; height: 0; transform-style: preserve-3d; scale: var(--s, 1); transition: opacity .26s, scale .26s; }
.model.swap { opacity: 0; scale: calc(var(--s, 1) * .9); }
.group, .obj, .coil { position: absolute; left: 0; top: 0; transform-style: preserve-3d; }
.face { position: absolute; left: 0; top: 0; overflow: hidden; backface-visibility: hidden; -webkit-backface-visibility: hidden; background: #fff; }
.shade { position: absolute; inset: 0; background: #000; opacity: 0; pointer-events: none; z-index: 5; }
.face > div:not(.shade) { width: 100%; height: 100%; }

/* PVC: brilho que corre pela capa ao girar */
.pvc::after { content: ""; position: absolute; inset: 0; z-index: 6; pointer-events: none; background: linear-gradient(105deg, transparent calc(var(--gx, 50%) - 22%), rgba(255,255,255,.34) var(--gx, 50%), transparent calc(var(--gx, 50%) + 22%)), linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,0) 40%); }

/* bordas de papel */
.pages { background: repeating-linear-gradient(90deg, #fbfbfb 0 1.4px, #e3e3e3 1.4px 2.2px); }
.f-right .pages, .f-left .pages { background: repeating-linear-gradient(90deg, #fbfbfb 0 1.4px, #e1e1e1 1.4px 2.2px); }
.f-top .pages, .f-bottom .pages { background: repeating-linear-gradient(0deg, #fbfbfb 0 1.4px, #e1e1e1 1.4px 2.2px); }
.cv-back { background: #1d1d1f; }
.cv-back.b { background: #f2c230; }
.spine-a { background: linear-gradient(90deg, #1d1d1f, #2c2c2e 45%, #1d1d1f); }
.spine-b { background: #e0ae18; position: relative; }
.spine-b i { position: absolute; left: 3px; right: 3px; height: 18px; background: linear-gradient(90deg, #8e8e93, #f2f2f7, #8e8e93); border-radius: 2px; }
.spine-b i:first-child { top: 26%; } .spine-b i:last-child { top: 70%; }

/* espiral */
.ring { position: absolute; left: -11px; top: -24px; width: 22px; height: 48px; margin: 0; border-radius: 50%; border: 2.6px solid #b9b9be; border-left-color: #6e6e73; border-right-color: #f2f2f7; box-shadow: 0 0 0 .5px rgba(0,0,0,.25); }
.ring { left: -14px; width: 28px; height: 46px; top: -23px; }

/* capa da apostila */
.cv { position: relative; padding: 26px 26px 22px; display: flex; flex-direction: column; color: #fff; font-family: var(--font); }
.cv-a { background: radial-gradient(120% 80% at 80% 0%, #2b6fdc 0%, #123a8c 55%, #0b2357 100%); padding-left: 38px; }
.cv-top { display: flex; justify-content: space-between; font-size: 11px; font-weight: 600; letter-spacing: .02em; opacity: .85; }
.cv-art { margin: 26px 0 12px; }
.cv-art svg { width: 100%; height: auto; }
.cv-title { font-size: 31px; font-weight: 800; letter-spacing: -.035em; line-height: 1.02; margin-top: auto; }
.cv-sub { font-size: 13px; opacity: .82; margin-top: 6px; }
.cv-foot { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid rgba(255,255,255,.28); margin-top: 18px; padding-top: 10px; font-size: 10.5px; opacity: .85; }
.cv-b { background: #ffd23f; color: #1d1d1f; padding: 30px 28px 24px 30px; }
.cv-b .cv-title { font-size: 40px; margin-top: 0; }
.cv-b .cv-sub { opacity: .7; margin-top: 10px; }
.cv-b .cv-foot { border-color: rgba(0,0,0,.2); margin-top: auto; font-weight: 600; }
.cv-blocks { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 30px; height: 150px; }
.cv-blocks i { border-radius: 10px; }
.cv-blocks i:nth-child(1) { background: #1d1d1f; border-radius: 10px 10px 10px 70px; }
.cv-blocks i:nth-child(2) { background: #ff6a3d; border-radius: 50%; }
.cv-blocks i:nth-child(3) { background: #2b6fdc; }
.cv-blocks i:nth-child(4) { background: #fff; border-radius: 70px 10px 10px 10px; }

