*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f5f7fa;--card:#fff;--primary:#2563eb;--accent:#3b82f6;--purple:#7c3aed;--text:#1a1d2e;--muted:#6b7280;--border:#e4e8f0;--shadow:0 4px 24px rgba(37,99,235,.09);--radius:14px}body{font-family:Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}.badge-green{background:#f0fdf4;color:#16a34a}.badge-blue{background:#eff6ff;color:#2563eb}.badge-amber{background:#fffbeb;color:#d97706}.badge-red{background:#fef2f2;color:#dc2626}.badge-gray{background:#f3f4f6;color:#6b7280}.badge-purple{background:#faf5ff;color:#7c3aed}.trend-up{color:#16a34a;font-weight:600}.trend-dn{color:#dc2626;font-weight:600}.session-status{display:inline-flex;align-items:center;gap:5px}.status-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}.dot-green{background:#16a34a}.dot-amber{background:#d97706}.dot-red{background:#dc2626}.dot-gray{background:#9ca3af}