/* ndproj Web UI — dark, clean, readable */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0b0e14;
  --panel: #12161f;
  --card: #181d29;
  --line: #262d3d;
  --text: #dfe5f0;
  --muted: #8b93a7;
  --accent: #4da3ff;
  --accent2: #7ee0a3;
}

html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  overflow: hidden;
}

#app { display: flex; height: 100vh; }

/* ---------------- 面板 ---------------- */
#panel {
  width: 320px;
  min-width: 320px;
  background: var(--panel);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  padding: 0 0 24px;
  scrollbar-width: thin;
  scrollbar-color: #333b4d transparent;
}

#brand { padding: 18px 18px 14px; border-bottom: 1px solid var(--line); }
#brand h1 { font-size: 20px; letter-spacing: 0.5px; }
#brand h1 span { color: var(--accent); font-size: 13px; font-weight: 400; margin-left: 6px; }
#brand p { color: var(--muted); font-size: 12px; margin-top: 4px; }

.card { padding: 14px 18px; border-bottom: 1px solid var(--line); }
.card h2 {
  font-size: 13px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.card h2 small { color: var(--muted); text-transform: none; letter-spacing: 0; }

.field { display: block; margin-bottom: 10px; }
.field > span { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; margin-bottom: 4px; }
.field b { color: var(--text); font-weight: 600; }
#mRange { color: var(--muted); font-weight: 400; font-size: 11px; }

select, input[type="number"] {
  width: 100%;
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 7px 9px;
  font-size: 13px;
  outline: none;
}
select:focus, input[type="number"]:focus { border-color: var(--accent); }

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--line);
  outline: none;
  margin: 8px 0 2px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid #0b0e14;
}

.hint { color: var(--muted); font-size: 11px; margin-bottom: 8px; }

/* 矩阵编辑器（弹性宽度） */
#matrixWrap { overflow-x: auto; margin-bottom: 10px; }
#matrixGrid { border-collapse: collapse; width: 100%; table-layout: fixed; }
#matrixGrid th, #matrixGrid td { padding: 2px; }
#matrixGrid th { color: var(--muted); font-size: 11px; padding-right: 6px; font-weight: 400; width: 20px; }
#matrixGrid td { width: auto; }
#matrixGrid input[type="number"] {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: 5px 2px;
  font-size: 12px;
  text-align: center;
  border-radius: 4px;
}
#matrixGrid input[type="number"]:hover { border-color: var(--accent2); }
#matrixGrid input[type="number"]:focus { border-color: var(--accent); }

/* 向量编辑器（direction / eye）弹性宽度 */
#directionWrap, #eyeWrap {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}
#directionWrap input[type="number"], #eyeWrap input[type="number"] {
  flex: 1 1 0;
  min-width: 42px;
  max-width: 80px;
  box-sizing: border-box;
  padding: 5px 2px;
  font-size: 12px;
  text-align: center;
  border-radius: 4px;
}

.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.btn {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: all .15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); color: #06121f; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover { background: #6db6ff; color: #06121f; }

.checks { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; margin-bottom: 12px; }
.checks label { color: var(--muted); font-size: 12px; display: flex; align-items: center; gap: 6px; cursor: pointer; }
.checks input { accent-color: var(--accent); }

/* 统计 */
#stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.stat span { display: block; color: var(--muted); font-size: 11px; }
.stat b { font-size: 15px; color: var(--accent2); font-variant-numeric: tabular-nums; }

/* ---------------- 面板拖拽手柄 ---------------- */
#panelHandle {
  width: 5px;
  cursor: col-resize;
  background: transparent;
  flex-shrink: 0;
  transition: background .15s;
  z-index: 5;
}
#panelHandle:hover, #panelHandle.dragging { background: var(--accent); }

/* ---------------- 视口 ---------------- */
#viewport { flex: 1; position: relative; background: radial-gradient(1200px 800px at 70% 30%, #141a26 0%, #0b0e14 60%); }
#gl { display: block; width: 100%; height: 100%; }

#hud {
  position: absolute; top: 14px; left: 18px;
  display: flex; gap: 10px; align-items: center;
  font-size: 13px; pointer-events: none;
}
#hud span {
  background: rgba(12, 16, 24, .72);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 4px 14px;
  backdrop-filter: blur(4px);
}
#hud #hudDim { color: var(--accent); font-weight: 600; }
#hud #hudMethod { color: var(--muted); }
#hud #hudVer {
  color: var(--accent2);
  font-size: 11px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

#error {
  position: absolute; left: 50%; top: 18px; transform: translateX(-50%);
  background: #3a1418; border: 1px solid #7a2f38; color: #ffb3ba;
  border-radius: 8px; padding: 8px 16px; font-size: 13px;
  max-width: 70%; z-index: 10;
}

/* 提示条（非错误，如自动切换投影方式） */
#notice {
  position: absolute; left: 50%; top: 18px; transform: translateX(-50%);
  background: #2a2d1a; border: 1px solid #8a7a2f; color: #ffe9a8;
  border-radius: 8px; padding: 8px 16px; font-size: 13px;
  max-width: 70%; z-index: 10;
}

/* 顶点分析面板 */
#pointInfo {
  position: absolute; right: 16px; bottom: 16px;
  width: 300px; max-width: 70%;
  background: rgba(15, 20, 30, .92);
  border: 1px solid var(--line);
  border-radius: 10px;
  backdrop-filter: blur(6px);
  z-index: 10;
  font-size: 12px;
}
#pointInfo .pi-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--accent);
}
#pointInfo .pi-head b { font-size: 13px; }
#pointInfo .pi-head .btn { padding: 2px 8px; }
#pointInfo #piBody { padding: 10px 12px; }
#pointInfo .pi-row { display: flex; gap: 6px; margin-bottom: 5px; }
#pointInfo .pi-row span { color: var(--muted); min-width: 60px; flex-shrink: 0; }
#pointInfo .pi-row code {
  color: var(--accent2);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  word-break: break-all;
}
#pointInfo .pi-actions { display: flex; gap: 8px; margin-top: 8px; }
#pointInfo .pi-actions .btn { flex: 1; }

.hidden { display: none !important; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #333b4d; border-radius: 4px; }