:root{color-scheme:light;--color-bg-page:#eef1f4;--color-bg-surface:#fff;--color-bg-muted:#f8fafc;--color-border:#e2e8f0;--color-border-strong:#cbd5e1;--color-text-primary:#1e293b;--color-text-secondary:#64748b;--color-text-muted:#94a3b8;--color-accent:#18a058;--color-placeholder-gradient:linear-gradient(135deg,#e2e8f0,#f1f5f9);--radius-md:10px;--shadow-sm:0 1px 2px rgba(15,23,42,.06);--shadow-md:0 4px 12px rgba(15,23,42,.08)}[data-theme=dark]{color-scheme:dark;--color-bg-page:#101014;--color-bg-surface:#18181c;--color-bg-muted:#262629;--color-border:#3f3f46;--color-border-strong:#52525b;--color-text-primary:#f4f4f5;--color-text-secondary:#a1a1aa;--color-text-muted:#71717a;--color-accent:#63e2b7;--color-placeholder-gradient:linear-gradient(135deg,#3f3f46,#27272a);--shadow-sm:0 1px 2px rgba(0,0,0,.3);--shadow-md:0 4px 12px rgba(0,0,0,.4)}body{background:var(--color-bg-page);color:var(--color-text-primary);font-family:system-ui,-apple-system,sans-serif;margin:0}.page-container{margin:0 auto;max-width:1200px;padding:16px}.site-layout{min-height:100vh}.site-content{padding:0}.app-header{background:var(--color-bg-surface)!important;border-bottom:1px solid var(--color-border);padding:12px 16px}.app-header a{color:var(--color-text-primary);text-decoration:none}.surface-panel{background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.section-heading{color:var(--color-text-primary);font-size:18px;font-weight:600;margin:24px 0 16px}.section-heading--accent{border-left:3px solid var(--color-accent);padding-left:12px}.page-title{color:var(--color-text-primary);font-size:22px;font-weight:600;margin:0 0 16px}.catalog-toolbar{align-items:center;display:flex;gap:10px;padding:14px}.catalog-toolbar__search{flex:1;min-width:0}.catalog-toolbar__submit{flex-shrink:0}.listing-list-panel{display:flex;flex-direction:column;gap:12px;padding:12px}.category-grid{margin-bottom:24px}