* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  background: #000;
  overflow: hidden;
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

#screen {
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-columns: 70fr 30fr;
  background: #000;
  position: relative;
}

.zone {
  position: relative;
  overflow: hidden;
  background: #030712;
}

.left-zone {
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.right-zone {
  background: #07101f;
}

.media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
  display: block;
}

.media.contain {
  object-fit: contain;
}

.empty {
  width: 100%;
  height: 100%;
  display: grid;
  place-content: center;
  text-align: center;
  color: #fff;
  gap: 12px;
  padding: 40px;
}

.empty strong {
  font-size: 58px;
  letter-spacing: -0.05em;
}

.empty span {
  font-size: 24px;
  color: rgba(255,255,255,0.72);
}

.empty.small strong {
  font-size: 34px;
}

.empty.small span {
  font-size: 18px;
}

#statusPill {
  position: fixed;
  left: 18px;
  bottom: 18px;
  z-index: 20;
  color: rgba(255,255,255,0.82);
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 13px;
  backdrop-filter: blur(10px);
}

#debugPanel {
  position: fixed;
  right: 20px;
  top: 20px;
  width: 410px;
  max-width: calc(100vw - 40px);
  background: rgba(15, 23, 42, 0.96);
  color: #fff;
  z-index: 50;
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.48);
  border: 1px solid rgba(255,255,255,0.14);
}

.debug-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.debug-head h2 {
  margin: 0;
  font-size: 20px;
}

.debug-head span {
  background: #0352fb;
  color: #fff;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 900;
}

#debugPanel dl {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px;
  margin: 0 0 18px;
}

#debugPanel dt {
  color: #93c5fd;
  font-weight: 800;
}

#debugPanel dd {
  margin: 0;
  word-break: break-all;
  color: #e5e7eb;
}

.debug-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.debug-actions button {
  border: 0;
  border-radius: 14px;
  padding: 13px;
  font-weight: 900;
  background: #0352fb;
  color: #fff;
}

.debug-actions button:nth-child(2) {
  background: #475569;
}

.debug-actions button:last-child {
  background: #111827;
  border: 1px solid rgba(255,255,255,0.15);
}

.fade-in {
  animation: fadeIn 0.35s ease both;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}