.app {
  display: flex;
  height: 100%;
}

.sidebar {
  width: 340px;
  flex-shrink: 0;
  overflow-y: auto;
  padding: 20px;
  background: #1e2128;
  border-right: 1px solid #2c313a;
}

.sidebar h1 {
  margin: 0 0 4px;
  font-size: 20px;
  color: #fff;
}

.tagline {
  margin: 0 0 10px;
  color: #9aa1ac;
  font-size: 13px;
}

.tagline a {
  color: #7fb0e0;
}

.engine-status {
  margin: 0 0 16px;
  font-size: 12px;
}

.engine-status.loading {
  color: #ecc477;
}

.engine-status.ready {
  color: #8fd7ab;
}

.engine-status.error {
  color: #f2a3a3;
}

.sidebar section {
  margin-bottom: 22px;
}

.sidebar h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #7f8794;
  margin: 0 0 8px;
}

.load-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.load-buttons > button {
  width: 100%;
}

.button-row {
  display: flex;
  gap: 8px;
}

.button-row button {
  flex: 1;
}

button {
  font: inherit;
  padding: 7px 12px;
  border-radius: 6px;
  border: 1px solid #3a4150;
  background: #2a2f39;
  color: #e2e5ea;
  cursor: pointer;
}

button:hover {
  background: #333947;
}

button.primary {
  margin-top: 10px;
  width: 100%;
  background: #2f6fb3;
  border-color: #2f6fb3;
  color: #fff;
  font-weight: 600;
}

button.primary:hover {
  background: #3a80c9;
}

select {
  font: inherit;
  width: 100%;
  padding: 7px 8px;
  border-radius: 6px;
  border: 1px solid #3a4150;
  background: #2a2f39;
  color: #e2e5ea;
}

.error {
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(220, 70, 70, 0.12);
  border: 1px solid rgba(220, 70, 70, 0.45);
  color: #f2a3a3;
  font-size: 13px;
}

.warning {
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(230, 170, 50, 0.1);
  border: 1px solid rgba(230, 170, 50, 0.45);
  color: #ecc477;
  font-size: 13px;
}

.ok {
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(80, 190, 120, 0.1);
  border: 1px solid rgba(80, 190, 120, 0.4);
  color: #8fd7ab;
  font-size: 13px;
}

.mesh-info .source {
  color: #7f8794;
  font-size: 12px;
  margin-bottom: 4px;
  overflow-wrap: anywhere;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.chip {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid #3a4150;
  color: #6b7280;
  text-decoration: line-through;
}

.chip.on {
  color: #a8d5b8;
  border-color: rgba(80, 190, 120, 0.5);
  text-decoration: none;
}

.format-blurb {
  margin: 8px 0 0;
  color: #9aa1ac;
  font-size: 13px;
}

.format-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.format-table th,
.format-table td {
  text-align: left;
  padding: 4px 6px;
  border-bottom: 1px solid #2c313a;
}

.format-table th {
  color: #7f8794;
  font-weight: 500;
}

.format-table tbody tr {
  cursor: pointer;
}

.format-table tbody tr:hover {
  background: #262b34;
}

.format-table tbody tr.selected {
  background: rgba(47, 111, 179, 0.18);
}

.format-table tbody tr.selected td:first-child {
  color: #9cc4ea;
}

.format-table th:not(:first-child),
.format-table td:not(:first-child) {
  text-align: center;
}

.ext {
  color: #7f8794;
  font-size: 12px;
}

.format-table td.size {
  color: #9aa1ac;
  white-space: nowrap;
}

button.subtle {
  margin-top: 8px;
  padding: 3px 8px;
  font-size: 12px;
  color: #9aa1ac;
  background: transparent;
  border-color: #2c313a;
}

button.subtle:hover {
  background: #2a2f39;
}

button.subtle:disabled {
  opacity: 0.5;
  cursor: default;
}

input.share-url {
  font: inherit;
  font-size: 12px;
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin-top: 8px;
  padding: 5px 8px;
  border-radius: 6px;
  border: 1px solid #3a4150;
  background: #2a2f39;
  color: #e2e5ea;
}

.footnote {
  margin: 8px 0 0;
  color: #6b7280;
  font-size: 12px;
}

.viewport {
  flex: 1;
  min-width: 0;
  position: relative;
}

.view-toolbar {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1;
  display: flex;
  gap: 0;
  border: 1px solid #3a4150;
  border-radius: 6px;
  overflow: hidden;
  background: rgba(30, 33, 40, 0.85);
}

.view-toolbar button {
  border: none;
  border-radius: 0;
  background: transparent;
  padding: 5px 10px;
  font-size: 12px;
  color: #9aa1ac;
}

.view-toolbar button + button {
  border-left: 1px solid #3a4150;
}

/* separates the anaglyph toggle from the mutually-exclusive mode group */
.view-toolbar button.sep {
  border-left: 3px double #3a4150;
}

.view-toolbar button:hover {
  background: #2a2f39;
  color: #e2e5ea;
}

.view-toolbar button.active {
  background: rgba(47, 111, 179, 0.35);
  color: #d9e8f7;
}

.empty-state {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #6b7280;
}

.empty-state p {
  margin: 4px 0;
}