:root {
  --bg: #05070c; --bg2: #0b0f18; --card: #111725; --line: rgba(255,255,255,0.08);
  --tx: #fff; --tx2: rgba(255,255,255,0.68); --tx3: rgba(255,255,255,0.42);
  --blue: #2f7bff; --blue2: #60a5fa; --ok: #22c55e; --gold: #fbbf24;
  --poster: 176px; --pad: 56px; --r: 14px;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { background: var(--bg); color: var(--tx); -webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: transparent; }
body { min-height: 100vh; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
img { display: block; }

/* ---------- topo ---------- */
.top { position: fixed; inset: 0 0 auto; z-index: 20; height: 68px; display: flex; align-items: center; gap: 36px; padding: 0 var(--pad);
  background: linear-gradient(180deg, rgba(5,7,12,0.85), rgba(5,7,12,0)); transition: background-color .25s; }
.top.solid { background-color: rgba(5,7,12,0.96); }
.logo { font-weight: 900; font-size: 20px; letter-spacing: 0.02em; }
.logo span { color: var(--blue); margin: 0 1px; }
.top nav { display: flex; gap: 22px; font-size: 15px; color: var(--tx2); }
.top nav a.on { color: #fff; font-weight: 600; }
.avatar { margin-left: auto; width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--blue2), var(--blue)); font-weight: 800; }

/* ---------- banner ---------- */
/* banner do curso em cima; boas-vindas, progresso e botões logo abaixo */
.hero { position: relative; }
.hero-img { width: 100%; height: auto; aspect-ratio: 2000/535; object-fit: cover; min-height: 220px; max-height: 560px; object-position: 50% 30%;
  -webkit-mask-image: linear-gradient(0deg, transparent 0%, #000 28%); mask-image: linear-gradient(0deg, transparent 0%, #000 28%); }
.hero-in { position: relative; z-index: 1; margin-top: -56px; padding: 0 var(--pad) 40px; display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.tag { display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 0.18em; color: var(--blue2); margin-bottom: 10px; }
.hero h1 { font-size: clamp(26px, 2.6vw, 36px); line-height: 1.1; font-weight: 900; letter-spacing: -0.01em; }
.hero h1 b { color: var(--blue2); }
.hero p { font-size: 16px; color: var(--tx2); margin-top: 8px; line-height: 1.45; max-width: 520px; }
.hero .btns { margin-top: 0; }
.prog { margin-top: 22px; max-width: 420px; }
.prog-bar { height: 6px; border-radius: 3px; background: rgba(255,255,255,0.12); overflow: hidden; }
.prog-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--blue), var(--blue2)); border-radius: 3px; }
.prog small { display: block; font-size: 13px; color: var(--tx3); margin-top: 8px; }
.btns { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 10px; height: 50px; padding: 0 26px; border-radius: 12px; font-size: 16px; font-weight: 700; transition: transform .15s, background-color .15s; }
.btn:active { transform: scale(0.97); }
.btn.pri { background: #fff; color: #05070c; }
.btn.pri:hover { background: #dfe7ff; }
.btn.sec { background: rgba(255,255,255,0.14); }
.btn.sec:hover { background: rgba(255,255,255,0.22); }
.btn.blue { background: var(--blue); color: #fff; box-shadow: 0 8px 30px rgba(47,123,255,0.35); }
.btn svg { width: 20px; height: 20px; }

/* ---------- trilhas (linhas de capas) ---------- */
.rows { position: relative; z-index: 2; padding: 6px 0 80px; }
.row { margin-bottom: 34px; content-visibility: auto; contain-intrinsic-size: 1px 440px; }
.row h2 { font-size: 21px; font-weight: 700; padding: 0 var(--pad); margin-bottom: 12px; display: flex; align-items: baseline; gap: 12px; }
.row h2 small { font-size: 13px; font-weight: 600; color: var(--tx3); }
.rail-wrap { position: relative; }
.rail { display: flex; gap: 12px; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scroll-padding: 0 var(--pad);
  padding: 10px var(--pad) 14px; scrollbar-width: none; }
.rail::-webkit-scrollbar { display: none; }
.arrow { position: absolute; top: 10px; bottom: 14px; width: calc(var(--pad) - 8px); z-index: 3; display: flex; align-items: center; justify-content: center;
  background: rgba(5,7,12,0.7); opacity: 0; transition: opacity .2s; font-size: 30px; }
.arrow.l { left: 0; border-radius: 0 10px 10px 0; } .arrow.r { right: 0; border-radius: 10px 0 0 10px; }
.rail-wrap:hover .arrow { opacity: 1; }

