:root {
  color-scheme: dark;
  --bg: #0c0e11;
  --bg-soft: #12151a;
  --panel: #171b21;
  --panel-strong: #1d222a;
  --text: #f4f1e9;
  --muted: #aaa59b;
  --line: #2a3039;
  --gold: #d4af37;
  --gold-soft: #f0d77a;
  --gold-ink: #17130a;
  --danger: #e7b4a4;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
  --max: 760px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% -8%, rgba(212, 175, 55, 0.16), transparent 34rem),
    radial-gradient(circle at 90% 10%, rgba(96, 121, 150, 0.14), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--gold-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #fff1b8;
}

img {
  max-width: 100%;
  display: block;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  padding: 0.65rem 0.9rem;
  border-radius: 10px;
  background: var(--gold);
  color: var(--gold-ink);
  font-weight: 800;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 1.25rem 0 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand:hover {
  color: var(--gold-soft);
}

.badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

main {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.hero {
  padding: 4.5rem 0 3.25rem;
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--gold-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: ui-serif, Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: -0.028em;
  line-height: 1.06;
  text-wrap: balance;
}

h1 {
  max-width: 13ch;
  font-size: clamp(2.7rem, 10vw, 5.3rem);
}

h2 {
  font-size: clamp(1.85rem, 5vw, 2.65rem);
}

h3 {
  font-size: 1.45rem;
  line-height: 1.15;
}

.lede {
  max-width: 58ch;
  margin: 1.4rem 0 0;
  color: #d4d0c7;
  font-size: clamp(1.06rem, 2.5vw, 1.2rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3.15rem;
  padding: 0.82rem 1.12rem;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 0.97rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:focus-visible,
.text-link:focus-visible,
.brand:focus-visible,
.card-link:focus-visible {
  outline: 3px solid var(--gold-soft);
  outline-offset: 4px;
}

.btn-primary {
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  box-shadow: 0 12px 30px rgba(212, 175, 55, 0.16);
  color: var(--gold-ink);
}

.btn-primary:hover {
  box-shadow: 0 16px 36px rgba(212, 175, 55, 0.24);
  color: var(--gold-ink);
}

.btn-ghost {
  border-color: #3a414c;
  background: rgba(255, 255, 255, 0.025);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: #5b6471;
  color: var(--text);
}

.micro {
  max-width: 56ch;
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.disclosure {
  margin: 0 0 3.5rem;
  padding: 1rem 1.05rem;
  border: 1px solid #3f3824;
  border-left: 4px solid var(--gold);
  border-radius: 0 12px 12px 0;
  background: rgba(212, 175, 55, 0.07);
  color: #ded8ca;
  font-size: 0.88rem;
  line-height: 1.55;
}

.disclosure strong {
  color: #fff1b8;
}

.section {
  margin-top: 3.6rem;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.35rem;
}

.section-note {
  max-width: 30ch;
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: right;
}

.book-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.book {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012));
  box-shadow: var(--shadow);
}

.book-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: start;
}

.book-num {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border: 1px solid #4c4228;
  border-radius: 50%;
  color: var(--gold-soft);
  font-size: 0.78rem;
  font-weight: 800;
}

.author {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.book p {
  margin: 0.9rem 0 0;
  color: #d3cec4;
}

.text-link {
  display: inline-flex;
  margin-top: 0.95rem;
  font-size: 0.9rem;
  font-weight: 800;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.steps {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  counter-reset: step;
  list-style: none;
}

.steps li {
  position: relative;
  margin: 0;
  padding: 1rem 1rem 1rem 3.4rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-soft);
  color: #d6d1c7;
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 1rem;
  display: grid;
  width: 1.65rem;
  height: 1.65rem;
  place-items: center;
  border-radius: 50%;
  background: var(--gold);
  color: var(--gold-ink);
  font-size: 0.78rem;
  font-weight: 900;
}

.final-cta {
  margin-top: 3.6rem;
  padding: clamp(1.4rem, 5vw, 2.3rem);
  border: 1px solid #4c4228;
  border-radius: 22px;
  background:
    radial-gradient(circle at 85% 10%, rgba(212, 175, 55, 0.2), transparent 20rem),
    var(--panel-strong);
  box-shadow: var(--shadow);
}

.final-cta h2 {
  max-width: 18ch;
}

.final-cta p {
  max-width: 56ch;
  margin: 0.9rem 0 0;
  color: #d3cec4;
}

.final-cta .btn {
  margin-top: 1.3rem;
}

.site-footer {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8rem;
}

.site-footer p {
  margin: 0.45rem 0 0;
}

.site-footer a {
  color: #d7d1c5;
}

.chooser {
  display: grid;
  gap: 1rem;
  margin-top: 2.4rem;
}

.card-link {
  display: block;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.card-link:hover {
  transform: translateY(-2px);
  border-color: #5a4c28;
  background: var(--panel-strong);
  color: var(--text);
}

.card-link span {
  display: block;
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.card-link strong {
  display: block;
  font-family: ui-serif, Georgia, "Times New Roman", serif;
  font-size: 1.4rem;
  line-height: 1.15;
}

.notice {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 560px) {
  .site-header {
    align-items: flex-start;
  }

  .badge {
    display: none;
  }

  .hero {
    padding-top: 3.1rem;
  }

  h1 {
    max-width: 11ch;
  }

  .section-head {
    display: block;
  }

  .section-note {
    margin-top: 0.65rem;
    text-align: left;
  }

  .btn {
    width: 100%;
  }

  .hero-actions {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}