:root {
  --bg: #0A0A0A;
  --fg: #F4F4F2;
  --muted: #8A8A8A;
  --rule: #2A2A2A;
  --surface: #1A1A1A;
  --gutter: clamp(1.5rem, 5vw, 4rem);
  /* Shared by the episode rows and the footer: they must stay the same size. */
  --type-row: clamp(0.95rem, 1.9vw, 1.45rem);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  padding: var(--gutter);
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

/* Links and summaries carry no underline, so a visible focus ring is the only
   keyboard affordance. Offset it so it never touches the text. */
:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 4px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

/* ---- Header ---- */

.logo {
  display: block;
  margin: 0;
  width: clamp(250px, 34vw, 520px);
  line-height: 0;
}

.logo svg { width: 100%; height: auto; display: block; fill: currentColor; }

.platforms {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.75rem;
  margin-top: clamp(2rem, 5vw, 3.5rem);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.platforms-label { color: var(--muted); letter-spacing: 0.12em; }

.platforms a { display: inline-flex; align-items: center; gap: 0.5em; transition: opacity 0.2s ease; }
.platforms a:hover { opacity: 0.55; }

.platform-icon { width: 1em; height: 1em; }

/* Measured in-browser: full names wrap to 2 lines below ~582px, so 40rem
   (640px) gives margin. Icon-only stays on one line down to ~300px. The rule
   is unscoped on purpose: the header nav and the per-episode listen links both
   mark their label with .platform-name, so they drop to icons together.
   Absolute positioning also takes the label out of the flex flow, so the
   0.5em icon-to-name gap does not linger as empty space. */
@media (max-width: 40rem) {
  .platform-icon { width: 1.25em; height: 1.25em; }
  .platform-name {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}

/* ---- Episodes ---- */

.episodes {
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
}

.episode { border-bottom: 1px solid var(--rule); }

.episode-summary {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: clamp(1.1rem, 2.2vw, 1.6rem) 0;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: var(--type-row);
  letter-spacing: 0.01em;
  text-transform: uppercase;
  transition: opacity 0.2s ease;
}

.episode-summary::-webkit-details-marker { display: none; }
.episode-summary:hover { opacity: 0.6; }

.episode-number { flex: none; color: var(--muted); }

.episode-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* The open/close affordance from the mockup. */
.episode-toggle {
  flex: none;
  position: relative;
  width: 1rem;
  height: 1rem;
}

.episode-toggle::before,
.episode-toggle::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 1px;
  background: currentColor;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.episode-toggle::after { transform: rotate(90deg); }
.episode[open] .episode-toggle::after { transform: rotate(0deg); opacity: 0; }

.episode-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding: 0.5rem 0 clamp(2.5rem, 5vw, 4rem);
}

.episode-art {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 6px;
  background: var(--surface);
}

.episode-heading {
  margin: 0;
  font-size: clamp(1.4rem, 3.4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.episode-meta {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.episode-description {
  margin-top: 1.5rem;
  max-width: 60ch;
  color: var(--muted);
  font-size: clamp(0.9rem, 1.1vw, 1rem);
  line-height: 1.6;
  text-align: justify;
  hyphens: auto;
}

.episode-description p { margin: 0 0 0.85em; }
.episode-description a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.episode-description a:hover { color: var(--fg); }

/* Sits directly under the description, so it takes that column's type in
   sentence case and reads as part of the prose rather than as a UI chip. */
/* An episode with no URLs yet in links.json renders an empty list: drop the label too. */
.episode-body:has(.episode-links:empty) .episode-listen-label { display: none; }

.episode-listen-label {
  margin-top: 1.75rem;
  color: var(--muted);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.episode-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
  margin-top: 0.85rem;
  padding: 0;
  list-style: none;
}

.episode-listen {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--rule);
  font-size: clamp(0.9rem, 1.1vw, 1rem);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: opacity 0.2s ease, border-color 0.2s ease;
}

.episode-listen:hover { opacity: 0.55; border-color: var(--fg); }

@media (max-width: 40rem) {
  .episode-panel { grid-template-columns: 1fr; }
}

/* ---- Footer ---- */

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: auto;
  padding-top: clamp(3rem, 8vw, 6rem);
  color: var(--fg);
  font-size: var(--type-row);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--bg);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}