:root {
  --navy: #0d1b2a;
  --navy-2: #132b42;
  --cyan: #00b4c6;
  --yellow: #ffb703;
  --white: #ffffff;
  --soft: #f2f2f2;
  --ink: #122033;
  --muted: #5e6b79;
  --red: #ef4e4e;
  --radius: 24px;
  --shadow: 0 24px 60px rgba(13, 27, 42, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; }
section { position: relative; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.narrow { width: min(860px, calc(100% - 40px)); margin-inline: auto; }
.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.035em; }
h1 { margin-bottom: 22px; font-size: clamp(2.55rem, 5.5vw, 5.25rem); }
h2 { margin-bottom: 18px; font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { margin-bottom: 10px; font-size: 1.28rem; }
.lead { color: #d5e1e9; font-size: clamp(1.05rem, 2vw, 1.28rem); }
.center { text-align: center; }
.accent { color: var(--yellow); }
.cyan { color: var(--cyan); }

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  background: rgba(13, 27, 42, .94);
  border-bottom: 1px solid rgba(255,255,255,.1);
  backdrop-filter: blur(14px);
}
.nav { min-height: 72px; display: flex; align-items: center; justify-content: flex-start; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: white; font-weight: 800; text-decoration: none; }
.brand-logo { width: 34px; height: 40px; overflow: visible; }
.brand-do { color: var(--cyan); }
.brand-enem { color: var(--yellow); }
.nav-link { color: #dce7ed; font-size: .92rem; text-decoration: none; }

.btn {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  color: var(--navy);
  background: var(--yellow);
  border: 0;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(255, 183, 3, .2);
  font-weight: 900;
  line-height: 1.15;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); background: #ffc52a; box-shadow: 0 14px 34px rgba(255, 183, 3, .28); }
.btn:focus-visible, summary:focus-visible, a:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
.btn-small { min-height: 42px; padding: 10px 17px; font-size: .78rem; }
.btn-wide { width: 100%; }

.hero {
  overflow: hidden;
  padding: 88px 0 94px;
  color: white;
  background:
    radial-gradient(circle at 82% 26%, rgba(0,180,198,.23), transparent 27%),
    linear-gradient(145deg, #0d1b2a 0%, #10283d 100%);
}
.hero::before {
  position: absolute; width: 460px; height: 460px; content: ""; right: -230px; bottom: -250px;
  border: 74px solid rgba(255,183,3,.07); border-radius: 50%;
}
.hero-grid { display: grid; align-items: center; gap: 68px; grid-template-columns: 1.12fr .88fr; }
.tag {
  display: inline-flex; margin-bottom: 18px; padding: 7px 11px; color: var(--yellow);
  border: 1px solid rgba(255,183,3,.45); border-radius: 999px; background: rgba(255,183,3,.08);
  font-size: .78rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase;
}
.hero-copy { position: relative; z-index: 2; }
.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 30px; }
.micro { margin: 0; color: #aebdc7; font-size: .82rem; }
.paper-wrap { position: relative; padding: 22px; }
.paper-wrap::before {
  position: absolute; inset: 2px 2px auto auto; width: 120px; height: 120px; content: "";
  border: 15px solid var(--yellow); border-left-color: transparent; border-bottom-color: transparent; border-radius: 50%;
}
.paper {
  position: relative; z-index: 1; min-height: 480px; padding: 38px 32px 30px; color: #27313a;
  background: #fff; border-radius: 12px; box-shadow: 0 34px 80px rgba(0,0,0,.32); transform: rotate(2deg);
}
.paper-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.paper-label { font-size: .7rem; font-weight: 900; letter-spacing: .12em; }
.score { display: grid; width: 68px; height: 68px; place-items: center; color: var(--navy); border: 5px solid var(--cyan); border-radius: 50%; font-size: 1.2rem; font-weight: 900; }
.essay-line { width: 100%; height: 9px; margin: 14px 0; border-radius: 99px; background: #dce3e7; }
.essay-line:nth-child(3n) { width: 83%; }
.essay-line:nth-child(4n) { width: 91%; }
.mark { position: absolute; color: var(--red); font-family: Georgia, serif; font-size: 1rem; font-style: italic; font-weight: 700; }
.mark-one { top: 190px; right: 14px; transform: rotate(-6deg); }
.mark-two { position: static; display: block; text-align: right; transform: rotate(4deg); }
.paper-note { margin-top: 18px; padding: 12px 14px; color: #0c6b76; background: #e6fbfd; border-left: 4px solid var(--cyan); border-radius: 7px; font-size: .86rem; font-weight: 700; }

