/* Read-along player and transcript for a Walk of Berlin podcast episode.
   Brand: Fraunces for headings, Space Grotesk for reading copy, IBM Plex Mono for times.
   Yellow surfaces carry dark green text (never white on yellow). */

:root {
  --bw-green: #1B5E20;
  --bw-green-deep: #123D18;
  --bw-yellow: #FFE600;
  --bw-cream: #FAFAF5;
  --bw-ink: #212121;
  --bw-muted: #5E655B;
  --bw-line: #DCE8C8;
  --bw-highlight: rgba(255, 230, 0, 0.42);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bw-cream);
  color: var(--bw-ink);
  font-family: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-text-size-adjust: 100%;
}

.ra {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px;
}

/* Player bar */
.ra-player {
  padding: 14px 16px 14px;
  background: #fff;
  border: 1px solid var(--bw-line);
  border-radius: 14px;
}
.ra-top { display: flex; align-items: center; gap: 14px; }
.ra-art {
  flex: 0 0 72px;
  width: 72px;
  height: 72px;
  border-radius: 10px;
  object-fit: cover;
  background: var(--bw-green);
}
.ra-ep { min-width: 0; }
.ra-show {
  margin: 0 0 4px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bw-green);
}
.ra-title {
  margin: 0;
  font-family: Fraunces, Georgia, serif;
  font-weight: 600;
  font-size: 22px;
  line-height: 1.2;
  color: var(--bw-ink);
}

.ra-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}
.ra-play {
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--bw-green);
  color: #fff;
  cursor: pointer;
}
.ra-play svg { width: 22px; height: 22px; fill: currentColor; display: block; }
.ra-play [hidden] { display: none; }
.ra-play:focus-visible,
.ra-speed:focus-visible,
.ra-progress:focus-visible,
.ra-links a:focus-visible { outline: 3px solid var(--bw-green); outline-offset: 2px; }
.ra-play:disabled,
.ra-speed:disabled { opacity: 0.45; cursor: default; }
.ra-time {
  flex: 1;
  margin: 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 15px;
  color: var(--bw-ink);
  white-space: nowrap;
}
.ra-sep { color: var(--bw-muted); }
.ra-speed {
  flex: 0 0 auto;
  min-width: 60px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--bw-line);
  border-radius: 999px;
  background: #fff;
  color: var(--bw-green);
  font: 600 15px "IBM Plex Mono", ui-monospace, monospace;
  cursor: pointer;
}
.ra-speed:hover { border-color: var(--bw-green); }

.ra-progress {
  position: relative;
  height: 28px;
  margin-top: 10px;
  cursor: pointer;
  touch-action: none;
  user-select: none;
  border-radius: 8px;
}
.ra-progress[aria-disabled="true"] { cursor: default; opacity: 0.5; }
.ra-track {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 6px;
  margin-top: -3px;
  background: var(--bw-line);
  border-radius: 3px;
  overflow: hidden;
}
.ra-fill { height: 100%; width: 0; background: var(--bw-green); }
.ra-knob {
  position: absolute;
  top: 50%;
  left: 0;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border-radius: 50%;
  background: var(--bw-yellow);
  border: 2px solid var(--bw-green-deep);
  box-sizing: border-box;
}

.ra-note {
  margin: 10px 0 0;
  padding: 10px 12px;
  border-left: 3px solid var(--bw-green);
  background: #F2F8E8;
  font-size: 14px;
  line-height: 1.5;
  color: var(--bw-ink);
}
.ra-note[hidden] { display: none; }

.ra-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  margin-top: 8px;
  font-size: 14px;
}
.ra-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--bw-green);
  font-weight: 700;
}

