:root {
  color-scheme: light;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  background: #eef3f1;
  color: #16211f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(23, 86, 77, 0.12), transparent 38%),
    linear-gradient(315deg, rgba(222, 128, 74, 0.16), transparent 44%),
    #eef3f1;
}

.shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 32px;
}

.panel {
  width: min(1040px, 100%);
  padding: 24px;
  border: 1px solid rgba(28, 48, 44, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 24px 70px rgba(41, 57, 52, 0.16);
}

.title-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 6px;
  color: #66736f;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 5vw, 54px);
  font-weight: 800;
  letter-spacing: 0;
}

.video-stage {
  position: relative;
}

video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 6px;
  background: #101817;
  object-fit: contain;
}

.play-overlay {
  position: absolute;
  left: 50%;
  top: 50%;
  min-width: 132px;
  transform: translate(-50%, -50%);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
}

.play-overlay[hidden] {
  display: none;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

button,
.link-button {
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid #1f5f55;
  border-radius: 6px;
  background: #1f5f55;
  color: #fff;
  font: inherit;
  font-weight: 700;
  line-height: 42px;
  text-decoration: none;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.secondary {
  border-color: rgba(31, 95, 85, 0.28);
  background: #fff;
  color: #1f5f55;
}

.metric {
  align-items: center;
  display: inline-flex;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid rgba(31, 95, 85, 0.2);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.72);
  color: #40504c;
  font-size: 14px;
  font-weight: 700;
}

.badge {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 800;
}

.idle {
  background: #e5e9e7;
  color: #576560;
}

.connecting {
  background: #fff2d7;
  color: #8c5814;
}

.live {
  background: #dff4e8;
  color: #17613b;
}

.message {
  margin: 14px 0 0;
  color: #5f6c68;
  line-height: 1.6;
}

@media (max-width: 680px) {
  .shell {
    padding: 14px;
  }

  .panel {
    padding: 16px;
  }

  .title-row {
    align-items: stretch;
    flex-direction: column;
  }

  button,
  .link-button,
  .metric {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
}