:root{--bg:#f2f0e8;--bg-accent:#ebe6d8;--card:#ffffff;--card-muted:#faf8f1;--text:#1f1f1f;--muted:#8d8d98;--line:#e3e0d7;--lime:#dfff00;--green:#22c55e;--orange:#f59e0b;--red:#ef4444;--blue:#3b82f6;--shadow:0 18px 40px rgba(31,31,31,0.08);--radius-xl:28px;--radius-lg:22px;--radius-md:16px}*{box-sizing:border-box}body,html{margin:0;min-height:100%}body{background:radial-gradient(circle at top left,rgba(223,255,0,.28),transparent 22%),linear-gradient(180deg,var(--bg) 0,#f7f4ec 100%);color:var(--text);font-family:Avenir Next,Trebuchet MS,Gill Sans,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;padding:24px}.app-frame{max-width:1600px;margin:0 auto;display:grid;grid-gap:20px;gap:20px}.topbar{display:grid;grid-template-columns:1.3fr 1fr;grid-gap:18px;gap:18px;align-items:stretch}.brand-card,.metric-card,.panel,.toolbar-card,.user-card{background:rgba(255,255,255,.92);border:1px solid rgba(227,224,215,.95);border-radius:var(--radius-xl);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.brand-card{padding:24px 26px;background:linear-gradient(135deg,rgba(223,255,0,.88),rgba(223,255,0,.45)),var(--card)}.brand-kicker{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:rgba(31,31,31,.72)}.brand-title{margin:10px 0 8px;font-size:clamp(28px,3vw,44px);line-height:.95}.brand-subtitle{margin:0;color:rgba(31,31,31,.76);max-width:44rem}.user-card{padding:22px 24px;display:grid;grid-gap:14px;gap:14px;align-content:space-between}.stack{display:grid;grid-gap:16px;gap:16px}.panel{padding:22px}.panel-header{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:18px}.panel-title{margin:0;font-size:28px;line-height:1}.panel-subtitle{margin:8px 0 0;color:var(--muted)}.toolbar-card{padding:18px 20px}.toolbar-grid{display:flex;gap:12px;flex-wrap:wrap}.button{min-height:54px;padding:14px 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rgba(191,224,0,.22)}.selection-title{margin:0;font-size:22px}.selection-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:14px}.split-view{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(340px,.9fr);grid-gap:18px;gap:18px}.item-list{display:grid;grid-gap:12px;gap:12px}.item-card{border:1px solid var(--line);border-radius:var(--radius-lg);padding:16px;background:linear-gradient(180deg,var(--card) 0,var(--card-muted) 100%)}.item-topline{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:10px}.item-name{margin:0;font-size:22px}.qty-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:10px;gap:10px;margin-bottom:12px}.qty-box{border-radius:16px;background:white;border:1px solid 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