@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #050505;
  --panel: #0c0c0c;
  --line: #252525;
  --text: #f5f5f5;
  --muted: #a7a7a7;
  --lime: #b8ff00;
  --red: #e10600;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 15%, rgba(184,255,0,.08), transparent 28%),
    radial-gradient(circle at 15% 45%, rgba(225,6,0,.08), transparent 30%),
    var(--bg);
  color: var(--text);
  font-family: Inter, Arial, sans-serif;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }

.site-header {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 82px;
  display: flex;
  align-items: center;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.brand img {
  display: block;
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.brand span {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .08em;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  flex: 1;
}

.nav a {
  font-size: 11px;
  font-weight: 600;
  color: #ddd;
}

.nav a:hover { color: var(--lime); }

.whatsapp {
  border: 1px solid #4b6500;
  color: var(--lime);
  padding: 11px 15px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.hero {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 650px;
  padding: 95px 0 85px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 70px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 13px;
  color: var(--lime);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .15em;
}

.hero h1 {
  margin: 0 0 25px;
  font-size: clamp(52px, 7vw, 88px);
  line-height: .95;
  letter-spacing: -.06em;
}

.hero h1 span,
h2 span { color: var(--lime); }

.hero-lead {
  max-width: 650px;
  margin: 0 0 30px;
  color: #c6c6c6;
  font-size: 17px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 15px 20px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .03em;
}

.btn-primary {
  background: var(--red);
  border: 1px solid var(--red);
  color: white;
}

.btn-primary:hover {
  background: #b80500;
  border-color: #b80500;
}

.price {
  font-size: 22px;
  font-weight: 800;
}

.hero-cover {
  display: flex;
  justify-content: center;
}

.hero-cover img {
  display: block;
  width: min(100%, 380px);
  max-height: 530px;
  object-fit: contain;
  filter: drop-shadow(0 25px 45px rgba(0,0,0,.55));
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 100px 0;
  border-bottom: 1px solid var(--line);
}

.section-label {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 48px;
}

.section-label span {
  color: var(--lime);
  font-size: 12px;
  font-weight: 800;
}

.section-label p {
  margin: 0;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .14em;
  color: #888;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.two-col h2,
.section-intro h2,
.method h2,
.audience h2,
.author h2 {
  margin: 0;
  font-size: clamp(38px, 5vw, 62px);
  line-height: 1;
  letter-spacing: -.055em;
}

.two-col > div {
  color: #b8b8b8;
  font-size: 16px;
}

.learn .section-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 60px;
}

.section-intro > p {
  margin: 0;
  color: var(--muted);
  max-width: 500px;
}

.learn-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.learn-grid article {
  padding: 30px;
  min-height: 220px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.learn-grid strong {
  color: var(--lime);
  font-size: 11px;
}

.learn-grid h3 {
  margin: 35px 0 12px;
  font-size: 21px;
  line-height: 1.05;
}

.learn-grid p {
  margin: 0;
  color: #999;
  font-size: 13px;
}

.method-layout {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 100px;
}

.steps {
  border-top: 1px solid var(--line);
}

.steps > div {
  display: grid;
  grid-template-columns: 45px 1fr;
  gap: 15px;
  padding: 23px 0;
  border-bottom: 1px solid var(--line);
}

.steps span {
  color: var(--lime);
  font-size: 11px;
  font-weight: 800;
}

.steps p {
  margin: 0;
  color: #aaa;
  font-size: 14px;
}

.steps b { color: var(--text); }

.audience-box {
  padding: 70px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #0d0d0d, #070707);
}

.audience-box p {
  max-width: 680px;
  margin: 30px 0 0;
  color: #aaa;
  font-size: 16px;
}

.author-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 45px;
  align-items: center;
}

.author-photo {
  width: 150px;
  height: 200px;
  overflow: hidden;
  background: #111;
  border: 1px solid var(--line);
}
.author-photo img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.author-grid {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 40px;
  align-items: center;
}
.final-cta {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 105px 0;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 50px;
}

.final-cta h2 {
  margin: 0 0 25px;
  font-size: clamp(42px, 5vw, 70px);
  line-height: .98;
  letter-spacing: -.06em;
}

.final-cta p:not(.eyebrow) {
  margin: 0;
  color: #999;
}

.footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 40px 0 28px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr;
  gap: 40px;
  color: #888;
  font-size: 12px;
}

.footer .brand img {
  width: 60px;
  height: 60px;
}

.footer p {
  max-width: 260px;
  margin: 15px 0 0;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a:hover { color: var(--lime); }

.footer-copy {
  align-self: end;
  text-align: right;
}

@media (max-width: 900px) {
  .nav { display: none; }

  .site-header {
    justify-content: space-between;
  }

  .hero,
  .two-col,
  .learn .section-intro,
  .method-layout,
  .author-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 70px;
    gap: 50px;
  }

  .hero-cover {
    order: -1;
  }

  .learn-grid {
    grid-template-columns: 1fr 1fr;
  }

  .final-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer {
    grid-template-columns: 1fr;
  }

  .footer-copy {
    text-align: left;
  }
}

@media (max-width: 600px) {
  .site-header,
  .hero,
  .section,
  .final-cta,
  .footer {
    width: min(100% - 28px, 1180px);
  }

  .hero h1 { font-size: 50px; }

  .hero-cover img { width: min(100%, 300px); }

  .learn-grid {
    grid-template-columns: 1fr;
  }

  .audience-box {
    padding: 35px 25px;
  }

  .section {
    padding: 75px 0;
  }
}