.poster { position: relative; flex: none; container-type: inline-size; width: var(--poster); scroll-snap-align: start; border-radius: var(--r); overflow: hidden; background: var(--card);
  aspect-ratio: 260/548; transition: transform .22s cubic-bezier(.2,.8,.2,1), box-shadow .22s; outline: none; }
.poster img { width: 100%; height: 100%; object-fit: cover; }
.poster:hover, .poster:focus-visible { transform: translateY(-6px) scale(1.04); box-shadow: 0 18px 40px rgba(0,0,0,0.6), 0 0 0 2px rgba(96,165,250,0.55); z-index: 2; }
.poster .pbar { position: absolute; left: 10px; right: 10px; bottom: 10px; height: 4px; border-radius: 2px; background: rgba(255,255,255,0.25); }
.poster .pbar i { display: block; height: 100%; border-radius: 2px; background: var(--blue2); }
.poster .done { position: absolute; top: 10px; right: 10px; width: 28px; height: 28px; border-radius: 50%; background: var(--ok); display: grid; place-items: center; font-size: 15px; font-weight: 900; }
.selo { position: absolute; top: 10px; left: 10px; font-size: 11px; font-weight: 900; letter-spacing: 0.12em; padding: 5px 9px; border-radius: 7px; background: var(--blue); }
.selo.gold { background: var(--gold); color: #1a1205; }

/* bloqueado (7 dias) e upsell */
.lock { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 8px; padding: 18px 12px; text-align: center;
  background: linear-gradient(0deg, rgba(5,7,12,0.97) 0%, rgba(5,7,12,0.88) 32%, rgba(5,7,12,0.35) 70%, rgba(5,7,12,0.2) 100%); }
.lock .ico { width: 46px; height: 46px; border-radius: 50%; background: rgba(255,255,255,0.12); display: grid; place-items: center; }
.lock .ico svg { width: 22px; height: 22px; }
.lock b { font-size: 14px; } .lock small { font-size: 12px; color: var(--tx2); line-height: 1.3; }
.poster.locked img { filter: grayscale(0.7) brightness(0.7); }
.poster.locked .capa-css img { filter: none; }
.lock.up { background: linear-gradient(0deg, rgba(5,7,12,0.95) 0%, rgba(5,7,12,0.6) 26%, transparent 50%); }
.lock .cta { margin-top: 4px; font-size: 13px; font-weight: 800; padding: 8px 14px; border-radius: 9px; background: var(--gold); color: #1a1205; }

/* capa desenhada (módulo sem imagem) */
.capa-css { width: 100%; height: 100%; position: relative; display: flex; flex-direction: column; justify-content: flex-start; padding: 30cqw 8cqw 0; text-align: center;
  background: radial-gradient(90% 60% at 50% 100%, rgba(47,123,255,0.55), transparent 70%), linear-gradient(180deg, #0c1530, #050810); }
.capa-css .ct { position: relative; z-index: 1; font-size: 8.6cqw; font-weight: 900; line-height: 1.05; text-transform: uppercase; letter-spacing: -0.01em; }
.capa-css .ct span { color: var(--gold); }
.capa-css img { position: absolute; left: -10%; right: -10%; bottom: 0; width: 120%; height: 62%; object-fit: cover; object-position: top;
  -webkit-mask-image: linear-gradient(0deg, #000 70%, transparent); mask-image: linear-gradient(0deg, #000 70%, transparent); }

/* ---------- módulo ---------- */
.mod { padding: 100px var(--pad) 80px; display: grid; grid-template-columns: 260px 1fr; gap: 44px; max-width: 1240px; margin: 0 auto; position: relative; }
.mod-bg { position: absolute; inset: 0 0 auto; height: 520px; z-index: -1; overflow: hidden; }
.mod-bg img { width: 100%; height: 100%; object-fit: cover; filter: blur(40px) brightness(0.45) saturate(1.3); transform: scale(1.2); }
.mod-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, var(--bg), rgba(5,7,12,0.3)); }
.mod-cover { container-type: inline-size; border-radius: 18px; overflow: hidden; aspect-ratio: 260/548; box-shadow: 0 30px 60px rgba(0,0,0,0.5); align-self: start; position: sticky; top: 90px; }
.mod-cover img { width: 100%; height: 100%; object-fit: cover; }
.back { display: inline-flex; align-items: center; gap: 8px; color: var(--tx2); font-size: 14px; margin-bottom: 18px; }
.back:hover { color: #fff; }
.mod h1 { font-size: clamp(28px, 3.2vw, 42px); line-height: 1.08; font-weight: 900; letter-spacing: -0.01em; }
.mod .meta { color: var(--tx3); font-size: 14px; margin-top: 10px; }
.mod .prog { max-width: 520px; }
.list { margin-top: 30px; display: flex; flex-direction: column; gap: 8px; }
.aula { display: flex; align-items: center; gap: 16px; padding: 14px 18px; border-radius: 14px; background: rgba(255,255,255,0.04); border: 1px solid var(--line);
  transition: background-color .15s, border-color .15s; }
.aula:hover { background: rgba(255,255,255,0.08); border-color: rgba(96,165,250,0.4); }
.aula .n { flex: none; width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,0.08); display: grid; place-items: center; font-weight: 800; font-size: 15px; }
.aula.ok .n { background: var(--ok); }
.aula .at { flex: 1; font-size: 16px; font-weight: 600; }
.aula .d { font-size: 13px; color: var(--tx3); }
.aula.on { border-color: var(--blue); background: rgba(47,123,255,0.12); }

