:root{--bg: #0b0f17;--surface: #131824;--surface-2: #1a2130;--border: #26304a;--text: #e6ecf5;--muted: #8a95ab;--accent: #7c9cff;--up: #35d399;--down: #ff6b6b;--radius: 12px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--surface);border-bottom:1px solid var(--border)}.topbar .brand{font-weight:700;letter-spacing:.3px}.topbar nav a{color:var(--muted);text-decoration:none;margin-left:20px;font-size:14px}.topbar nav a.active{color:var(--text)}main{padding:24px;max-width:1200px;margin:0 auto}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:16px}.card h2{margin:0 0 12px;font-size:16px;letter-spacing:.3px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.kpi{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.kpi .item{flex:1 1 160px}.kpi .label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.kpi .value{font-size:22px;font-weight:700;margin-top:4px}.up{color:var(--up)}.down{color:var(--down)}.product-card{cursor:pointer;transition:transform .15s ease}.product-card:hover{transform:translateY(-2px);border-color:var(--accent)}.product-card .name{font-size:14px;color:var(--muted)}.product-card .price{font-size:26px;font-weight:700;margin:8px 0 6px}.product-card .meta{font-size:12px;color:var(--muted)}.chart-wrap{position:relative;height:320px}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:500;font-size:11px;text-transform:uppercase;letter-spacing:.5px}tr:hover td{background:var(--surface-2)}button,.btn{background:var(--accent);color:#0b0f17;border:0;border-radius:8px;padding:8px 14px;font-weight:600;font-size:13px;cursor:pointer}button.secondary{background:transparent;color:var(--text);border:1px solid var(--border)}button:hover{opacity:.9}input,select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 10px;font-size:13px}.range-toggle{display:flex;gap:6px;margin-bottom:12px}.range-toggle button{background:var(--surface-2);color:var(--muted)}.range-toggle button.active{background:var(--accent);color:#0b0f17}a{color:var(--accent)}