.brief-header {
  padding-block: 2rem 2.4rem;
  border-bottom: var(--rule);
  margin-bottom: 2.4rem;
}

.brief-header .kicker {
  font-family: var(--mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--saffron);
  margin-bottom: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
}

.brief-header .kicker .sep { color: var(--text-dim); }

.brief-header h1 {
  font-family: var(--serif);
  font-size: 2.4rem;
  line-height: 1.1;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 0.6rem;
  color: var(--text);
}

.brief-header .subtitle {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.4;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
  max-width: 60ch;
}

.brief-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem 1.8rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  border-top: var(--rule);
  padding-top: 1.2rem;
}

.brief-meta dt {
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.62rem;
  margin-bottom: 0.2rem;
}

.brief-meta dd { color: var(--text); }
.brief-meta dd a { color: var(--text); border-bottom: 1px solid var(--saffron-dim); text-decoration: none; }
.brief-meta dd a:hover { border-color: var(--saffron); }

/* sticky audio player */

.player-wrap {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  padding-block: 1.2rem;
  border-bottom: var(--rule);
  margin-bottom: 2.4rem;
}

.player {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1.1rem 1.3rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.2rem;
  align-items: center;
  position: relative;
}

.play-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--saffron);
  background: var(--saffron);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 160ms ease;
  flex-shrink: 0;
}

.play-btn:hover { transform: scale(1.05); }
.play-btn .icon-pause { display: none; }
.player.playing .play-btn .icon-play { display: none; }
.player.playing .play-btn .icon-pause { display: block; }

.player-body { display: flex; flex-direction: column; gap: 0.5rem; min-width: 0; }

.player-title {
  font-family: var(--serif);
  font-size: 0.96rem;
  color: var(--text);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player-progress {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.scrubber {
  flex: 1;
  height: 3px;
  background: var(--border);
  position: relative;
  cursor: pointer;
}

.scrubber-fill {
  position: absolute;
  inset: 0;
  width: 0%;
  background: var(--saffron);
  transition: width 120ms linear;
}

.player-controls { display: flex; gap: 0.8rem; flex-shrink: 0; }

.speed-btn, .download-btn {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  padding: 0.35rem 0.6rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 200ms, border-color 200ms;
}

.speed-btn:hover, .download-btn:hover { color: var(--saffron); border-color: var(--saffron-dim); }

/* brief body */

.brief-body { font-family: var(--serif); }

.brief-body h2 {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: -0.012em;
  margin: 3rem 0 1rem;
  color: var(--text);
}

.brief-body p {
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 1.2rem;
}

.brief-body p.cybin-take {
  font-style: italic;
  color: var(--text-muted);
  border-left: 2px solid var(--saffron);
  padding-left: 1rem;
}

.brief-body a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--saffron-dim);
  transition: border-color 200ms, color 200ms;
}

.brief-body a:hover { color: var(--saffron); border-color: var(--saffron); }

.brief-body .citation {
  font-family: var(--mono);
  font-size: 0.66em;
  vertical-align: super;
  color: var(--saffron);
  text-decoration: none;
  border: 0;
  padding: 0 0.1em;
}

.brief-body .citation::before { content: "["; }
.brief-body .citation::after { content: "]"; }

/* sources list */

.sources-section {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: var(--rule);
}

.sources-section h2 {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--saffron);
  margin-bottom: 1.4rem;
}

.sources-section ol { list-style: none; padding: 0; counter-reset: src; margin: 0; }

.sources-section li {
  font-family: var(--serif);
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-muted);
  padding: 0.7rem 0 0.7rem 2.6rem;
  border-top: var(--rule);
  position: relative;
  counter-increment: src;
  scroll-margin-top: 80px;
}

.sources-section li::before {
  content: counter(src);
  position: absolute;
  left: 0;
  top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--saffron);
  width: 2rem;
  text-align: right;
}

.sources-section li:target { background: rgba(200, 100, 46, 0.06); }
.sources-section a { color: var(--text); border-bottom: 1px solid var(--saffron-dim); text-decoration: none; word-break: break-word; }
.sources-section a:hover { color: var(--saffron); border-color: var(--saffron); }

/* prev/next */

.brief-nav {
  margin-top: 3rem;
  padding: 2rem 0;
  border-top: var(--rule);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.brief-nav a {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.brief-nav a .label { color: var(--saffron); text-transform: uppercase; font-size: 0.66rem; letter-spacing: 0.1em; }
.brief-nav a .title { font-family: var(--serif); font-size: 1.05rem; color: var(--text); line-height: 1.3; }
.brief-nav a:hover .title { color: var(--saffron); }

.brief-nav .next { text-align: right; }

@media (max-width: 880px) {
  .player { grid-template-columns: auto 1fr; }
  .player-controls { grid-column: 1 / -1; justify-content: flex-end; }
  .brief-header h1 { font-size: 1.8rem; }
  .brief-nav { grid-template-columns: 1fr; }
}