/* 세미나 시청 페이지 */
.swatch-body {
  --sw-navy: #0b1f3a;
  --sw-blue: #1d4ed8;
  --sw-bg: #f2f5fa;
  --sw-card: #ffffff;
  --sw-text: #142033;
  --sw-muted: #5b6b82;
  --sw-line: #d9e2ef;
  margin: 0;
  background: var(--sw-bg);
  color: var(--sw-text);
  font-family: Pretendard, "Noto Sans KR", sans-serif;
}

.swatch-wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.swatch-top {
  background: linear-gradient(135deg, #071526 0%, #0b1f3a 50%, #163a73 100%);
  color: #fff;
  padding: 36px 0 28px;
}

.swatch-top__row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

.swatch-kicker {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #9eb6ff;
}

.swatch-top h1 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3.4vw, 36px);
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.swatch-lead {
  margin: 0;
  max-width: 46ch;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.55;
}

.swatch-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 10px;
  background: #fff;
  color: var(--sw-navy);
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.swatch-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.7fr);
  gap: 16px;
  margin-top: 18px;
  margin-bottom: 18px;
}

.swatch-player,
.swatch-list,
.swatch-info article {
  background: var(--sw-card);
  border: 1px solid var(--sw-line);
  border-radius: 16px;
}

.swatch-player {
  overflow: hidden;
}

.swatch-player__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #0a1424;
}

.swatch-player__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.swatch-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 8px;
  text-align: center;
  color: #d7e2f5;
  padding: 24px;
}

.swatch-placeholder p {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
}

.swatch-placeholder span {
  color: #9aadc8;
  font-size: 14px;
}

.swatch-now {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--sw-line);
}

.swatch-now__label {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--sw-muted);
}

.swatch-now h2 {
  margin: 0;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.swatch-list {
  padding: 16px;
  align-self: start;
  position: sticky;
  top: 16px;
}

.swatch-list h2 {
  margin: 0 0 12px;
  font-size: 15px;
}

.swatch-sessions {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.swatch-session {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  padding: 12px 12px;
  border: 1px solid var(--sw-line);
  border-radius: 12px;
  background: #fff;
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

.swatch-session:hover,
.swatch-session.is-on {
  border-color: #9bbcff;
  background: #eef4ff;
}

.swatch-session__no {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #e8eef8;
  font-size: 12px;
  font-weight: 800;
  color: var(--sw-blue);
}

.swatch-session__title {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
}

.swatch-session__meta {
  font-size: 11px;
  color: var(--sw-muted);
  white-space: nowrap;
}

.swatch-session.is-ready .swatch-session__meta {
  color: var(--sw-blue);
  font-weight: 700;
}

.swatch-list__apply {
  display: inline-flex;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 800;
  color: var(--sw-blue);
  text-decoration: none;
}

.swatch-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding-bottom: 40px;
}

.swatch-info article {
  padding: 18px 18px 16px;
}

.swatch-info h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

.swatch-info ul {
  margin: 0;
  padding-left: 18px;
  color: var(--sw-muted);
  line-height: 1.6;
}

.swatch-help {
  margin: 14px 0 0;
  font-weight: 800;
  color: var(--sw-navy);
}

@media (max-width: 900px) {
  .swatch-top__row,
  .swatch-stage,
  .swatch-info {
    grid-template-columns: 1fr;
    display: grid;
  }
  .swatch-top__row {
    align-items: start;
  }
  .swatch-list {
    position: static;
  }
}