:root{--red:#d71920;--dark:#111;--soft:#f5f5f5;--line:#e6e6e6;--text:#202020;--muted:#6b7280;--green:#16803c}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:#f2f3f5;color:var(--text)}.app-shell{max-width:720px;margin:0 auto;min-height:100vh;padding-bottom:96px}.topbar{display:flex;align-items:center;gap:12px;background:linear-gradient(135deg,#111,#2b2b2b);color:#fff;padding:16px;border-bottom:4px solid var(--red);position:sticky;top:0;z-index:5}.brand-mark{width:48px;height:48px;border-radius:14px;background:var(--red);display:grid;place-items:center;font-weight:900;letter-spacing:-1px}.topbar h1{font-size:20px;line-height:1.1;margin:0}.topbar p{margin:3px 0 0;color:#ddd;font-size:12px}.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:10px;background:#fff;position:sticky;top:84px;z-index:4;border-bottom:1px solid var(--line)}.tab{border:0;border-radius:12px;padding:12px;font-weight:800;background:#eee;color:#333}.tab.active{background:var(--red);color:white}.panel{display:none;padding:12px}.panel.active{display:block}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;margin-bottom:12px;box-shadow:0 4px 12px rgba(0,0,0,.04)}label{display:block;font-weight:700;font-size:13px;color:#333;margin-bottom:8px}input{width:100%;border:1px solid #ddd;border-radius:12px;padding:13px;font-size:16px;background:#fff}.big-input{font-size:18px;padding:16px;border:2px solid #ddd}.big-input:focus,input:focus{outline:0;border-color:var(--red);box-shadow:0 0 0 3px rgba(215,25,32,.12)}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:10px}.section-head h2,h2{font-size:18px;margin:0 0 10px}.ghost{background:#f2f2f2;border:0;border-radius:10px;padding:9px 12px;font-weight:800}.danger{color:var(--red)}.primary{background:var(--red);color:white;border:0;border-radius:12px;padding:14px;font-size:16px;font-weight:900}.full{width:100%;margin-top:10px}.result-list{margin-top:10px;display:grid;gap:8px}.result-card{border:1px solid var(--line);border-radius:14px;padding:12px;display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.result-card strong{font-size:16px}.result-card span{display:block;color:var(--muted);font-size:13px;margin-top:3px}.result-card button{background:var(--red);color:white;border:0;border-radius:11px;padding:10px 14px;font-weight:900}.items-list,.saved-list,.master-list{display:grid;gap:8px}.empty{color:var(--muted);font-size:14px;padding:14px;text-align:center}.item-row,.saved-row,.master-row{border:1px solid var(--line);border-radius:14px;padding:10px;background:#fff}.item-top,.master-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.item-title{font-weight:900}.item-sub{font-size:13px;color:var(--muted);margin-top:3px}.qty-controls{display:flex;align-items:center;gap:6px;margin-top:9px}.qty-controls button,.delete-btn{border:0;border-radius:9px;padding:8px 11px;font-weight:900}.qty-controls button{background:#eee}.delete-btn{background:#ffe6e6;color:var(--red)}.rate-input,.qty-input{max-width:90px;padding:9px;font-size:15px}.bottom-bar{position:fixed;left:50%;bottom:0;transform:translateX(-50%);width:100%;max-width:720px;background:#111;color:#fff;border-top:4px solid var(--red);display:grid;grid-template-columns:1.15fr repeat(4,.75fr);gap:6px;padding:10px;z-index:10}.bottom-bar button{border:0;border-radius:12px;background:var(--red);color:white;font-weight:900;font-size:13px}.total-box span{display:block;color:#ddd;font-size:12px}.total-box strong{font-size:20px}.muted{color:var(--muted);font-size:13px;margin-top:-4px}@media(max-width:430px){.tabs{top:84px}.bottom-bar{grid-template-columns:1fr repeat(2,.75fr);grid-auto-rows:42px}.total-box{grid-row:span 2}.grid2{grid-template-columns:1fr}.topbar h1{font-size:18px}}