/* cartões */
.edge { background: #e8e8ed; }
.cd { padding: 22px 24px; display: flex; flex-direction: column; font-family: var(--font); }
.cd-f { background: #111113; color: #fff; justify-content: center; align-items: flex-start; gap: 2px; }
.cd-f img { height: 34px; width: auto; margin-bottom: 14px; }
.cd-f b { font-size: 22px; font-weight: 800; letter-spacing: -.03em; }
.cd-f span { font-size: 11.5px; color: #a1a1a6; }
.cd-b { background: #fff; color: #1d1d1f; justify-content: flex-end; }
.cd-b b { font-size: 19px; font-weight: 700; letter-spacing: -.02em; }
.cd-b span { font-size: 12px; color: #6e6e73; }
.cd-b em { font-style: normal; font-size: 10.5px; color: #1d1d1f; margin-top: 16px; line-height: 1.5; }

/* folder */
.fd { padding: 16px 14px; display: flex; flex-direction: column; font-family: var(--font); background: #fff; color: #1d1d1f; }
.fd b { font-size: 15px; font-weight: 800; letter-spacing: -.02em; line-height: 1.1; }
.fd span { font-size: 10.5px; color: #6e6e73; margin-top: 4px; }
.fd-1 { padding: 0; background: #0b2357; color: #fff; }
.fd-1 .fd-ph { height: 62%; background-size: cover; background-position: 50% 30%; }
.fd-1 b { font-size: 20px; padding: 16px 14px 0; }
.fd-1 span { color: #b9c8ea; padding: 0 14px; }
.fd-2 i { display: block; height: 5px; border-radius: 3px; background: #e5e5ea; margin-top: 9px; }
.fd-2 i.s { width: 60%; }
.fd-2 b { margin-bottom: 6px; }
.fd-dot { width: 64px; height: 64px; border-radius: 50%; background: #ffd23f; margin: 16px auto 4px; }
.fd-3 { background: #f5f5f7; }
.fd-3 ul { list-style: none; margin-top: 12px; font-size: 11.5px; }
.fd-3 li { padding: 7px 0; border-bottom: 1px solid #e0e0e5; }
.fd-qr { margin-top: auto; width: 54px; height: 54px; background: repeating-conic-gradient(#1d1d1f 0 25%, #fff 0 50%) 0 0 / 12px 12px; border: 4px solid #fff; outline: 1px solid #d2d2d7; }
.fd-in { background: #fafafa; }

/* seletor */
.picker { display: inline-flex; padding: 4px; border-radius: 980px; background: #e8e8ed; gap: 2px; margin-top: 8px; }
.picker button { border: 0; background: transparent; font: inherit; font-size: 14px; font-weight: 500; color: var(--text); padding: 8px 18px; border-radius: 980px; cursor: pointer; transition: background .25s, box-shadow .25s; }
.picker button[aria-selected="true"] { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.12); }
.stage-meta { text-align: center; }
.stage-meta p { font-size: 14px; color: var(--text-2); margin-top: 14px; display: flex; gap: 8px; align-items: center; justify-content: center; }
.stage-meta p svg { width: 18px; height: 18px; }
#stage-caption { font-size: 17px; color: var(--text); margin-top: 16px; min-height: 26px; font-weight: 500; letter-spacing: -.015em; }
@media (max-width: 480px) { .picker button { padding: 8px 12px; font-size: 13px; } }
.hero { padding-top: 56px; }
.hero .t-hero { font-size: clamp(44px, 6.6vw, 80px); }
.hero .sub { margin: 18px auto 26px; }
.showroom { margin-top: 10px; }
.cv-back .bk { height: 100%; padding: 30px 28px 26px 34px; display: flex; flex-direction: column; color: #f5f5f7; font-family: var(--font); }
.bk b { font-size: 18px; font-weight: 700; letter-spacing: -.02em; }
.bk span { font-size: 11.5px; color: #a1a1a6; margin-top: 8px; line-height: 1.45; max-width: 200px; }
.bk .bk-code { margin-top: auto; width: 96px; height: 40px; background: repeating-linear-gradient(90deg, #f5f5f7 0 2px, transparent 2px 4px, #f5f5f7 4px 5px, transparent 5px 8px); }
.bk em { font-style: normal; font-size: 10px; color: #86868b; margin-top: 10px; }
.bk.bk-ink { color: #1d1d1f; } .bk.bk-ink span { color: #5c4a00; } .bk.bk-ink .bk-code { background: repeating-linear-gradient(90deg, #1d1d1f 0 2px, transparent 2px 4px, #1d1d1f 4px 5px, transparent 5px 8px); } .bk.bk-ink em { color: #5c4a00; }
.fd-in { background: #fbfbfd; }
.fd-ph.sm { height: 90px; border-radius: 6px; background-size: cover; background-position: center; margin: 12px 0 4px; }
.fd-in i { display: block; height: 5px; border-radius: 3px; background: #e5e5ea; margin-top: 9px; }
.fd-in i.s { width: 60%; }
.fd-big { font-size: 46px; font-weight: 800; letter-spacing: -.04em; color: #0b2357; margin: 18px 0 4px; }
@media (max-width: 900px) { .nav.open { backdrop-filter: none; -webkit-backdrop-filter: none; } }
@media (max-width: 900px) { .nav.open .menu .m-only .btn { color: #fff; } .nav.open .menu .m-only .btn.ghost { color: var(--blue); } }

