:root{--bg:#f6f8fb;--panel:#fff;--panel-soft:#f9fafc;--border:#e3e8ef;--text:#172033;--muted:#667085;--brand:#6d5dfc;--brand-soft:#ebe9ff;--ok:#17a673;--warning:#f0a202;--danger:#e5484d;--sidebar:#fff;--shadow:0 12px 30px #17203314}*{box-sizing:border-box}html,body{background:var(--bg);min-height:100%;color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.app-shell{grid-template-columns:264px 1fr;min-height:100vh;display:grid}.sidebar{background:var(--sidebar);border-right:1px solid var(--border);height:100vh;padding:22px 18px;position:sticky;top:0}.brand{align-items:center;gap:12px;margin-bottom:28px;display:flex}.brand-logo{background:linear-gradient(135deg, var(--brand), #9b8cff);color:#fff;border-radius:14px;justify-content:center;align-items:center;width:42px;height:42px;font-weight:800;display:flex}.brand-title{font-weight:800;line-height:1.1}.brand-subtitle{color:var(--muted);margin-top:3px;font-size:12px}.nav{flex-direction:column;gap:6px;display:flex}.nav-item{color:#344054;border-radius:12px;align-items:center;gap:10px;padding:11px 12px;display:flex}.nav-item:hover,.nav-item.active{background:var(--brand-soft);color:var(--brand)}.nav-icon{text-align:center;width:22px}.main{min-width:0;padding:28px 34px 48px;overflow-x:hidden}.page-header{justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:24px;display:flex}.page-title{letter-spacing:-.03em;margin:0;font-size:28px}.page-description{color:var(--muted);max-width:760px;margin:7px 0 0}.actions{gap:10px;display:flex}.button{border:1px solid var(--border);color:var(--text);cursor:pointer;background:#fff;border-radius:12px;padding:10px 14px;box-shadow:0 3px 10px #1720330a}.button.primary{background:var(--brand);color:#fff;border-color:var(--brand)}.grid{gap:16px;display:grid}.grid.cards{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:18px;padding:18px}.card-title{color:var(--muted);margin:0 0 4px;font-size:13px}.card-value{letter-spacing:-.03em;font-size:28px;font-weight:800}.card-foot{color:var(--muted);margin-top:6px;font-size:13px}.table-wrap{border:1px solid var(--border);box-shadow:var(--shadow);background:#fff;border-radius:18px;overflow:hidden}table{border-collapse:collapse;width:100%}th,td{border-bottom:1px solid var(--border);text-align:left;vertical-align:middle;padding:14px 16px;font-size:14px}th{background:var(--panel-soft);color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px;font-weight:700}tr:last-child td{border-bottom:0}.status{border-radius:999px;align-items:center;gap:6px;padding:5px 9px;font-size:12px;font-weight:700;display:inline-flex}.status.ok{color:var(--ok);background:#eaf8f2}.status.warn{color:#9a6700;background:#fff4d6}.status.error{color:var(--danger);background:#ffecec}.icons{align-items:center;gap:7px;display:flex}.platform-icon{border:1px solid var(--border);color:#98a2b3;background:#f5f7fb;border-radius:10px;justify-content:center;align-items:center;width:28px;height:28px;font-size:12px;font-weight:800;display:flex}.platform-icon.active{color:#fff;background:var(--brand);border-color:var(--brand)}.platform-icon.warn{color:#9a6700;background:#fff4d6;border-color:#f7d27b}.platform-icon.error{color:#fff;background:var(--danger);border-color:var(--danger)}.input-small{border:1px solid var(--border);background:#fff;border-radius:10px;width:86px;padding:8px 10px}@media (max-width:1100px){.app-shell{grid-template-columns:1fr}.sidebar{height:auto;position:relative}.grid.cards{grid-template-columns:repeat(2,1fr)}}.action-with-message{align-items:center;gap:.75rem;display:flex}.action-message{color:#64748b;max-width:360px;font-size:.8rem}.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:24px 0 28px;display:grid}.stat-card{background:#fff;border:1px solid #e5e7eb;border-radius:18px;flex-direction:column;gap:8px;padding:18px 20px;display:flex;box-shadow:0 10px 30px #0f172a0a}.stat-label{color:#64748b;text-transform:uppercase;letter-spacing:.06em;font-size:12px;font-weight:700}.stat-card strong{color:#111827;font-size:28px;font-weight:800;line-height:1}@media (max-width:1100px){.