/* ---------- aula ---------- */
.lesson { padding: 88px var(--pad) 80px; display: grid; grid-template-columns: 1fr 360px; gap: 28px; max-width: 1400px; margin: 0 auto; }
.player { position: relative; aspect-ratio: 16/9; border-radius: 16px; overflow: hidden; background: #000; box-shadow: 0 20px 50px rgba(0,0,0,0.5); }
.player iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.facade { position: absolute; inset: 0; display: grid; place-items: center; cursor: pointer; background: radial-gradient(60% 70% at 50% 50%, #12224a, #04060b); }
.facade img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.facade .play { position: relative; width: 84px; height: 84px; border-radius: 50%; background: var(--blue); display: grid; place-items: center;
  box-shadow: 0 0 0 10px rgba(47,123,255,0.25), 0 10px 40px rgba(47,123,255,0.6); transition: transform .15s; }
.facade:hover .play { transform: scale(1.08); }
.facade .play svg { width: 34px; height: 34px; margin-left: 5px; }
.facade .hint { position: absolute; bottom: 18px; font-size: 13px; color: var(--tx3); }
.lesson h1 { font-size: 26px; font-weight: 800; margin-top: 22px; line-height: 1.2; }
.lesson .meta { color: var(--tx3); font-size: 14px; margin-top: 6px; }
.lbar { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }
.btn.okd { background: rgba(34,197,94,0.16); color: #86efac; }
.side { background: var(--bg2); border: 1px solid var(--line); border-radius: 16px; padding: 18px; align-self: start; position: sticky; top: 88px; max-height: calc(100vh - 110px); overflow: auto; }
.side h3 { font-size: 15px; font-weight: 800; margin-bottom: 4px; }
.side .meta { margin: 0 0 12px; }
.side .aula { padding: 10px 12px; }
.side .aula .n { width: 32px; height: 32px; font-size: 13px; }
.side .aula .at { font-size: 14px; }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 20px; background: rgba(0,0,0,0.7); backdrop-filter: blur(6px); animation: fade .2s; }
.modal[hidden] { display: none; }
.modal-box { width: min(480px, 100%); border-radius: 22px; background: linear-gradient(180deg, #111a2e, #0a0e17); border: 1px solid rgba(96,165,250,0.25); padding: 30px; animation: pop .25s cubic-bezier(.2,.8,.2,1); }
.modal-box h3 { font-size: 24px; font-weight: 900; line-height: 1.15; margin-top: 8px; }
.modal-box p { color: var(--tx2); margin-top: 10px; line-height: 1.5; }
.price { margin-top: 18px; } .price s { color: var(--tx3); } .price b { display: block; font-size: 40px; font-weight: 900; color: #fff; }
.price small { color: var(--tx2); }
.modal-box .btns .btn { flex: 1; justify-content: center; }
@keyframes fade { from { opacity: 0; } } @keyframes pop { from { opacity: 0; transform: translateY(16px) scale(0.97); } }

/* simulador do protótipo */
.sim { position: fixed; left: 16px; bottom: 16px; z-index: 30; background: rgba(17,23,37,0.96); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; font-size: 13px; width: 250px; }
.sim b { display: block; font-size: 11px; letter-spacing: 0.14em; color: var(--gold); margin-bottom: 8px; }
.sim label { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 6px; color: var(--tx2); }
.sim input[type=range] { width: 110px; }