/* ===== Variações CMYK da abertura (classe no <section class="hero">) ===== */
.inks { display: none; }
.hero { position: relative; }
.hero > * { position: relative; }

/* A — preto com luz CMYK */
.hero.v-ink { background: #000; color: #f5f5f7; padding-bottom: 40px; }
.v-ink .name { color: #f5f5f7; }
.v-ink .sub, .v-ink .stage-meta p { color: #a1a1a6; }
.v-ink #stage-caption { color: #f5f5f7; }
.v-ink .link { color: var(--blue-dark); }
.v-ink .picker { background: #1d1d1f; }
.v-ink .picker button { color: #d2d2d7; }
.v-ink .picker button[aria-selected="true"] { background: #3a3a3c; color: #fff; box-shadow: none; }
.v-ink .stage::before { background: radial-gradient(closest-side, rgba(0,0,0,.9), rgba(0,0,0,0)); }
.v-ink .inks { display: block; position: absolute; inset: -10% 0 10%; pointer-events: none; }
.v-ink .inks i { position: absolute; width: 46vw; max-width: 560px; aspect-ratio: 1; border-radius: 50%; filter: blur(70px); opacity: .55; mix-blend-mode: screen; }
.v-ink .ic { background: #00aeef; left: 50%; top: 18%; transform: translateX(-95%); }
.v-ink .im { background: #ec008c; left: 50%; top: 10%; transform: translateX(-5%); }
.v-ink .iy { background: #ffd400; left: 50%; top: 42%; transform: translateX(-50%); opacity: .38; }

/* B — branco com círculos CMYK sobrepostos */
.v-venn .inks { display: block; position: absolute; left: 50%; top: 50%; width: min(560px, 92vw); aspect-ratio: 1; transform: translate(-50%, -54%); pointer-events: none; }
.v-venn .inks i { position: absolute; width: 62%; aspect-ratio: 1; border-radius: 50%; mix-blend-mode: multiply; opacity: .9; }
.v-venn .ic { background: #00aeef; left: 0; top: 4%; }
.v-venn .im { background: #ec008c; right: 0; top: 4%; }
.v-venn .iy { background: #fff200; left: 19%; bottom: 0; }
.v-venn .stage::before { opacity: .0; }

/* C — degradê suave CMYK */
.hero.v-mesh { background:
  radial-gradient(60% 55% at 12% 18%, rgba(0,174,239,.55), transparent 70%),
  radial-gradient(55% 55% at 90% 22%, rgba(236,0,140,.45), transparent 70%),
  radial-gradient(70% 60% at 55% 100%, rgba(255,212,0,.6), transparent 70%),
  #fbfbfd; }
.v-mesh .picker { background: rgba(255,255,255,.55); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.v-mesh .sub { color: #3a3a3c; }
.v-mesh .stage-meta p { color: #3a3a3c; }
/* A — barra superior escura junto da abertura preta */
body.top-ink .nav { background: rgba(0,0,0,.86); border-bottom-color: rgba(255,255,255,.08); }
body.top-ink .brand span, body.top-ink .menu a, body.top-ink .nav-right .up { color: #f5f5f7; }
body.top-ink .burger i { background: #f5f5f7; }
body.top-ink .notice { background: #000; color: #d2d2d7; border-bottom: 1px solid #1d1d1f; }
body.top-ink .notice .link { color: var(--blue-dark); }
.v-ink .inks i { opacity: .6; }
.v-ink .iy { opacity: .32; top: 46%; }
@media (max-width: 900px) { body.top-ink .nav.open { background: #000; } body.top-ink .nav.open .menu { background: #000; } body.top-ink .nav.open .menu a { color: #f5f5f7; } }
.hero-logo { height: 64px; width: auto; margin: 0 auto 22px; }
@media (prefers-reduced-motion: no-preference) { .hero-logo { animation: rise 1s cubic-bezier(.2,.7,.2,1) both; } }
@media (max-width: 760px) { .hero-logo { height: 52px; margin-bottom: 18px; } }
/* Logo oficial */
.brand img { height: 32px; width: auto; }
.hero-logo { height: 160px; margin-bottom: 26px; }
@media (max-width: 760px) { .hero-logo { height: 120px; } .brand img { height: 28px; } }
.f-logo { height: 40px; width: auto; margin: 10px 0 22px; }
.cd-f .cd-logo { height: 46px; width: auto; margin: 0 0 12px; }
.nav .brand img { height: 38px; }