* { box-sizing: border-box; margin: 0; }
:root {
  --bg: #14171c; --bg2: #1c2027; --bg3: #242a33; --line: #313947;
  --fg: #d7dde6; --dim: #8b95a3; --acc: #4da3ff; --ok: #4ade80; --warn: #fbbf24;
}
html, body { height: 100%; }
body {
  display: grid; height: 100vh; overflow: hidden;
  grid-template-columns: 250px 1fr 400px;
  grid-template-rows: 48px 1fr 28px;
  grid-template-areas: "hdr hdr hdr" "side view panel" "ftr ftr ftr";
  background: var(--bg); color: var(--fg);
  font: 13px/1.45 system-ui, sans-serif;
}
header {
  grid-area: hdr; display: flex; align-items: center; gap: 16px;
  padding: 0 14px; background: var(--bg2); border-bottom: 1px solid var(--line);
}
header h1 { font-size: 18px; letter-spacing: .5px; }
header h1 span { color: var(--acc); }
.header-info { margin-left: auto; display: flex; gap: 8px; }
.badge {
  padding: 3px 10px; border-radius: 20px; font-size: 11px;
  background: var(--bg3); border: 1px solid var(--line); color: var(--ok);
}
.badge.off { color: var(--dim); }
.badge.warn { color: var(--warn); }

#sidebar { grid-area: side; overflow-y: auto; background: var(--bg2); border-right: 1px solid var(--line); padding: 10px; }
#sidebar section { margin-bottom: 18px; }
#sidebar h2 { font-size: 11px; text-transform: uppercase; color: var(--dim); margin-bottom: 8px; letter-spacing: 1px; }
#viewport { grid-area: view; position: relative; overflow: hidden; }
#viewport canvas { display: block; }
#panel { grid-area: panel; display: flex; flex-direction: column; background: var(--bg2); border-left: 1px solid var(--line); min-height: 0; }
footer {
  grid-area: ftr; display: flex; gap: 24px; align-items: center; padding: 0 14px;
  background: var(--bg2); border-top: 1px solid var(--line); font-size: 11px; color: var(--dim);
}
#st-msg { color: var(--warn); }

button {
  display: block; width: 100%; margin-bottom: 6px; padding: 7px 10px;
  background: var(--bg3); color: var(--fg); border: 1px solid var(--line);
  border-radius: 6px; cursor: pointer; font: inherit;
}
button:hover { border-color: var(--acc); }
button.primary { background: #1d4ed8; border-color: #2563eb; }
button.primary:hover { background: #2563eb; }
.btnrow { display: flex; gap: 6px; padding: 8px 0; }
.btnrow button { margin: 0; }
select, input[type=text] {
  width: 100%; padding: 6px 8px; background: var(--bg3); color: var(--fg);
  border: 1px solid var(--line); border-radius: 6px; font: inherit;
}
header h1 small { font-size: 11px; color: var(--dim); font-weight: normal; margin-left: 6px; }

#proppanel {
  position: absolute; top: 12px; right: 12px; z-index: 10; width: 230px;
  background: color-mix(in srgb, var(--bg2) 92%, transparent);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px;
  backdrop-filter: blur(4px); font-size: 12px;
}
#proppanel.hidden { display: none; }
.pp-head { display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px; font-weight: 600; }
.pp-head button { width: auto; margin: 0; padding: 2px 8px; }
.pp-row { display: grid; grid-template-columns: 80px 1fr; gap: 8px; align-items: center;
  margin-bottom: 6px; color: var(--dim); }
.pp-row .mono { font-variant-numeric: tabular-nums; color: var(--fg); }
.pp-row input[type=number] { width: 100%; padding: 4px 6px; background: var(--bg3);
  color: var(--fg); border: 1px solid var(--line); border-radius: 4px; }
.pp-row input[type=range] { width: 100%; accent-color: var(--acc); }
.pp-row input[type=color] { width: 100%; height: 24px; border: none; background: none; padding: 0; }
.pp-btns { display: flex; gap: 4px; margin-top: 8px; }
.pp-btns button { font-size: 11px; padding: 5px 4px; margin: 0; }
button.danger { border-color: #7f1d1d; }
button.danger:hover { border-color: #ef4444; }

.filedrop {
  display: block; padding: 18px 8px; text-align: center; color: var(--dim);
  border: 1.5px dashed var(--line); border-radius: 8px; cursor: pointer; font-size: 12px;
}
.filedrop.over { border-color: var(--acc); color: var(--acc); }
.filedrop input { display: none; }
.row { display: flex; gap: 6px; align-items: center; margin-top: 8px; font-size: 12px; color: var(--dim); }
.row.big { font-size: 13px; color: var(--fg); padding: 8px 0; }

#jog .axis { display: grid; grid-template-columns: 26px 1fr 44px; gap: 6px; align-items: center; margin-bottom: 4px; }
#jog input[type=range] { width: 100%; accent-color: var(--acc); }
#jog .val { text-align: right; font-variant-numeric: tabular-nums; color: var(--dim); font-size: 11px; }
.tcp { margin-top: 8px; font-size: 11px; color: var(--dim); font-variant-numeric: tabular-nums; }

#tabs { display: flex; border-bottom: 1px solid var(--line); }
#tabs button { flex: 1; margin: 0; border: none; border-radius: 0; background: transparent; padding: 10px; color: var(--dim); }
#tabs button.active { color: var(--fg); box-shadow: inset 0 -2px 0 var(--acc); }
.tab { display: none; flex: 1; min-height: 0; flex-direction: column; padding: 10px; overflow-y: auto; }
.tab.active { display: flex; }
.hint { color: var(--dim); font-size: 12px; margin-bottom: 8px; }

textarea {
  width: 100%; flex: 1; min-height: 140px; resize: none;
  background: var(--bg); color: var(--fg); border: 1px solid var(--line); border-radius: 6px;
  padding: 8px; font: 12px/1.5 ui-monospace, "Cascadia Code", Consolas, monospace;
  tab-size: 2; white-space: pre;
}
#ai-prompt { min-height: 90px; flex: none; white-space: pre-wrap; }
pre {
  flex: 1; min-height: 60px; overflow: auto; background: var(--bg); border: 1px solid var(--line);
  border-radius: 6px; padding: 8px; font: 11px/1.5 ui-monospace, Consolas, monospace;
  color: var(--dim); white-space: pre-wrap;
}
#log .err { color: #f87171; }
#sil-table { width: 100%; border-collapse: collapse; font-size: 12px; }
#sil-table th, #sil-table td { text-align: left; padding: 4px 8px; border-bottom: 1px solid var(--line); }
#sil-table td:last-child { font-variant-numeric: tabular-nums; color: var(--acc); }