.strip { padding: 22px 0; background: var(--yellow); }
.strip-list { display: flex; justify-content: center; gap: 12px 34px; margin: 0; padding: 0; list-style: none; font-weight: 900; text-align: center; }
.strip-list li::before { content: "✓"; margin-right: 8px; }

.section { padding: 100px 0; }
.section-soft { background: var(--soft); }
.intro { max-width: 760px; margin-bottom: 48px; }
.intro.center { margin-inline: auto; }
.intro p:last-child { color: var(--muted); font-size: 1.08rem; }
.method .intro p:last-child { color: #c2d0d9; }
.problem-grid { display: grid; gap: 30px; grid-template-columns: .9fr 1.1fr; }
.redacao-card { min-height: 430px; padding: 34px; background: white; border: 1px solid #dce2e6; border-radius: var(--radius); box-shadow: var(--shadow); }
.redacao-card .title-line { width: 65%; height: 12px; margin-bottom: 24px; background: var(--navy); border-radius: 99px; }
.redacao-card .essay-line { height: 8px; }
.study-tip { display: inline-block; margin: 3px 0 9px; color: var(--red); border-bottom: 2px solid var(--red); font-family: Georgia, serif; font-style: italic; transform: rotate(-2deg); }
.problem-copy { padding: 20px 0; }
.problem-copy blockquote { margin: 26px 0 0; padding: 20px 22px; background: white; border-left: 5px solid var(--cyan); border-radius: 0 14px 14px 0; font-weight: 700; }

.regrets { display: grid; gap: 14px; margin-top: 30px; }
.regret { padding: 18px 20px; color: #334353; background: white; border: 1px solid #dbe2e7; border-radius: 12px; }
.regret::before { content: "“"; color: var(--cyan); font-size: 1.5rem; font-weight: 900; }

.method { padding: 100px 0; color: white; background: var(--navy); }
.steps { position: relative; display: grid; gap: 20px; grid-template-columns: repeat(4, 1fr); margin-top: 45px; }
.step { position: relative; padding: 28px 24px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 18px; }
.step-number { display: grid; width: 38px; height: 38px; place-items: center; margin-bottom: 22px; color: var(--navy); background: var(--yellow); border-radius: 50%; font-weight: 900; }
.step p { margin-bottom: 0; color: #c2d0d9; }
.step:not(:last-child)::after { position: absolute; top: 41px; right: -17px; z-index: 2; content: "→"; color: var(--cyan); font-size: 1.5rem; font-weight: 900; }

.dream-grid { display: grid; align-items: center; gap: 60px; grid-template-columns: 1fr 1fr; }
.checklist { display: grid; gap: 10px; margin: 25px 0 0; padding: 0; list-style: none; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; }
.checklist li::before { content: "✓"; display: grid; flex: 0 0 25px; height: 25px; place-items: center; color: var(--navy); background: var(--cyan); border-radius: 50%; font-size: .78rem; font-weight: 900; }
.target-card { padding: 38px; color: white; background: var(--navy); border-radius: var(--radius); box-shadow: var(--shadow); }
.target-card h3 { color: var(--yellow); font-size: 1.6rem; }
.target-card ul { display: grid; gap: 13px; margin: 24px 0 0; padding: 0; list-style: none; }
.target-card li { padding-left: 24px; position: relative; }
.target-card li::before { position: absolute; left: 0; content: "→"; color: var(--cyan); font-weight: 900; }

