:root {
  color-scheme: dark;
  --bg: #070707;
  --surface: #111114;
  --surface-strong: #1e1e23;
  --text: #ece8df;
  --muted: #a9a49a;
  --accent: #b88f52;
  --accent-soft: #f7e6c0;
  --electric: #64c6ff;
  --border: rgba(255,255,255,.08);
  --shadow: 0 30px 80px rgba(0,0,0,.45);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, rgba(100,198,255,.12), transparent 25%),
              radial-gradient(circle at bottom right, rgba(184,143,82,.12), transparent 20%),
              var(--bg);
  color: var(--text);
  line-height: 1.65;
}

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

a {
  color: var(--electric);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

button,
input[type="submit"] {
  font: inherit;
}

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(7,7,7,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.container {
  width: min(1140px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.site-brand {
  display: grid;
  gap: .25rem;
}

.site-brand strong {
  font-size: 1.1rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--accent);
}

.site-brand span {
  display: block;
  color: var(--muted);
  font-size: .9rem;
}

.site-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-links li {
  margin: 0;
}

.site-links a {
  color: var(--muted);
  font-size: .95rem;
}

.site-links a.active,
.site-links a:hover,
.site-links a:focus-visible {
  color: var(--electric);
}

.site-links a.active {
  border-bottom: 2px solid var(--electric);
  padding-bottom: .1rem;
}

.site-links a.primary-action {
  padding: .75rem 1.35rem;
  background: linear-gradient(135deg, var(--accent), #ffdca0);
  color: #111;
  border: none;
  border-radius: 999px;
  transition: transform .2s ease, filter .2s ease;
}

.site-links a.primary-action:hover,
.site-links a.primary-action:focus-visible {
  transform: translateY(-1px);
  color: #111;
  text-decoration: none;
}

.site-links a.primary-action.active {
  border-bottom: none;
  padding-bottom: .75rem;
}

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

.hero {
  padding: 5rem 0 3rem;
}

.hero-with-image {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 1fr);
  align-items: center;
  gap: 2rem;
}

.hero-copy {
  display: grid;
  gap: 1.5rem;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(3.2rem, 5vw, 5.2rem);
  line-height: .95;
  letter-spacing: -.04em;
  max-width: 12ch;
}

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image img {
  width: 50%;
  max-width: 320px;
  height: auto;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 32px 90px rgba(0,0,0,.35);
}

.hero-copy p.lead {
  max-width: 72ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.hero-actions .secondary-link {
  color: var(--text);
  border-bottom: 1px solid rgba(255,255,255,.15);
  padding-bottom: 2px;
}

.question-band,
.section-panel {
  background: rgba(17,17,20,.95);
  border: 1px solid rgba(255,255,255,.05);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 2rem;
  margin: 2rem 0;
}

.question-band h2,
.section-panel h2 {
  margin-top: 0;
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.grid-3,
.grid-2,
.community-grid,
.footer-grid {
  display: grid;
  gap: 1.5rem;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: rgba(14,14,18,.9);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 26px;
  padding: 1.75rem;
  box-shadow: 0 24px 56px rgba(0,0,0,.3);
}

.card h3 {
  margin-top: 0;
  margin-bottom: .75rem;
}

.card p {
  margin: .75rem 0 0;
  color: var(--muted);
}

.card small {
  color: var(--accent-soft);
}

.book-panel {
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
  align-items: start;
}

.book-details {
  display: grid;
  gap: 1rem;
}

.book-card {
  padding: 2rem;
  background: linear-gradient(160deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.06);
}

.book-card h3 {
  margin-top: 0;
}

.book-card .status {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .35rem .8rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.1);
  color: var(--accent-soft);
  background: rgba(184,143,82,.12);
  font-size: .85rem;
}

.cta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  margin: 3rem 0 0;
  padding: 2rem;
  background: rgba(28,28,34,.95);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
}

.cta-bar h2 {
  margin: 0;
}

.secondary-button,
.form-button {
  border: 1px solid rgba(255,255,255,.15);
  background: transparent;
  color: var(--text);
  padding: .95rem 1.4rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease;
}

.secondary-button:hover,
.form-button:hover {
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.25);
}

.legal-link {
  color: var(--muted);
}

.reader-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.reader-card {
  background: rgba(12,12,16,.9);
  padding: 1.75rem;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.06);
}

.reader-card h3 {
  margin-top: 0;
}

.reader-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.reader-card li {
  margin-bottom: .6rem;
  color: var(--muted);
}

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

.news-list li {
  background: rgba(17,17,20,.95);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 24px;
  padding: 1.25rem;
}

.news-list h4,
.news-list p {
  margin: .35rem 0;
}

.author-panel {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1.5fr) 320px;
  align-items: center;
}

.author-card {
  padding: 2rem;
  background: rgba(14,14,18,.9);
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.06);
}

.author-card h3 {
  margin-top: 0;
}

.author-links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.author-links a {
  color: var(--electric);
}

.email-form {
  display: grid;
  gap: 1rem;
  background: rgba(17,17,20,.98);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 26px;
  padding: 2rem;
}

.email-form label {
  display: grid;
  gap: .5rem;
  font-size: .95rem;
}

.email-form input[type="email"],
.email-form input[type="text"] {
  width: 100%;
  padding: 1rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.03);
  color: var(--text);
}

.email-form input[type="checkbox"] {
  margin-right: .75rem;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
  }

.chapter-page .section-panel {
  padding: 2rem;

.chapter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

. align-items: flex-start;
  gap: .75rem;
}

.email-form button {
  width: fit-content;
}

.form-message {
  padding: 1rem 1.15rem;
  border-radius: 16px;
  background: rgba(100,198,255,.08);
  color: var(--electric);
  border: 1px solid rgba(100,198,255,.15);
}

.footer {
  margin-top: auto;
  padding: 3rem 0 2rem;
}

.footer-grid {
  grid-template-columns: 1.5fr 1fr;
}

.footer small,
.footer p {
  color: var(--muted);
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer nav a {
  color: var(--muted);
}

.footer .brand-footer {
  margin-bottom: 1rem;
}

@media (max-width: 860px) {
  .hero-with-image {
    grid-template-columns: 1fr;
  }
  .hero-image {
    order: -1;
  }
  .book-panel,
  .author-panel,
  .grid-3,
  .grid-2,
  .community-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  transform: translateY(-120%);
  background: rgba(255,255,255,.95);
  color: #111;
  padding: .75rem 1rem;
  border-radius: 0 0 0 0.75rem;
  z-index: 20;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--electric);
  outline-offset: 3px;
}

@media (max-width: 640px) {
  .site-nav {
    flex-direction: column;
    align-items: flex-start;
  }
  .site-links {
    width: 100%;
    justify-content: space-between;
  }
  .primary-action {
    width: 100%;
    text-align: center;
  }
}