/* ---------- Talk landing page ---------- */

    .talk-intro .talk-kicker {
      font-size: var(--fs-sm);
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: rgba(0,0,0,0.50);
      margin-bottom: var(--sp-1);
    }

    .talk-intro h1 {
      margin-top: 0;
      margin-bottom: var(--sp-2);
    }

    .talk-intro .talk-subtitle {
      font-family: "Doves Headline", Georgia, serif;
      font-size: var(--fs-md);
      line-height: 1.5;
      padding-left: var(--sp-2);
      border-left: 2px solid rgba(0,0,0,0.18);
      color: rgba(0,0,0,0.82);
      margin: var(--sp-2) 0 var(--sp-3);
    }

    .talk-intro .talk-actions {
      display: flex;
      flex-wrap: wrap;
      gap: var(--sp-1) var(--sp-2);
      align-items: center;
    }

    .talk-intro .talk-actions .btn {
      margin-top: var(--sp-2);
    }

    .talk-meta {
      font-size: var(--fs-sm);
      color: rgba(0,0,0,0.55);
      margin-top: var(--sp-3);
    }

    /* Aphoristic moments */
    .talk-pullquote {
      font-family: Georgia, "Iowan Old Style", serif;
      font-style: italic;
      font-size: 1.08rem;
      color: rgba(0,0,0,0.74);
      padding: var(--sp-1) 0 var(--sp-1) var(--sp-2);
      border-left: 2px solid rgba(0,0,0,0.22);
      margin: var(--sp-2) 0;
    }

    /* The one timestamp the talk turns on */
    .talk-timestamp {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
                   "Liberation Mono", "Courier New", monospace;
      font-size: var(--fs-lg);
      letter-spacing: 0.04em;
      text-align: center;
      padding: var(--sp-3) var(--sp-2);
      margin: var(--sp-3) 0 var(--sp-2);
      background: rgba(0,0,0,0.035);
      border-radius: var(--pt-radius);
      overflow-x: auto;
    }

    /* Date ladders: year on the left, meaning on the right */
    .talk-dates {
      list-style: none;
      padding-left: 0;
      margin: var(--sp-2) 0 0;
    }

    .talk-dates li {
      display: grid;
      grid-template-columns: 7.5rem 1fr;
      gap: var(--sp-2);
      padding: var(--sp-1) 0;
      border-bottom: 1px solid rgba(0,0,0,0.07);
    }

    .talk-dates li:last-child {
      border-bottom: none;
    }

    .talk-dates .when {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
                   "Liberation Mono", "Courier New", monospace;
      font-size: var(--fs-sm);
      color: rgba(0,0,0,0.62);
      padding-top: 3px;
    }

    .talk-dates .what strong {
      font-weight: 600;
    }

    @media (max-width: 540px) {
      .talk-dates li {
        grid-template-columns: 1fr;
        gap: 2px;
      }
    }

    /* Canary grid: 2 × 2, one probe cell */
    .canary-grid {
      display: grid;
      grid-template-columns: minmax(7rem, auto) 1fr 1fr;
      gap: 6px;
      margin: var(--sp-3) 0 var(--sp-2);
      font-size: var(--fs-sm);
    }

    .canary-grid > div {
      padding: var(--sp-1);
      border-radius: var(--pt-radius);
      background: rgba(0,0,0,0.035);
      line-height: 1.4;
    }

    .canary-grid .hdr {
      background: transparent;
      font-weight: 600;
      color: rgba(0,0,0,0.70);
    }

    .canary-grid .probe {
      background: rgba(138,90,62,0.12);
      border: 1px solid rgba(138,90,62,0.40);
      font-weight: 600;
    }

    .canary-note {
      font-size: var(--fs-sm);
      color: rgba(0,0,0,0.60);
      font-style: italic;
    }

    /* Closing card — green accent, rhymes with the XSTP.epoch coda */
    .talk-coda {
      border-left: 3px solid rgba(76,125,74,0.35);
      background:
        linear-gradient(to bottom, rgba(255,255,255,1), rgba(255,255,255,0.98)),
        radial-gradient(circle at top left, rgba(76,125,74,0.04), transparent 50%);
      margin-top: var(--sp-5);
    }

    .talk-coda .talk-kicker {
      font-size: var(--fs-sm);
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: rgba(76,125,74,0.82);
      margin-bottom: var(--sp-1);
    }

    .talk-coda h2 {
      margin-top: 0;
    }

    .talk-sources li {
      margin-bottom: var(--sp-1);
      font-size: 0.92rem;
      line-height: 1.5;
    }

    /* ---------- Deep-link anchors ---------- */
    .talk-anchor {
      margin-left: 0.35em;
      font-weight: 400;
      font-style: normal;
      text-decoration: none;
      color: rgba(0,0,0,0.20);
      opacity: 0;
      transition: opacity 0.15s ease, color 0.15s ease;
    }
    h2:hover .talk-anchor,
    .talk-pullquote:hover .talk-anchor { opacity: 1; }
    .talk-anchor:hover,
    .talk-anchor:focus { color: rgba(0,0,0,0.50); opacity: 1; }
    @media (hover: none) {
      .talk-anchor { opacity: 0.4; }
    }
    :target { scroll-margin-top: var(--sp-4, 2rem); }