:root {
  --bg: #08111f;
  --panel: #101c2f;
  --panel-soft: #14243b;
  --text: #f7fbff;
  --muted: #a9b8ca;
  --accent: #45e2a6;
  --accent-2: #8dd8ff;
  --dark: #07101b;
  --line: rgba(255, 255, 255, 0.14);
  --paper: #f7f1e8;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: linear-gradient(180deg, #08111f 0%, #0b1626 48%, #08111f 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0;
  background: rgba(8, 17, 31, 0.88);
  backdrop-filter: blur(18px);
}

.brand,
.nav a,
.text-link {
  color: var(--text);
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  letter-spacing: 0;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.nav nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

main {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: 42px;
  align-items: center;
  min-height: auto;
  padding: 48px 0 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p { margin-top: 0; }

h1 {
  max-width: 620px;
  margin-bottom: 20px;
  font-size: clamp(2.55rem, 4.3vw, 4.15rem);
  font-weight: 720;
  line-height: 1.03;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.55rem, 2.45vw, 2.35rem);
  font-weight: 680;
  line-height: 1.14;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h3 {
  margin-bottom: 10px;
  font-weight: 650;
}

strong { font-weight: 650; }

.lead,
.section p,
footer {
  color: var(--muted);
  line-height: 1.72;
}

.lead {
  max-width: 620px;
  font-size: clamp(1rem, 1.35vw, 1.15rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: #06140f;
  font-weight: 750;
  text-decoration: none;
  box-shadow: 0 16px 40px rgba(69, 226, 166, 0.16);
}

.button--ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: var(--line);
  box-shadow: none;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.trust-row span,
.tag {
  display: inline-flex;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font-size: 0.9rem;
}

.product-card {
  position: relative;
  display: grid;
  gap: 16px;
}

.logo-strip {
  width: min(100%, 420px);
  height: auto;
}

.book {
  min-height: 340px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent 32%),
    linear-gradient(145deg, #f4eadb 0%, #fbf7ef 44%, #bdf7db 140%);
  color: #0f172a;
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.34);
}

.book span {
  display: inline-flex;
  margin-bottom: 54px;
  padding: 8px 12px;
  border-radius: 8px;
  background: #0f766e;
  color: #ffffff;
  font-weight: 700;
}

.book h2 {
  max-width: 330px;
  color: #0f172a;
  font-size: clamp(1.85rem, 2.45vw, 2.55rem);
}

.book p { max-width: 330px; color: #334155; }

.card-note,
.sample-box,
article,
.bonus-list div,
.price,
.problem,
.answer-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(16, 28, 47, 0.78);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
}

.card-note { padding: 22px; }

.card-note p { margin: 8px 0 0; color: var(--muted); line-height: 1.6; }

.section {
  padding: 72px 0;
  border-top: 1px solid var(--line);
}

.problem { padding: 34px; }

.problem h2 { max-width: 920px; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 28px 0 60px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  overflow: hidden;
}

.stats div {
  padding: 24px;
  background: rgba(16, 28, 47, 0.86);
}

.stats strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: clamp(1.45rem, 2.2vw, 1.95rem);
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.stats span { color: var(--muted); }

.split {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 36px;
  align-items: center;
}

.reverse { grid-template-columns: 1.05fr 0.95fr; }

.sample-box { padding: 28px; }

.sample-box h3 {
  margin-top: 18px;
  font-size: clamp(1.15rem, 1.65vw, 1.55rem);
  line-height: 1.22;
  letter-spacing: 0;
}

.answer-panel {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 26px;
  padding: 30px;
}

.answer-grid {
  display: grid;
  gap: 14px;
}

.simple-fit {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 28px;
  align-items: start;
}

.fit-list {
  display: grid;
  gap: 14px;
}

.fit-list div {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.fit-list strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: 1.06rem;
}

.fit-list span {
  color: var(--muted);
  line-height: 1.62;
}

.answer-grid article {
  padding: 20px;
  background: rgba(255, 255, 255, 0.035);
  box-shadow: none;
}

.section-intro {
  max-width: 740px;
  margin-bottom: 28px;
}

.old-price {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-thickness: 3px;
  white-space: nowrap;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

article { padding: 22px; }

article span {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--accent);
  font-weight: 700;
}

article p { margin-bottom: 18px; }

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  color: var(--accent);
  font-weight: 700;
}

.text-link::after {
  content: ">";
  margin-left: 8px;
}

.bonus-list {
  display: grid;
  gap: 16px;
}

.bonus-list div { padding: 20px; }

.bonus-list strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
}

.bonus-list span { color: var(--muted); line-height: 1.6; }

.price {
  margin: 58px 0;
  padding: 38px;
  text-align: center;
}

.price p {
  max-width: 660px;
  margin-right: auto;
  margin-left: auto;
}

.price small {
  display: block;
  margin-top: 16px;
  color: var(--muted);
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 22px 0;
}

.faq summary {
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 680;
}

.faq p { margin: 14px 0 0; }

.category-hero {
  padding: 56px 0 42px;
}

.category-list {
  display: grid;
  gap: 18px;
  padding-bottom: 72px;
}

.category-detail {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(16, 28, 47, 0.78);
}

.category-detail ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.category-detail .button {
  margin-top: 18px;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 54px;
  border-top: 1px solid var(--line);
}

footer p { margin: 6px 0 0; }

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.social-links svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 900px) {
  .hero,
  .split,
  .reverse,
  .grid,
  .stats,
  .answer-panel,
  .simple-fit,
  .category-detail {
    grid-template-columns: 1fr;
  }

  .nav nav { display: none; }

  .hero {
    min-height: auto;
    padding: 34px 0 52px;
  }

  h1 {
    font-size: clamp(2rem, 8.8vw, 3rem);
    line-height: 1.06;
  }

  h2 {
    font-size: clamp(1.35rem, 5.8vw, 2rem);
  }

  .lead {
    font-size: 1rem;
  }

  .book { min-height: 300px; }

  .book span { margin-bottom: 42px; }

  .section { padding: 48px 0; }

  .problem,
  .price,
  .answer-panel,
  .category-detail { padding: 24px; }

  footer {
    align-items: flex-start;
    flex-direction: column;
  }
}