:root {
  --bg: #0d1018;
  --panel: #161b27;
  --panel-2: #1d2433;
  --line: #2a3344;
  --text: #dfe6f0;
  --muted: #8b97ab;
  --accent: #49b3ff;
  --accent-2: #10d080;
  --danger: #ff5d6c;
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.brand {
  font-weight: 700;
  letter-spacing: 0.3px;
}
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.status {
  margin-left: auto;
  color: var(--muted);
  font-size: 12px;
  max-width: 40ch;
}

.errors {
  background: #3a1620;
  color: var(--danger);
  padding: 8px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  height: calc(100% - 53px);
}
.controls {
  overflow-y: auto;
  padding: 12px;
  background: var(--panel);
  border-right: 1px solid var(--line);
}
.stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
  gap: 10px;
  overflow: auto;
}
#view {
  max-width: 100%;
  max-height: 80vh;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #000;
}
.hint {
  color: var(--muted);
  font-size: 12px;
  max-width: 70ch;
  text-align: center;
}

.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
}
.btn:hover {
  border-color: var(--accent);
}
.btn.primary {
  background: var(--accent);
  color: #04121f;
  border-color: var(--accent);
  font-weight: 600;
}
.split-ctl {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}

/* Editing A/B segmented control */
.seg {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}
.seg-label {
  color: var(--muted);
}
.seg-btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  padding: 5px 12px;
  cursor: pointer;
  font-weight: 600;
}
.seg-btn:first-of-type {
  border-radius: 6px 0 0 6px;
}
.seg-btn:last-of-type {
  border-radius: 0 6px 6px 0;
  border-left: none;
}
.seg-btn.active {
  background: var(--accent);
  color: #04121f;
  border-color: var(--accent);
}
.cmp-ctl {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.select-sm {
  background: #0e1320;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 4px 6px;
}

/* Canvas corner labels for compare modes */
.view-wrap {
  position: relative;
  display: inline-block;
  line-height: 0;
}
.view-label {
  position: absolute;
  top: 10px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #04121f;
  background: rgba(73, 179, 255, 0.92);
  line-height: 1.2;
  pointer-events: none;
}
.view-label.left {
  left: 10px;
}
.view-label.right {
  right: 10px;
  background: rgba(16, 208, 128, 0.92);
}

/* Setup bar at the top of the control panel */
.setup-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.setup-title {
  font-weight: 700;
}
.setup-actions {
  display: flex;
  gap: 6px;
}

.panel-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.obs-help {
  font-size: 12px;
  color: var(--muted);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 12px;
  line-height: 1.5;
}
.obs-help a {
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}
.obs-help a:hover {
  text-decoration: underline;
}
.panel-row .select {
  flex: 1;
}

.empty {
  color: var(--muted);
  padding: 16px;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: 8px;
}

.card {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
}
.card.disabled {
  opacity: 0.6;
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: #20283a;
}
.card-head .enable {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}
.group-tag {
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 999px;
}
.card-tools {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.mini {
  background: #131826;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 3px 8px;
  cursor: pointer;
  font-size: 12px;
}
.mini:hover {
  border-color: var(--accent);
}
.mini.export {
  margin-left: auto;
  color: var(--accent-2);
  border-color: var(--accent-2);
}

.card-body {
  padding: 10px 12px;
}
.param {
  margin-bottom: 10px;
}
.param label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}
.param-inline {
  display: flex;
  align-items: center;
  gap: 8px;
}
.param-inline label {
  margin: 0;
}
.row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.range {
  flex: 1;
  accent-color: var(--accent);
}
.num {
  width: 72px;
  background: #0e1320;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 4px 6px;
}
.select {
  width: 100%;
  background: #0e1320;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 5px 6px;
}
.lut-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px dashed var(--line);
  padding-top: 10px;
  margin-top: 4px;
}
.lut-status {
  font-size: 12px;
  color: var(--muted);
}
input[type='color'] {
  width: 44px;
  height: 28px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #0e1320;
}