.speaker-group + .speaker-group { margin-top: 4rem; }
.speaker-group-heading { display: flex; align-items: center; gap: 1.25rem; margin-bottom: 1.75rem; }
.speaker-group-heading::after { content: ""; flex: 1; height: 1px; background: var(--color-border); }
.speaker-card { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.speaker-identity { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 1.5rem; padding: 1.75rem 1.75rem 0; align-items: start; }
.speaker-photo { width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: center 20%; border-radius: 1rem; background: var(--color-primary-soft); }
.speaker-card .speaker-name { font-size: clamp(1.4rem, 2vw, 1.8rem); margin: 0 0 0.65rem; }
.speaker-content { display: flex; flex-direction: column; flex: 1; padding: 1.75rem; }
.speaker-talk-label { display: block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-primary); margin-bottom: 0.65rem; }
.speaker-talk { font-size: clamp(1.5rem, 2.2vw, 1.9rem); line-height: 1.3; margin-bottom: 1.1rem; }
.speaker-excerpt { font-size: 0.95rem; line-height: 1.75; }
.speaker-bio { margin-top: auto; }
.speaker-bio summary { list-style: none; }
.speaker-bio summary::-webkit-details-marker { display: none; }
.speaker-full-bio { padding-top: 1rem; }
.bio-close:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 5px; border-radius: 0.25rem; }
.bio-dialog-open { overflow: hidden; }
/* The shared hero-copy-shell owns the glass background, border, shadow and blur. */
.bio-dialog { width: min(900px, calc(100% - 2rem)); max-width: 900px; max-height: calc(100dvh - 3rem); color: #fff; overflow: hidden; }
.bio-dialog[open] { display: flex; flex-direction: column; gap: 1rem; }
.bio-dialog::backdrop { background: rgba(15, 34, 39, 0.65); }
.bio-layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 2rem; align-items: start; overflow-y: auto; min-height: 0; overscroll-behavior: contain; scrollbar-gutter: stable; padding: 0.25rem; }
.bio-layout:focus-visible { outline: 2px solid rgba(255, 255, 255, 0.7); outline-offset: 2px; }
.bio-name { color: #fff; font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 0.75rem; }
.bio-text { line-height: 1.85; }
.bio-text p:last-child { margin-bottom: 0; }
.bio-close { display: block; flex: 0 0 44px; align-self: flex-end; width: 44px; height: 44px; border: 1px solid rgba(255, 255, 255, 0.6); border-radius: 50%; color: white; background: rgba(27, 41, 47, 0.18); font-size: 1.8rem; line-height: 1; cursor: pointer; }
@media (max-width: 575.98px) {
  .speaker-identity { grid-template-columns: 105px minmax(0, 1fr); gap: 1rem; padding: 1.25rem 1.25rem 0; }
  .speaker-content { padding: 1.25rem; }
  .speaker-card .speaker-name { font-size: 1.35rem; }
  .bio-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .bio-portrait { width: 150px; }
}