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:640px){.stats-grid{grid-template-columns:1fr}}.inventory-filters{flex-wrap:wrap;align-items:center;gap:12px;padding:0 0 20px;display:flex}.filter-input,.filter-select{color:#111827;background:#fff;border:1px solid #e5e7eb;border-radius:12px;outline:none;height:42px;padding:0 14px;font-size:14px}.filter-input{flex:1;min-width:280px}.filter-input:focus,.filter-select:focus{border-color:#7c5cff;box-shadow:0 0 0 3px #7c5cff1f}.platform-icons{flex-wrap:nowrap;align-items:center;gap:6px;display:flex}.platform-logo{color:#64748b;opacity:.42;filter:grayscale();background:#fff;border:1px solid #e5e7eb;border-radius:999px;justify-content:center;align-items:center;min-width:34px;height:24px;padding:0 8px;font-size:11px;font-weight:800;line-height:1;transition:opacity .15s,filter .15s,border-color .15s,box-shadow .15s,transform .15s;display:inline-flex}.platform-logo.active{opacity:1;filter:none;border-color:#7c5cff40;box-shadow:0 8px 20px #0f172a0f}.platform-logo.inactive,.platform-logo.missing{background:#f8fafc}.platform-logo.warning{opacity:1;filter:none;background:#fffbeb;border-color:#f59e0b}.platform-logo.error{opacity:1;filter:none;background:#fef2f2;border-color:#ef4444}.platform-logo:hover{transform:translateY(-1px)}.platform-logo-text{margin-left:5px}.shopify-bag{color:#fff;background:#95bf47;border-radius:4px 4px 5px 5px;justify-content:center;align-items:center;width:15px;height:16px;font-size:9px;font-weight:900;display:inline-flex;position:relative}.shopify-bag:before{content:"";border:2px solid #95bf47;border-bottom:0;border-radius:8px 8px 0 0;width:7px;height:6px;position:absolute;top:-4px;left:4px}.ebay-wordmark{letter-spacing:-.08em;font-size:13px;font-weight:900}.ebay-e{color:#e53238}.ebay-b{color:#0064d2}.ebay-a{color:#f5af02}.ebay-y{color:#86b817}.etsy-wordmark{color:#f16521;font-family:Georgia,serif;font-size:13px;font-weight:800}.amazon-wordmark{color:#111827;letter-spacing:-.04em;font-size:11px;font-weight:900}.amazon-smile{border-bottom:2px solid #f90;border-radius:0 0 18px 18px;width:18px;height:7px;margin-left:2px;display:inline-block;transform:translateY(-1px)}.stat-card-link{cursor:pointer;text-decoration:none}.stat-card-link:hover{border-color:#7c5cff59;transform:translateY(-1px);box-shadow:0 14px 34px #0f172a14}.stat-card-link:active{transform:translateY(0)}.inventory-sync-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.inventory-sync-actions .action-with-message{align-items:center;gap:8px;display:flex}.button.small{border-radius:10px;min-height:30px;padding:7px 10px;font-size:12px}.muted{color:var(--muted)}.diagnostic-list{color:var(--text);margin:0;padding-left:20px}.diagnostic-list li{margin:8px 0}.detail-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.table-link{color:var(--brand);font-weight:700}.table-link:hover{text-decoration:underline}@media (max-width:980px){.detail-grid{grid-template-columns:1fr}}.detail-list{gap:12px;margin:0;display:grid}.detail-list div{gap:3px;display:grid}.detail-list dt{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:12px;font-weight:800}.detail-list dd{margin:0;font-weight:700}.panel,.table-wrapper{min-width:0}.table-wrapper{overscroll-behavior-inline:contain;width:100%;overflow-x:auto}.code-block{border:1px solid var(--border);color:#e5e7eb;white-space:pre-wrap;background:#0f172a;border-radius:14px;margin:0;padding:16px;font-size:12px;line-height:1.5;overflow:auto}.rule-editor{gap:22px;display:grid}.rule-toggle-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.rule-toggle{border:1px solid var(--border);background:var(--panel-soft);border-radius:14px;align-items:flex-start;gap:10px;padding:14px;display:flex}.rule-toggle input{margin-top:3px}.rule-toggle span{gap:4px;display:grid}.rule-toggle small,.rule-number-grid small{color:var(--muted);line-height:1.4}.rule-number-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.rule-number-grid label{gap:8px;font-weight:700;display:grid}.rule-editor-actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}@media (max-width:900px){.rule-toggle-grid,.rule-number-grid{grid-template-columns:1fr}}