:root{--nav:#101923;--nav2:#172433;--gold:#c89b4a;--gold2:#e8c982;--bg:#f4f7fb;--card:#fff;--text:#172033;--muted:#6c788b;--line:#dfe5ec;--green:#169c5b;--red:#dc4141;--blue:#1769e0;--amber:#d89718;--shadow:0 10px 30px rgba(20,34,54,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.app-shell{min-height:100vh}.sidebar{position:fixed;left:0;top:0;bottom:0;width:245px;background:linear-gradient(180deg,var(--nav),var(--nav2));color:#fff;display:flex;flex-direction:column;z-index:20}.brand{padding:22px 18px;border-bottom:1px solid rgba(255,255,255,.08);display:flex;align-items:center;gap:10px}.brand img{width:72px;height:58px;object-fit:contain}.brand strong{display:block;color:var(--gold2);letter-spacing:1px}.brand small{display:block;color:#c9d0d8;margin-top:3px}.sidebar nav{padding:14px 10px;display:grid;gap:5px;overflow:auto}.sidebar nav a{padding:11px 13px;border-radius:10px;color:#e8edf2;display:flex;gap:10px;align-items:center}.sidebar nav a:hover{background:rgba(200,155,74,.18);color:#fff}.sidebar-user{margin-top:auto;padding:16px;border-top:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:space-between}.sidebar-user small{display:block;color:#aeb9c5;margin-top:3px}.sidebar-user a{color:var(--gold2);font-size:13px}.main{margin-left:245px;min-height:100vh}.main.full{margin-left:0}.topbar{background:#fff;padding:18px 28px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.topbar h1{font-size:24px;margin:0}.topbar p{margin:4px 0 0;color:var(--muted);font-size:13px}.content{padding:24px;max-width:1600px;margin:auto}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow)}.stat{display:flex;justify-content:space-between;align-items:center}.stat .n{font-size:28px;font-weight:800}.stat small{color:var(--muted)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.toolbar{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-bottom:14px;flex-wrap:wrap}.toolbar .group{display:flex;gap:8px;flex-wrap:wrap}.btn{border:0;border-radius:9px;padding:10px 14px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:7px}.btn.primary{background:var(--blue);color:white}.btn.gold{background:linear-gradient(135deg,var(--gold),#b47c28);color:#fff}.btn.green{background:var(--green);color:white}.btn.red{background:var(--red);color:white}.btn.gray{background:#e9eef4;color:#263448}.btn.small{padding:7px 10px;font-size:12px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px;background:#fff}.table{width:100%;border-collapse:collapse;min-width:800px}.table th,.table td{padding:11px 12px;border-bottom:1px solid #edf0f4;text-align:left;font-size:14px;vertical-align:middle}.table th{background:#f3f6f9;color:#455268;font-size:12px;text-transform:uppercase;letter-spacing:.03em}.table tr:hover td{background:#fbfcfe}.badge{padding:5px 9px;border-radius:999px;font-size:12px;font-weight:700;display:inline-block}.badge.green{background:#dcf6e8;color:#0b7d44}.badge.red{background:#ffe0e0;color:#b72929}.badge.amber{background:#fff0c8;color:#9c6710}.badge.blue{background:#e3efff;color:#1555a5}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.field label{display:block;font-size:12px;font-weight:700;color:#536176;margin:0 0 6px}.field input,.field select,.field textarea{width:100%;border:1px solid #ccd5df;border-radius:9px;padding:10px 11px;background:#fff;font:inherit}.field textarea{min-height:90px;resize:vertical}.field.full{grid-column:1/-1}.alert{padding:12px 14px;border-radius:10px;margin-bottom:15px}.alert.success{background:#dcf7e8;color:#096b3d}.alert.error{background:#ffe5e5;color:#9f2020}.alert.info{background:#e9f2ff;color:#164c8e}.product-photo{width:54px;height:54px;border-radius:9px;object-fit:cover;border:1px solid var(--line);background:#fafafa}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 20% 10%,#34445a 0,#15202c 35%,#0c131b 100%);padding:20px}.login-card{width:min(430px,100%);background:#fff;border-radius:18px;padding:30px;box-shadow:0 30px 80px rgba(0,0,0,.3)}.login-card .logo{text-align:center}.login-card .logo img{height:120px;max-width:260px;object-fit:contain}.login-card h2{text-align:center;margin:4px 0 22px}.login-card .field{margin-bottom:13px}.sale-layout{display:grid;grid-template-columns:1.5fr .8fr;gap:18px}.sale-item{display:grid;grid-template-columns:2fr 90px 130px 40px;gap:8px;margin-bottom:8px}.totals{border-top:1px solid var(--line);margin-top:15px;padding-top:12px}.totals .row{display:flex;justify-content:space-between;padding:6px 0}.totals .total{font-size:20px;font-weight:800;background:#fff4d9;border-radius:9px;padding:12px;margin-top:7px}.switch{display:flex;gap:10px;align-items:center;padding:10px 0}.switch input{width:20px;height:20px}.receipt{max-width:820px;margin:auto;background:#fff;padding:30px;border:1px solid var(--line)}.receipt-head{display:grid;grid-template-columns:130px 1fr 120px;gap:18px;align-items:center}.receipt-head img{width:120px;max-height:90px;object-fit:contain}.qr-box{width:110px;height:110px}.receipt .table{min-width:0}.muted{color:var(--muted)}.right{text-align:right!important}.center{text-align:center!important}.stock-zero{color:var(--red);font-weight:700}.stock-low{color:var(--amber);font-weight:700}.kpi-note{font-size:12px;color:var(--muted);margin-top:6px}@media(max-width:1000px){.cards{grid-template-columns:1fr 1fr}.grid-3,.grid-2,.sale-layout{grid-template-columns:1fr}.form-grid.cols-3{grid-template-columns:1fr 1fr}}@media(max-width:760px){.sidebar{position:static;width:auto}.main{margin-left:0}.sidebar nav{grid-template-columns:repeat(2,1fr)}.brand{padding:10px 14px}.brand img{width:58px;height:45px}.sidebar-user{display:none}.topbar{position:static;padding:14px 16px}.content{padding:14px}.cards{grid-template-columns:1fr 1fr}.form-grid,.form-grid.cols-3{grid-template-columns:1fr}.sale-item{grid-template-columns:1fr 75px 105px 36px}.receipt-head{grid-template-columns:90px 1fr}.qr-box{grid-column:1/-1}.receipt{padding:15px}}@media print{.sidebar,.topbar,.no-print{display:none!important}.main{margin:0}.content{padding:0}.receipt{border:0;max-width:none}.app-shell{min-height:auto}}