.materials-grid { display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); margin-top: 45px; }
.material { overflow: hidden; min-height: 300px; padding: 28px; background: white; border: 1px solid #dce3e7; border-radius: 20px; }
.material:last-child { grid-column: span 2; }
.material strong { display: block; margin: 16px 0 7px; font-size: 1.12rem; }
.material p { margin: 0; color: var(--muted); }
.material-icon { display: grid; width: 50px; height: 50px; place-items: center; color: white; background: var(--cyan); border-radius: 14px; font-size: 1.3rem; font-weight: 900; }
.material.featured { color: white; background: var(--navy); border-color: var(--navy); }
.material.featured p { color: #c9d4dc; }
.material.featured .material-icon { color: var(--navy); background: var(--yellow); }
.books { display: flex; align-items: flex-end; justify-content: center; min-height: 260px; margin: 55px auto 0; perspective: 900px; }
.book { position: relative; width: 210px; aspect-ratio: .7; margin: 0 -18px; padding: 25px 22px; color: white; background: var(--navy); border: 1px solid rgba(255,255,255,.2); border-radius: 8px 16px 16px 8px; box-shadow: 18px 26px 45px rgba(13,27,42,.25); transform: rotateY(-10deg) rotateZ(-3deg); }
.book:nth-child(2) { z-index: 2; background: var(--cyan); transform: translateY(-24px); }
.book:nth-child(3) { background: #152f49; transform: rotateY(10deg) rotateZ(3deg); }
.book::after { position: absolute; right: 12px; bottom: 14px; left: 12px; height: 5px; content: ""; background: var(--yellow); border-radius: 9px; }
.book-mark { width: 52px; height: 62px; margin-bottom: 45px; }
.book small { display: block; color: #dce8ee; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.book b { display: block; margin-top: 8px; font-size: 1.35rem; line-height: 1.1; }

.compare { display: grid; gap: 28px; grid-template-columns: 1fr 1fr; margin-top: 42px; }
.compare-card { padding: 35px; background: white; border: 1px solid #dbe1e5; border-radius: 20px; }
.compare-card.bad { color: #53606b; }
.compare-card.good { color: white; background: var(--navy); border-color: var(--navy); box-shadow: var(--shadow); }
.compare-card h3 { display: flex; align-items: center; justify-content: space-between; font-size: 1.45rem; }
.compare-card ul { display: grid; gap: 10px; margin: 24px 0 0; padding: 0; list-style: none; }
.compare-card li::before { content: "—"; margin-right: 9px; }
.compare-card.good li::before { content: "✓"; color: var(--cyan); }

.fit-grid { display: grid; gap: 28px; grid-template-columns: 1fr 1fr; margin-top: 45px; }
.fit-card { padding: 34px; border: 1px solid #dce2e6; border-radius: 20px; }
.fit-card h3 { font-size: 1.45rem; }
.fit-card ul { display: grid; gap: 12px; margin: 22px 0 0; padding-left: 20px; }
.fit-card.yes { background: #e9fbfd; border-color: rgba(0,180,198,.3); }
.fit-card.no { background: #f7f7f7; }

.deadline { overflow: hidden; padding: 92px 0; color: white; background: #111c27; }
.deadline::after { position: absolute; top: -160px; right: -120px; width: 420px; height: 420px; content: ""; background: rgba(0,180,198,.08); border-radius: 50%; }
.countdown { display: grid; grid-template-columns: repeat(4, 112px); justify-content: center; gap: 12px; margin: 38px auto; }
.time-box { padding: 17px 10px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 14px; text-align: center; }
.time-box b { display: block; color: var(--yellow); font-size: 2rem; line-height: 1; }
.time-box span { color: #b9c7d1; font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }

.offer { padding: 100px 0; background: var(--soft); }
.offer-card { display: grid; overflow: hidden; grid-template-columns: 1.05fr .95fr; background: white; border-radius: 28px; box-shadow: var(--shadow); }
.offer-main { padding: 52px; }
.offer-main ul { display: grid; gap: 12px; margin: 30px 0 0; padding: 0; list-style: none; }
.offer-main li { display: flex; gap: 10px; }
.offer-main li::before { content: "✓"; color: var(--cyan); font-weight: 900; }
.offer-buy { display: flex; flex-direction: column; justify-content: center; padding: 52px; color: white; background: var(--navy); }
.price-note { color: #b9c7d1; font-size: .9rem; }
.price-original { margin-top: 12px; color: #b9c7d1; font-size: 1.1rem; }
.price { margin: 3px 0 22px; color: white; font-size: clamp(3.2rem, 6vw, 5.2rem); font-weight: 900; letter-spacing: -.07em; line-height: 1; }
.price small { color: #c9d5dc; font-size: .26em; letter-spacing: 0; }
.secure { margin: 14px 0 0; color: #aebcc6; font-size: .78rem; text-align: center; }
.guarantee { display: flex; align-items: center; gap: 18px; margin-top: 28px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); }
.shield { display: grid; flex: 0 0 46px; height: 52px; place-items: center; color: var(--navy); background: var(--cyan); clip-path: polygon(50% 0, 92% 15%, 86% 70%, 50% 100%, 14% 70%, 8% 15%); font-weight: 900; }
.guarantee p { margin: 0; color: #c2cfd7; font-size: .85rem; }