/* Chapter chips: a single scrolling row. */
.ra-chapters {
  position: relative;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 16px 0 14px;
  scrollbar-width: none;
}
.ra-chapters::-webkit-scrollbar { display: none; }
.ra-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--bw-line);
  border-radius: 999px;
  background: #fff;
  color: var(--bw-ink);
  font: 500 15px/1.2 "Space Grotesk", system-ui, sans-serif;
  cursor: pointer;
}
.ra-chip:hover { border-color: var(--bw-green); }
.ra-chip:focus-visible { outline: 3px solid var(--bw-green); outline-offset: 2px; }
.ra-chip-time {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 600;
  color: var(--bw-green);
}
.ra-chip[aria-current="true"] {
  background: var(--bw-yellow);
  border-color: var(--bw-yellow);
  color: var(--bw-green-deep);
}
.ra-chip[aria-current="true"] .ra-chip-time { color: var(--bw-green-deep); }

/* Transcript panel: its own scroll. 70 % of the viewport, but never more than the
   space left under the player and chips (about 560 px), so a fixed-height iframe
   fits without scrolling inside. At least 420 px. */
.ra-panel {
  position: relative;
  min-height: 420px;
  max-height: max(420px, min(70vh, calc(100vh - 560px)));
  overflow-y: auto;
  padding: 20px 22px 6px;
  background: #fff;
  border: 1px solid var(--bw-line);
  border-radius: 12px;
  overscroll-behavior: contain;
}
.ra-panel:focus-visible { outline: 3px solid var(--bw-green); outline-offset: 2px; }

.ra-text > noscript { display: block; font-size: 16px; line-height: 1.6; }

.ra-chapter { margin: 0; }
.ra-chapter h3 {
  margin: 28px 0 10px;
  font-family: Fraunces, Georgia, serif;
  font-weight: 600;
  font-size: 22px;
  line-height: 1.25;
  color: var(--bw-green);
}
.ra-chapter:first-child h3 { margin-top: 0; }
.ra-ch-time {
  display: inline-block;
  margin-right: 8px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--bw-muted);
  vertical-align: 3px;
}

.ra-para {
  margin: 0 0 14px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--bw-ink);
}

/* Break (mid-roll and outro spot) reads as a distinct, smaller block. */
.ra-break {
  margin: 22px 0 8px;
  padding-top: 10px;
  border-top: 1px dashed var(--bw-line);
}
.ra-break-label {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bw-green);
}
.ra-para--spot { font-size: 15px; line-height: 1.55; }

/* Phrases. Spoken: normal. Current: bold with a soft yellow highlight. Upcoming: muted. */
.ra-phrase {
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  border-radius: 3px;
  transition: background-color 0.35s ease, color 0.35s ease;
  cursor: pointer;
}
.ra-phrase.is-upcoming { color: #6A7067; }
.ra-phrase.is-current {
  font-weight: 700;
  background-color: var(--bw-highlight);
  color: var(--bw-ink);
}
.ra-phrase:focus-visible { outline: 2px solid var(--bw-green); outline-offset: 2px; }

/* Static view (audio unavailable): plain readable text, no seek. */
.ra--static .ra-phrase { cursor: default; }

.ra-back {
  position: sticky;
  bottom: 10px;
  display: block;
  margin: 12px auto 10px;
  padding: 10px 18px;
  border: 0;
  border-radius: 999px;
  background: var(--bw-yellow);
  color: var(--bw-green-deep);
  font: 700 14px/1 "Space Grotesk", system-ui, sans-serif;
  box-shadow: 0 2px 10px rgba(18, 61, 24, 0.18);
  cursor: pointer;
}
.ra-back[hidden] { display: none; }
.ra-back:focus-visible { outline: 3px solid var(--bw-green); outline-offset: 2px; }

.ra-foot {
  margin: 14px 0 4px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
  color: var(--bw-muted);
}
.ra-foot a { color: var(--bw-green); }

@media (max-width: 480px) {
  .ra { padding: 12px 16px; }
  .ra-title { font-size: 20px; }
  .ra-art { flex-basis: 60px; width: 60px; height: 60px; }
  .ra-panel { padding: 16px 16px 6px; }
  .ra-chapter h3 { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .ra-phrase { transition: none; }
}