:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f7f9fc;
  color: #1d2025;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #f7f9fc;
}

button { font: inherit; }

.board-shell {
  width: min(1600px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 28px clamp(20px, 4vw, 64px) 64px;
}

.board-header {
  padding: clamp(24px, 4vw, 48px);
  border-radius: 8px;
  background: #101828;
  color: #fff;
}

.board-brand,
.board-heading,
.board-live,
.board-summary,
.board-card-heading,
.board-time-heading {
  display: flex;
  align-items: center;
}

.board-brand {
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
  color: #afc8ff;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.board-brand-identity {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: 1.1rem;
  letter-spacing: 0;
}

.board-brand-identity > span {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: #3d7ef0;
}

.board-heading {
  justify-content: space-between;
  gap: 24px;
}

.board-heading p,
.board-heading h1 { margin: 0; }

.board-heading > div > p:first-child {
  margin-bottom: 8px;
  color: #afc8ff;
  font-weight: 800;
  text-transform: uppercase;
}

.board-heading h1 {
  max-width: 900px;
  font-size: clamp(2rem, 4.2vw, 3.9rem);
  line-height: 1.03;
}

.board-heading .board-section-name {
  margin-top: 18px;
  color: #fff;
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  font-weight: 800;
}

.board-heading .board-details {
  margin-top: 6px;
  color: #dce7ff;
  font-size: clamp(1rem, 2vw, 1.35rem);
}

.board-live {
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  max-width: 180px;
  gap: 7px;
  color: #dce7ff;
}

.board-live span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #45c978;
  box-shadow: 0 0 0 5px rgba(69, 201, 120, 0.18);
}

.board-live strong { color: #fff; }
.board-live time { width: 100%; text-align: right; font-size: 0.8rem; }

.board-summary {
  gap: 34px;
  padding: 18px 0;
  border-bottom: 1px solid #d9dee7;
}

.board-summary div { display: flex; align-items: baseline; gap: 8px; }
.board-summary strong { font-size: 1.8rem; }
.board-summary span { color: #5e6773; }
.board-summary button {
  min-height: 42px;
  margin-left: auto;
  padding: 8px 18px;
  border: 1px solid #aeb8c7;
  border-radius: 6px;
  background: #fff;
  color: #1d2025;
  cursor: pointer;
  font-weight: 750;
}

.board-status {
  padding: 48px 20px;
  color: #5e6773;
  text-align: center;
  font-size: 1.1rem;
}

.board-groups { display: grid; gap: 36px; margin-top: 30px; }
.board-time-heading { justify-content: space-between; margin-bottom: 14px; }
.board-time-heading h2 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.5rem); }
.board-time-heading span { color: #5e6773; font-weight: 700; }

.board-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
}

.board-card {
  min-width: 0;
  padding: 20px;
  border: 1px solid #d9dee7;
  border-left: 6px solid #3d7ef0;
  border-radius: 8px;
  background: #fff;
}

.board-card.checked-in { border-left-color: #19733e; }
.board-card-heading { justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.board-card-heading h3 { margin: 0; font-size: 1.35rem; }
.board-card-heading span {
  padding: 6px 9px;
  border-radius: 999px;
  background: #eaf1ff;
  color: #285dab;
  font-size: 0.76rem;
  font-weight: 800;
}
.checked-in .board-card-heading span { background: #e8f5ed; color: #19733e; }

.board-card p { overflow-wrap: anywhere; }
.board-label {
  margin: 16px 0 4px;
  color: #5e6773;
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}
.board-participant { margin: 0; font-size: 1.35rem; font-weight: 800; }
.board-mentor { margin: 0; font-size: 1.1rem; font-weight: 750; }
.board-expertise { margin: 6px 0 0; color: #5e6773; font-size: 0.88rem; line-height: 1.35; }

@media (max-width: 680px) {
  .board-shell { padding: 0 0 40px; }
  .board-header { border-radius: 0; }
  .board-heading { flex-direction: column; align-items: flex-start; }
  .board-heading h1 { max-width: none; font-size: 2rem; }
  .board-live { justify-content: flex-start; max-width: none; }
  .board-live time { width: auto; text-align: left; }
  .board-summary, .board-groups { margin-right: 18px; margin-left: 18px; }
  .board-summary { gap: 16px; }
  .board-summary strong { font-size: 1.4rem; }
  .board-summary span { font-size: 0.78rem; }
  .board-cards { grid-template-columns: 1fr; }
}