/* ---------- celular ---------- */
@media (max-width: 760px) {
  :root { --pad: 16px; --poster: 128px; }
  .top { height: 58px; gap: 16px; }
  .top nav { display: none; }
  .logo { font-size: 17px; }
  .hero-img { min-height: 0; height: 230px; object-position: 66% 50%; margin-top: 50px; }
  .hero-in { margin-top: -30px; padding-bottom: 30px; gap: 18px; }
  .hero p { font-size: 15px; }
  .btn { height: 46px; padding: 0 20px; font-size: 15px; }
  .row h2 { font-size: 18px; }
  .arrow { display: none; }
  .poster:hover { transform: none; box-shadow: none; }
  .mod { grid-template-columns: 1fr; padding-top: 76px; gap: 0; }
  .mod-cover { display: none; }
  .lesson { grid-template-columns: 1fr; padding: 58px 0 60px; gap: 0; }
  .lesson .player { border-radius: 0; }
  .lesson > div:first-child > :not(.player) { margin-left: 16px; margin-right: 16px; }
  .side { position: static; margin: 26px 16px 0; max-height: none; }
  .sim { left: 8px; right: 8px; width: auto; bottom: 8px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* descrições, materiais e aula bloqueada */
.mdesc { color: var(--tx2); font-size: 16px; line-height: 1.55; margin-top: 14px; max-width: 640px; }
.ldesc { margin-top: 18px; padding: 18px 20px; border-radius: 14px; background: var(--bg2); border: 1px solid var(--line); color: var(--tx2); font-size: 15px; line-height: 1.6; overflow-wrap: anywhere; }
.ldesc a, .mdesc a { color: var(--blue2); text-decoration: underline; text-underline-offset: 3px; }
.lesson.sem-video h1 { margin-top: 0; }
.mats { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.mat { display: flex; align-items: center; gap: 14px; padding: 12px 14px; border-radius: 14px; background: rgba(47,123,255,0.08); border: 1px solid rgba(96,165,250,0.3); font-weight: 600; font-size: 15px; transition: background-color .15s; }
.mat:hover { background: rgba(47,123,255,0.16); }
.mat .pdf { flex: none; font-size: 11px; font-weight: 900; letter-spacing: 0.08em; padding: 7px 8px; border-radius: 8px; background: #ef4444; }
.mat .dl { margin-left: auto; font-size: 13px; color: var(--blue2); font-weight: 800; }
.aviso { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; text-align: center; padding: 20px;
  background: radial-gradient(60% 70% at 50% 50%, #12224a, #04060b); }
.aviso svg { width: 44px; height: 44px; padding: 10px; border-radius: 50%; background: rgba(255,255,255,0.1); }
.aviso b { font-size: 20px; } .aviso span { color: var(--tx2); font-size: 14px; }
.aula.trava { opacity: 0.6; }

/* ---------- login ---------- */
body.fora .top nav, body.fora .avatar { display: none; }
.auth { min-height: 100vh; display: grid; place-items: center; padding: 90px 16px 40px; background-size: cover; background-position: 30% 50%; position: relative; }
.auth::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(5,7,12,0.55), rgba(5,7,12,0.92)); }
.auth-box { position: relative; width: min(420px, 100%); display: flex; flex-direction: column; gap: 14px; padding: 32px 28px; border-radius: 22px;
  background: rgba(11,15,24,0.92); border: 1px solid rgba(96,165,250,0.22); box-shadow: 0 30px 80px rgba(0,0,0,0.5); }
.auth-box .logo { font-size: 18px; margin-bottom: 6px; }
.auth-box h1 { font-size: 26px; font-weight: 900; }
.auth-box p { color: var(--tx2); font-size: 14px; line-height: 1.5; margin-top: -4px; }
.auth-box label, .conta label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 600; color: var(--tx2); }
.auth-box input, .conta input { height: 48px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.14); background: rgba(255,255,255,0.05); color: #fff; padding: 0 14px; font: inherit; font-size: 16px; outline: none; transition: border-color .15s; }
.auth-box input:focus, .conta input:focus { border-color: var(--blue2); }
.auth-box .btn { justify-content: center; margin-top: 4px; }
.auth-box .btn:disabled { opacity: 0.6; }
.auth-links { display: flex; flex-direction: column; gap: 8px; align-items: center; margin-top: 4px; font-size: 14px; }
.auth-links a { color: var(--blue2); }
.auth-msg { font-size: 14px; padding: 10px 12px; border-radius: 10px; background: rgba(239,68,68,0.14); color: #fca5a5; }
.auth-msg.ok { background: rgba(34,197,94,0.14); color: #86efac; }
.conta { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }