*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f5f6f8;--surface: #ffffff;--surface-hover: #f9fafb;--border: #e5e7eb;--text: #1e293b;--text-secondary: #64748b;--accent: #2563eb;--accent-light: #eff6ff;--tier-high: #059669;--tier-high-bg: #ecfdf5;--tier-low: #d97706;--tier-low-bg: #fffbeb;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--sidebar-width: 240px}body{font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}.app{display:flex;min-height:100vh}.main{flex:1;margin-left:var(--sidebar-width);padding:32px;max-width:1200px}.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;background:#1e293b;color:#e2e8f0;display:flex;flex-direction:column;z-index:10}.sidebar-brand{padding:24px 20px;border-bottom:1px solid rgba(255,255,255,.08)}.sidebar-brand h1{font-size:18px;font-weight:700;letter-spacing:-.02em}.sidebar-brand p{font-size:12px;color:#94a3b8;margin-top:2px}.sidebar-nav{padding:12px 8px;flex:1}.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:6px;color:#94a3b8;text-decoration:none;font-size:14px;font-weight:500;transition:background .15s,color .15s}.sidebar-nav a:hover{background:#ffffff0f;color:#e2e8f0}.sidebar-nav a.active{background:#2563eb26;color:#60a5fa}.sidebar-footer{padding:16px 20px;border-top:1px solid rgba(255,255,255,.08)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.card-header h2{font-size:14px;font-weight:600;color:var(--text)}.card-body{padding:20px}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:1fr 1fr}.tier-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}.tier-badge.high{background:var(--tier-high-bg);color:var(--tier-high)}.tier-badge.low{background:var(--tier-low-bg);color:var(--tier-low)}.page-header{margin-bottom:24px}.page-header h1{font-size:24px;font-weight:700;letter-spacing:-.02em}.page-header p{color:var(--text-secondary);font-size:14px;margin-top:4px}.label{font-size:12px;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.canvas-wrap{position:relative;width:100%;overflow:hidden;border-radius:var(--radius);background:#fafafa}.canvas-wrap canvas{display:block;width:100%}.static-fallback{padding:20px}.static-fallback table{width:100%;border-collapse:collapse;font-size:13px}.static-fallback th,.static-fallback td{text-align:left;padding:8px 12px;border-bottom:1px solid var(--border)}.static-fallback th{font-weight:600;color:var(--text-secondary);font-size:11px;text-transform:uppercase;letter-spacing:.05em}.editor-toolbar{display:flex;gap:4px;padding:8px 12px;border-bottom:1px solid var(--border);background:var(--bg)}.editor-toolbar button{padding:4px 10px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--text);font-size:13px;cursor:pointer;transition:background .1s}.editor-toolbar button:hover{background:var(--surface-hover)}.editor-content{min-height:200px;padding:16px;font-size:14px;line-height:1.7;outline:none}.editor-preview{padding:16px;font-size:14px;line-height:1.7;border-top:1px solid var(--border);background:var(--bg)}.editor-preview h2{font-size:18px;margin-bottom:8px}.editor-preview code{background:#e5e7eb;padding:1px 5px;border-radius:3px;font-size:13px}.editor-preview blockquote{border-left:3px solid var(--accent);padding-left:12px;color:var(--text-secondary);margin:8px 0}.editor-preview li{margin-left:20px}.editor-stats{padding:8px 16px;border-top:1px solid var(--border);display:flex;gap:16px;font-size:12px;color:var(--text-secondary)}.scene-container{height:400px;border-radius:var(--radius);overflow:hidden;background:#0f172a}.scene-static{height:400px;display:flex;align-items:center;justify-content:center;background:#f1f5f9;border-radius:var(--radius)}.device-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}.device-item{padding:12px;background:var(--bg);border-radius:6px}.device-item .value{font-size:20px;font-weight:700;color:var(--text)}.device-item .label{margin-top:2px}.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.metric-card{padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.metric-card .value{font-size:28px;font-weight:700;letter-spacing:-.02em}.metric-card .label{margin-top:4px}.metric-card .change{font-size:12px;font-weight:500;margin-top:8px}.metric-card .change.positive{color:var(--tier-high)}.metric-card .change.negative{color:#dc2626}.loading-badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.loading-badge.eager{background:#22c55e26;color:#16a34a}.loading-badge.lazy{background:#eab30826;color:#ca8a04}.loading-badge.viewport{background:#6366f126;color:#6366f1}.impact-table{width:100%;border-collapse:collapse;font-size:13px}.impact-table th,.impact-table td{padding:10px 16px;text-align:left;border-bottom:1px solid var(--border)}.impact-table th{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary)}.impact-summary{display:grid;grid-template-columns:1fr 1fr;gap:20px}.impact-stat{display:flex;flex-direction:column;gap:4px}.impact-value{font-size:28px;font-weight:700;color:var(--tier-high)}.impact-label{font-size:12px;color:var(--text-secondary)}