:root {
  --bg: #07162f;
  --bg-soft: #0b2143;
  --card: rgba(255, 255, 255, 0.075);
  --card-hover: rgba(255, 255, 255, 0.12);
  --text: #f5f8ff;
  --muted: #b9c7dd;
  --accent: #88d8ff;
  --accent-strong: #ffffff;
  --line: rgba(255, 255, 255, 0.14);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  --radius: 24px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(136, 216, 255, 0.16), transparent 36rem),
    linear-gradient(145deg, var(--bg), #020815 72%);
  min-height: 100vh;
  line-height: 1.6;
}

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

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

code {
  background: rgba(255, 255, 255, 0.12);
  padding: 0.1rem 0.35rem;
  border-radius: 0.35rem;
}

.site-header,
.site-footer,
.section,
.hero {
  width: min(var(--max-width), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  padding: 1.4rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
}

.main-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.hero {
  min-height: 58vh;
  display: grid;
  place-items: center;
  padding: 5rem 0 4rem;
}

.hero-content {
  width: min(820px, 100%);
  text-align: center;
}

.eyebrow,
.meta {
  margin: 0 0 0.55rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 800;
}

h1,
h2,
h3 {
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.04em;
}

h1 {
  font-size: clamp(3rem, 8vw, 6.8rem);
  max-width: 900px;
  margin-inline: auto;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

h3 {
  font-size: 1.25rem;
}

.lead {
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  max-width: 720px;
  margin: 1.6rem auto 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
  font-weight: 700;
}

.button:hover {
  background: rgba(255, 255, 255, 0.16);
}

.section {
  padding: 4.5rem 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2rem;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  margin: 1rem 0 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.card:hover {
  transform: translateY(-4px);
  background: var(--card-hover);
  border-color: rgba(255, 255, 255, 0.26);
}

.episode-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--bg-soft);
}

.card-body {
  padding: 1.2rem;
}

.card-body p:not(.meta) {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.theme-list {
  display: grid;
  gap: 0.9rem;
}

.theme-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.07);
}

.theme-link:hover {
  background: rgba(255, 255, 255, 0.12);
}

.theme-link strong,
.theme-link small {
  display: block;
}

.theme-link small {
  margin-top: 0.35rem;
  color: var(--muted);
}

.page-shell {
  width: min(860px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4rem 0 6rem;
}

.back-link {
  color: var(--accent);
  font-weight: 700;
}

.page-hero {
  margin-top: 2rem;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.page-hero img {
  width: min(320px, 100%);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 18px;
  margin-bottom: 1.5rem;
}

.content-block {
  color: var(--muted);
  font-size: 1.05rem;
}

.content-block h2 {
  color: var(--text);
  margin-top: 2rem;
  font-size: 1.8rem;
}

.content-block ul {
  padding-left: 1.2rem;
}

.site-footer {
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding: 2rem 0;
}

@media (max-width: 800px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .hero {
    min-height: auto;
    padding-top: 3rem;
  }
}