:root{--bg-dark: #0b0f17;--panel-bg: #131b26;--accent: #38bdf8;--accent-hover: #0284c7;--text-main: #e2e8f0;--text-muted: #94a3b8;--border: #1e293b}body{margin:0;padding:0;background-color:var(--bg-dark);color:var(--text-main);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden}#app{display:flex;flex-direction:column;height:100vh}header{height:48px;background:var(--panel-bg);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 16px;user-select:none}.viewport-container{flex:1;position:relative;overflow:hidden;background:#05070a}canvas#gl-canvas{width:100%;height:100%;display:block}.bottom-bar{background:var(--panel-bg);border-top:1px solid var(--border);padding:10px 16px;display:flex;flex-direction:column;gap:8px}.scrubber-row{display:flex;align-items:center;gap:12px}input[type=range]{accent-color:var(--accent);flex:1;cursor:pointer}.controls-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.btn-group{display:flex;align-items:center;gap:4px}.btn{background:#1e293b;color:var(--text-main);border:1px solid var(--border);padding:4px 10px;border-radius:4px;cursor:pointer;font-size:13px;transition:background .15s;display:inline-flex;align-items:center;justify-content:center;user-select:none}.btn:hover{background:#334155}.btn.active{background:var(--accent);color:#000;font-weight:600}.select,select{background:#1e293b;color:var(--text-main);border:1px solid var(--border);padding:4px 8px;border-radius:4px;font-size:12px;cursor:pointer}.select:focus,select:focus,input:focus{outline:1px solid var(--accent)}.sidebar{position:absolute;top:60px;right:16px;width:260px;background:#131b26eb;backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:8px;padding:12px;display:flex;flex-direction:column;gap:10px;font-size:12px;z-index:10}.cursor-overlay{position:absolute;bottom:8px;left:12px;background:#000000b3;padding:3px 8px;border-radius:4px;font-size:11px;font-family:monospace;color:var(--text-muted);pointer-events:none}.histogram-container{display:flex;flex-direction:column;gap:4px}canvas#hist-canvas{width:100%;height:64px;display:block;border-radius:4px;background:#0b0f17;border:1px solid var(--border)}.modal-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.footer{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:4px 16px;background:#080c13;border-top:1px solid var(--border);font-size:11px;color:var(--text-muted);user-select:none}.footer-version{color:var(--accent);font-weight:600}.footer-commit{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:11px;color:#64748b}