:root {
  color-scheme: dark;
  --ink: #071621;
  --navy: #0b1d2a;
  --panel: #102b3c;
  --line: #24495e;
  --paper: #f4f7fb;
  --muted: #b8c9d7;
  --aqua: #69ddd8;
  --blue: #9bc8f4;
  --orange: #ff9f43;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.skip-link { position: absolute; left: 1rem; top: -5rem; z-index: 10; background: var(--aqua); color: var(--ink); padding: .75rem 1rem; font-weight: 800; }
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
.site-header {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; font-weight: 850; letter-spacing: .02em; }
.brand-mark { display: grid; place-items: center; width: 2.25rem; height: 2.25rem; border-radius: .65rem; background: var(--aqua); color: var(--ink); font-size: 1.25rem; }
nav { display: flex; gap: 1.25rem; }
nav a { color: var(--muted); text-decoration-thickness: 1px; text-underline-offset: .3rem; }
main, footer { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.hero { min-height: 650px; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: clamp(2rem, 5vw, 5rem); padding: 4rem 0; }
.eyebrow { margin: 0 0 .8rem; color: var(--aqua); font-size: .84rem; font-weight: 900; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.02; letter-spacing: -.045em; }
h1 { max-width: 12ch; font-size: clamp(3.5rem, 7vw, 6.5rem); text-transform: uppercase; }
h1 span { color: var(--aqua); }
.intro { max-width: 55ch; margin: 1.5rem 0 2rem; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.28rem); }
.hero-copy { min-width: 0; }
.schedule-card { display: flex; width: 100%; max-width: 34rem; flex-direction: column; padding: .85rem 1rem; border-left: 5px solid var(--orange); background: #122839; }
.schedule-card strong { font-size: 1.15rem; }
.schedule-card span { color: var(--muted); }
.hero-art { min-width: 0; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 1.4rem; box-shadow: 18px 18px 0 #0e3042; transform: rotate(1.5deg); }
.hero-art img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.episode-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: end; padding: 5rem 0 2rem; border-top: 1px solid var(--line); }
h2 { font-size: clamp(2.2rem, 5vw, 4rem); }
.episode-intro > p { margin: 0; color: var(--muted); font-size: 1.1rem; }
.featured-card { display: grid; grid-template-columns: 110px 1fr .9fr; gap: 2rem; align-items: center; padding: clamp(1.5rem, 4vw, 3rem); border: 1px solid var(--line); border-radius: 1.25rem; background: linear-gradient(135deg, #112f42, #0b2130); }
.episode-number { color: var(--aqua); font-size: clamp(4rem, 8vw, 7rem); font-weight: 950; line-height: 1; }
.card-kicker { margin: 0 0 .5rem; color: var(--orange); font-weight: 850; }
.featured-card h3 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
.featured-card p { color: var(--muted); }
.button { display: inline-block; padding: .8rem 1rem; border-radius: .55rem; background: var(--aqua); color: var(--ink); font-weight: 900; text-decoration: none; }
.button:hover { background: #8bf1ed; }
.concept-chips { margin: 0; padding: 0; list-style: none; display: grid; gap: .7rem; }
.concept-chips li { padding: .8rem 1rem; border: 1px solid var(--line); border-radius: .7rem; background: #081a26; }
.format-strip { margin: 5rem 0; padding: 2rem; border-top: 4px solid var(--aqua); background: var(--paper); color: var(--ink); }
.format-strip h2 { font-size: clamp(1.7rem, 4vw, 3rem); }
.format-strip p { max-width: 70ch; margin-bottom: 0; color: #314957; }
.roadmap-section { padding: 4rem 0 0; }
.section-heading { max-width: 780px; margin-bottom: 2rem; }
.roadmap-grid { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.roadmap-card { min-height: 250px; padding: 1.35rem; border: 1px solid var(--line); border-radius: 1rem; background: #0c2230; }
.roadmap-card.current-series { border-top: 4px solid var(--blue); }
.roadmap-card.bridge-card { border-top: 4px solid var(--orange); }
.roadmap-card.finale-card { border-top: 4px solid var(--aqua); background: #103044; }
.roadmap-meta { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .84rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.roadmap-meta span:first-child { color: var(--aqua); font-size: 1.15rem; }