.faq { padding: 100px 0; }
.faq-list { display: grid; gap: 13px; margin-top: 35px; }
details { padding: 22px 24px; background: white; border: 1px solid #dbe2e7; border-radius: 14px; }
summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; font-weight: 800; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--cyan); font-size: 1.5rem; }
details[open] summary::after { content: "−"; }
details p { margin: 16px 0 0; color: var(--muted); }

.final { padding: 95px 0; color: white; background: var(--navy); text-align: center; }
.final p { max-width: 690px; margin: 0 auto 30px; color: #c6d2da; }
footer { padding: 28px 0; color: #8ea0ad; background: #08121c; font-size: .78rem; text-align: center; }

.js-reveal .reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.js-reveal .reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .hero-grid, .problem-grid, .dream-grid, .offer-card { grid-template-columns: 1fr; }
  .hero { padding-top: 64px; }
  .hero-copy { text-align: center; }
  .hero-actions { justify-content: center; }
  .paper-wrap { width: min(520px, 100%); margin-inline: auto; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step:nth-child(2)::after { display: none; }
  .materials-grid { grid-template-columns: 1fr 1fr; }
  .offer-buy { padding-top: 45px; padding-bottom: 45px; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .container, .narrow { width: min(100% - 28px, 1160px); }
  .section, .method, .offer, .faq { padding: 74px 0; }
  .nav-link { display: none; }
  .brand { font-size: .92rem; }
  .hero { padding: 58px 0 68px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .paper { min-height: 400px; padding: 28px 22px; }
  .paper-wrap { padding: 8px; }
  .strip-list { flex-direction: column; }
  .steps, .materials-grid, .compare, .fit-grid { grid-template-columns: 1fr; }
  .material:last-child { grid-column: auto; }
  .step:not(:last-child)::after { display: none; }
  .books { min-height: 225px; margin: 0; overflow: hidden; transform: none; }
  .book { width: 132px; margin: 0 -9px; padding: 16px 13px; }
  .book-mark { width: 38px; height: 46px; margin-bottom: 28px; }
  .book small { font-size: .58rem; }
  .book b { font-size: .92rem; }
  .countdown { grid-template-columns: repeat(2, 105px); }
  .offer-main, .offer-buy { padding: 34px 24px; }
  .btn { padding-inline: 16px; font-size: .9rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .js-reveal .reveal { opacity: 1; transform: none; }
}


/* Keep anchor destinations visible below the sticky header. */
section[id], main[id] { scroll-margin-top: 88px; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 30;
  padding: 12px 18px;
  color: var(--navy);
  background: var(--yellow);
  border-radius: 8px;
  font-weight: 700;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

/* VSL and CTA in the hero. */
.hero { padding: 32px 0; }
.hero-grid { grid-template-areas: "copy video" "actions video"; grid-template-columns: 1.2fr .8fr; gap: 24px 48px; }
.hero-copy { grid-area: copy; align-self: end; }
.hero-actions { grid-area: actions; align-self: start; margin-top: 0; }
.vsl { grid-area: video; width: min(100%, 280px); justify-self: center; text-align: center; }
.vsl-screen { overflow: hidden; aspect-ratio: 9 / 16; background: #08121c; border: 1px solid rgba(255,255,255,.18); border-radius: 16px; box-shadow: 0 20px 55px rgba(0,0,0,.3); }
.vsl-screen video { display: block; width: 100%; height: 100%; object-fit: contain; pointer-events: none; }
@media (max-width: 900px) {
  .hero-grid { grid-template-areas: "copy" "video" "actions"; grid-template-columns: 1fr; gap: 12px; }
  .hero { padding: 20px 0; }
  .hero-copy h1 { font-size: clamp(1.5rem, 4vw, 2.3rem); margin-bottom: 12px; }
  .hero-copy .tag { margin-bottom: 8px; padding-block: 4px; }
  .hero-copy .lead { margin-bottom: 0; font-size: .9rem; }
  .vsl { width: min(100%, 320px); }
  .hero-actions { gap: 8px; width: 100%; }
}