* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; width: 100%; height: 100%; background: #0b0e14; color: #e5e9f0; font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; overflow: hidden; }
#app { display: flex; flex-direction: column; height: 100vh; }
#topbar { display: flex; align-items: center; justify-content: space-between; padding: 10px 18px; background: linear-gradient(180deg, #171b26, #12151e); border-bottom: 1px solid #262b38; z-index: 5; flex-shrink: 0; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: baseline; gap: 10px; font-size: 20px; font-weight: 700; }
.brand .tagline { font-size: 12px; font-weight: 400; color: #8a91a3; }
.top-stats { display: flex; gap: 22px; flex-wrap: wrap; }
.top-stats .stat { display: flex; flex-direction: column; align-items: center; min-width: 66px; }
.top-stats label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; color: #7d8496; }
.top-stats span { font-size: 17px; font-weight: 700; color: #7dd3fc; font-variant-numeric: tabular-nums; }
#main { position: relative; flex: 1; display: flex; overflow: hidden; }
#worldCanvas { flex: 1; display: block; width: 100%; height: 100%; min-width: 0; min-height: 0; background: #bfe3ff; cursor: grab; }
#worldCanvas:active { cursor: grabbing; }
#minimapWrap { position: absolute; right: 328px; bottom: 16px; border-radius: 12px; overflow: hidden; box-shadow: 0 6px 18px rgba(0,0,0,0.45); border: 1px solid rgba(255,255,255,0.12); }
#minimapCanvas { display: block; }
.camera-reset { position: absolute; left: 16px; bottom: 16px; z-index: 4; width: auto; flex: none; }
.hint { position: absolute; left: 16px; top: 12px; font-size: 12px; color: rgba(20,30,45,0.75); background: rgba(255,255,255,0.7); padding: 5px 10px; border-radius: 8px; pointer-events: none; }
#sidebar { width: 312px; flex: 0 0 312px; background: #12151e; border-left: 1px solid #262b38; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 14px; }
.panel { background: #171b26; border: 1px solid #262b38; border-radius: 12px; padding: 14px; }
.panel h2 { margin: 0 0 10px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: #9aa2b8; }
.btn-row { display: flex; gap: 8px; margin-bottom: 8px; }
button { flex: 1; background: #232838; color: #e5e9f0; border: 1px solid #33394d; border-radius: 8px; padding: 9px 10px; font-size: 13px; font-weight: 600; cursor: pointer; transition: background 0.15s ease, transform 0.05s ease; }
button:hover { background: #2c3345; }
button:active { transform: scale(0.97); }
button.danger { background: #3a1f22; border-color: #63292e; color: #ff9a9a; }
button.danger:hover { background: #4a2226; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; font-size: 12px; color: #9aa2b8; }
.two { display: flex; gap: 10px; }
.two .field { flex: 1; }
.field input[type="number"] { background: #0d1017; border: 1px solid #33394d; color: #e5e9f0; border-radius: 8px; padding: 7px 9px; font-size: 14px; width: 100%; }
.speed-row { display: flex; gap: 6px; }
.speed-btn { flex: 1; padding: 7px 0; font-size: 12px; }
.speed-btn.active { background: #2563eb; border-color: #3b76f0; }
.speed-btn.turbo.active { background: #dc2626; border-color: #ef4444; }
.checkbox-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 6px; font-size: 13px; }
.checkbox-list label { display: flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.checkbox-list input { accent-color: #2563eb; width: 15px; height: 15px; }
#carInfoPanel h3 { margin: 0 0 8px; font-size: 15px; color: #7dd3fc; letter-spacing: 0.03em; }
.stat-row { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px solid #1e2330; font-size: 13px; }
.stat-row span { color: #9aa2b8; }
.stat-row b { color: #e5e9f0; font-variant-numeric: tabular-nums; }
.muted { color: #6b7288; font-size: 13px; margin: 0; }
#nnCanvas, #chartCanvas { width: 100%; height: auto; background: #0d1017; border-radius: 8px; border: 1px solid #262b38; display: block; }
.legend { font-size: 11px; color: #7d8496; margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 3px; margin: 0 4px 2px 8px; }
#sidebar::-webkit-scrollbar { width: 8px; }
#sidebar::-webkit-scrollbar-thumb { background: #2c3345; border-radius: 8px; }
@media (max-width: 900px) { #minimapWrap { right: 16px; } #sidebar { width: 260px; flex-basis: 260px; } }