.roadmap-card h3 { margin: 1.2rem 0 1rem; font-size: 1.45rem; letter-spacing: -.025em; }
.roadmap-card ul { margin: 0; padding-left: 1.15rem; color: var(--muted); }
.episode-hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 5vw, 5rem); align-items: end; padding: 5rem 0; }
.episode-hero h1 { max-width: none; }
.category-link { display: inline-block; margin-bottom: 2rem; color: var(--aqua); font-weight: 900; text-underline-offset: .3rem; }
.episode-label { margin: 0 0 .4rem; color: var(--orange); font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.availability-card { padding: 1.5rem; border: 1px solid var(--line); border-radius: 1rem; background: #0d2738; }
.availability-card h2 { font-size: 2rem; }
.availability-list { margin: 1.5rem 0 0; padding: 0; list-style: none; display: grid; gap: 1rem; }
.availability-list li { display: grid; gap: .2rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.availability-list span { color: var(--muted); }
.availability-list a { color: var(--aqua); font-weight: 800; }
.question-set, .concept-section, .source-section { padding: 5rem 0; border-top: 1px solid var(--line); }
.compact-heading { margin-bottom: 1rem; }
.section-note { color: var(--muted); margin: 0 0 2rem; }
.question-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.question-card { padding: 1.5rem; border-radius: 1rem; background: var(--paper); color: var(--ink); }
.question-code, .concept-number { margin: 0 0 1rem; color: #b85b00; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.question-card h3 { font-size: 1.25rem; line-height: 1.3; letter-spacing: -.02em; }
.question-card ol { margin: 1.25rem 0 0; padding-left: 1.6rem; }
.question-card li { padding: .25rem 0 .25rem .3rem; }
.concept-feature { display: grid; grid-template-columns: 1fr minmax(300px, .7fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; padding: 4rem 0; }
.concept-feature + .concept-feature { border-top: 1px solid var(--line); }
.concept-feature.reverse .concept-copy { order: 2; }
.concept-copy { position: sticky; top: 1.5rem; }
.concept-copy h3 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
.concept-copy > p:not(.concept-number) { color: var(--muted); font-size: 1.08rem; }
.keyword-list { margin: 1.5rem 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: .6rem; }
.keyword-list li { padding: .5rem .75rem; border: 1px solid var(--line); border-radius: 999px; background: #102b3c; font-weight: 750; }
.media-status { display: grid; gap: .45rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); }
.media-status strong { color: var(--paper); }
.concept-art { min-width: 0; margin: 0; }
.concept-art a { display: block; overflow: hidden; border: 1px solid var(--line); border-radius: 1rem; box-shadow: 12px 12px 0 #0e3042; }
.concept-art img { width: 100%; height: auto; }
.concept-art figcaption { margin-top: 1rem; color: var(--muted); font-size: .9rem; }
.source-section > p { max-width: 65ch; color: var(--muted); }
.source-list { columns: 2; column-gap: 3rem; margin: 2rem 0 0; padding-left: 1.25rem; }
.source-list li { break-inside: avoid; margin-bottom: .75rem; }
.source-list a { color: var(--blue); text-underline-offset: .25rem; }
footer { padding: 2rem 0 3rem; border-top: 1px solid var(--line); color: var(--muted); }
.not-found { min-height: 100vh; display: grid; align-content: center; justify-items: start; }
@media (max-width: 780px) {
  .site-header { align-items: flex-start; padding: 1rem 0; }
  nav { flex-direction: column; gap: .25rem; text-align: right; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding: 3rem 0 5rem; }
  h1 { font-size: clamp(2.25rem, 12vw, 3rem); }
  .hero-art { box-shadow: 10px 10px 0 #0e3042; transform: none; }
  .episode-intro, .featured-card, .episode-hero, .concept-feature { grid-template-columns: 1fr; gap: 1.25rem; }
  .episode-number { font-size: 3.5rem; }
  .roadmap-grid, .question-grid { grid-template-columns: 1fr; }
  .roadmap-card { min-height: 0; }
  .concept-feature.reverse .concept-copy { order: 0; }
  .concept-copy { position: static; }
  .source-list { columns: 1; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}