:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f3f5f7;
  color: #16212b;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: #f3f5f7; }
main { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0; }
.site-header { border-bottom: 1px solid #dce2e7; background: #fff; }
.site-header-inner { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: 1rem 0; font-weight: 700; }
.card { background: #fff; border: 1px solid #d9e0e6; border-radius: 14px; box-shadow: 0 8px 28px rgba(25, 43, 57, .06); padding: 1.5rem; }
.join-card { max-width: 620px; margin: 8vh auto; }
.session-grid { display: grid; grid-template-columns: minmax(300px, 380px) 1fr; gap: 1.25rem; align-items: start; }
h1 { margin: .2rem 0 1rem; font-size: clamp(1.8rem, 3vw, 2.5rem); }
h2 { margin: 0 0 .75rem; font-size: 1.2rem; }
h3 { margin: 1.25rem 0 .6rem; font-size: 1rem; }
.eyebrow { margin: 0; color: #526575; text-transform: uppercase; letter-spacing: .1em; font-size: .75rem; font-weight: 800; }
.status-text { font-size: 1.05rem; line-height: 1.5; }
.privacy-note { color: #526575; line-height: 1.5; }
.panel { border-top: 1px solid #e2e7eb; margin-top: 1rem; padding-top: 1rem; }
.button-row { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1rem; }
.button, .text-button { border: 0; border-radius: 8px; cursor: pointer; font: inherit; font-weight: 700; }
.button { background: #174d6f; color: #fff; padding: .75rem 1rem; text-decoration: none; display: inline-block; }
.button.secondary { background: #e5edf3; color: #173247; }
.button.danger { background: #8a2e2e; }
.button.small { padding: .45rem .7rem; font-size: .88rem; }
.button:disabled { opacity: .5; cursor: not-allowed; }
.text-button { background: transparent; color: #2f5b77; padding: .7rem 0; }
.check-row { display: flex; gap: .6rem; align-items: center; margin: 1rem 0; }
.requirements { padding-left: 1.25rem; color: #405463; }
.lobby-list { display: grid; gap: .55rem; }
.lobby-row { display: flex; justify-content: space-between; align-items: center; border: 1px solid #e1e7eb; border-radius: 8px; padding: .7rem; }
.media-card { min-height: 520px; background: #101820; border-color: #101820; }
.media-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: .75rem; min-height: 470px; align-items: center; }
.media-placeholder { color: #c7d3dc; text-align: center; padding: 2rem; }
.video-track { width: 100%; max-height: 70vh; object-fit: cover; border-radius: 10px; background: #000; }
.audio-track { display: none; }
.error-text { background: #fff0f0; border: 1px solid #dfabab; border-radius: 8px; color: #7d1d1d; padding: .8rem; margin-top: 1rem; }
.hidden { display: none !important; }
@media (max-width: 820px) {
  .session-grid { grid-template-columns: 1fr; }
  .media-card { min-height: 340px; }
  .media-grid { min-height: 300px; }
}
.acknowledgment-list,
.acknowledgment-row {
  display: grid;
  gap: .75rem;
}
.acknowledgment-row {
  padding: 1rem;
  border: 1px solid #d9e0e6;
  border-radius: 12px;
}
.acknowledgment-row p { margin: 0; }