*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  margin: 0;
  min-height: 100%;
  height: 100%;
  font-family: system-ui, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
  background: #0f1114;
  color: #e8eaed;
}

.top {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid #2a2f36;
  background: #161a20;
}

.top h1 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 600;
}

.note {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  line-height: 1.45;
  color: #9aa0a6;
  max-width: 72ch;
}

.note code {
  font-size: 0.8em;
  color: #c4c7ce;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  align-items: center;
}

.row label {
  font-size: 0.9rem;
  color: #bdc1c6;
}

#pageSelect {
  flex: 1 1 240px;
  min-width: 0;
  padding: 0.45rem 0.6rem;
  border: 1px solid #3c424c;
  border-radius: 6px;
  background: #0f1114;
  color: inherit;
  font-size: 0.9rem;
}

button {
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  border: 1px solid #5f6368;
  background: #30343b;
  color: #e8eaed;
  font-size: 0.9rem;
  cursor: pointer;
}

button:hover {
  background: #3c4249;
}

button.small {
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
}

.split {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr minmax(280px, 360px);
  grid-template-rows: minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
}

@media (max-width: 900px) {
  .split {
    display: flex;
    flex-direction: column;
  }

  .frame-wrap {
    flex: 1 1 55%;
    min-height: 260px;
  }

  .panel {
    flex: 1 1 45%;
    min-height: 220px;
    height: auto;
    border-left: 0;
    border-top: 1px solid #2a2f36;
  }
}

.frame-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  background: #000;
}

#game {
  flex: 1 1 auto;
  width: 100%;
  min-height: 0;
  height: 100%;
  border: 0;
  display: block;
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  border-left: 1px solid #2a2f36;
  padding: 0.75rem 1rem 1.25rem;
  overflow: hidden;
  background: #12151a;
}

.hint {
  flex-shrink: 0;
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  color: #80868b;
}

#assetList {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.75rem;
  word-break: break-all;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

#assetList li {
  padding: 0.55rem 0;
  border-bottom: 1px solid #2a2f36;
  color: #bdc1c6;
}

#assetList .asset-row-link {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  width: 100%;
  min-width: 0;
  color: #8ab4f8;
  text-decoration: none;
}

#assetList .asset-row-link:hover {
  color: #a8c7fa;
}

#assetList .asset-row-link:hover .asset-text {
  text-decoration: underline;
}

.asset-preview {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border: 1px solid #3c424c;
  border-radius: 6px;
  background: #1b1f26;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  font-size: 0.95rem;
}

.asset-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.asset-thumb--video {
  pointer-events: none;
}

.asset-text {
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  text-align: left;
  padding-top: 0.1rem;
  line-height: 1.45;
}

#assetList li:last-child {
  border-bottom: 0;
}

#assetList li.asset-selected {
  background: #223047;
  outline: 1px solid #8ab4f8;
  border-radius: 6px;
}

.inspect-menu {
  position: fixed;
  z-index: 9999;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45);
}

.inspect-menu.hidden {
  display: none;
}

#inspectAssetBtn {
  white-space: nowrap;
  width: 100%;
  text-align: left;
}