:root{--bg: #f4f6f9;--card: #ffffff;--ink: #1a2332;--muted: #6b7a90;--brand: #1d6ff2;--brand-dark: #1558c7;--ok: #1a9e54;--warn: #d97706;--danger: #d93b3b;--line: #e3e8ef;--radius: 10px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink)}a{color:var(--brand);text-decoration:none}.layout{display:flex;min-height:100vh}.sidebar{width:220px;background:#16233a;color:#fff;padding:20px 14px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}.sidebar .brand{font-size:20px;font-weight:800;padding:6px 10px 16px;letter-spacing:.5px}.sidebar .brand span{color:#6db3ff}.sidebar .store{font-size:12px;color:#9fb3d1;padding:0 10px 14px}.navlink{display:block;color:#c8d5ea;padding:10px 12px;border-radius:8px;font-size:14px}.navlink:hover{background:#22344f;color:#fff}.navlink.active{background:var(--brand);color:#fff}.sidebar .who{margin-top:auto;font-size:12px;color:#9fb3d1;padding:10px;border-top:1px solid #2a3d5c}.sidebar .who button{background:none;border:none;color:#ff9d9d;cursor:pointer;font-size:12px;padding:4px 0}.main{flex:1;padding:24px;max-width:1200px}.page-title{margin:0 0 16px;font-size:22px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px}table.grid{width:100%;border-collapse:collapse;font-size:14px}table.grid th,table.grid td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}table.grid th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:600}.badge.ok{background:#e3f6ec;color:var(--ok)}.badge.warn{background:#fdf1de;color:var(--warn)}.badge.muted{background:#eef1f5;color:var(--muted)}.badge.cash{background:#e3f6ec;color:var(--ok)}.badge.card{background:#e3edfd;color:var(--brand)}.field{margin-bottom:12px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:4px}input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;background:#fff}input:focus,select:focus{outline:2px solid #bcd6ff;border-color:var(--brand)}.btn{display:inline-block;background:var(--brand);color:#fff;border:none;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer}.btn:hover{background:var(--brand-dark)}.btn:disabled{opacity:.5;cursor:default}.btn.secondary{background:#eef1f5;color:var(--ink)}.btn.danger{background:var(--danger)}.btn.small{padding:6px 12px;font-size:12px}.row{display:flex;gap:12px;align-items:center}.spread{display:flex;justify-content:space-between;align-items:center}.err{background:#fdeeee;color:brown;border:1px solid #f3c2c2;padding:10px 12px;border-radius:8px;margin-bottom:12px;font-size:14px}.okmsg{background:#e9f9f0;color:#14663a;border:1px solid #bfe8cf;padding:10px 12px;border-radius:8px;margin-bottom:12px;font-size:14px}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:32px;width:100%;max-width:400px}.auth-card h1{margin:0 0 4px;font-size:24px}.auth-card h1 span{color:var(--brand)}.auth-card p.sub{color:var(--muted);font-size:14px;margin:0 0 20px}.pos{display:grid;grid-template-columns:1fr 380px;gap:16px;align-items:start}.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.prod-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px;cursor:pointer}.prod-card:hover{border-color:var(--brand)}.prod-card.out{opacity:.45;cursor:default}.prod-card .nm{font-weight:600;font-size:14px;margin-bottom:4px}.prod-card .pr{color:var(--brand);font-weight:700}.prod-card .st{font-size:12px;color:var(--muted)}.cart{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;position:sticky;top:24px}.cart-line{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--line);font-size:14px}.cart-line .qty{display:flex;align-items:center;gap:6px}.qtybtn{width:26px;height:26px;border-radius:6px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:14px}.totals{margin-top:12px;font-size:14px}.totals .grand{font-size:20px;font-weight:800;margin-top:6px}.modal-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a142873;display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}.modal{background:#fff;border-radius:14px;padding:24px;width:100%;max-width:460px;max-height:90vh;overflow:auto}.modal h3{margin:0 0 16px}.receipt{max-width:340px;margin:0 auto;background:#fff;padding:24px 20px;font-family:Courier New,monospace;font-size:13px;border:1px solid var(--line)}.receipt h2{text-align:center;font-size:18px;margin:0 0 4px;font-family:inherit}.receipt .center{text-align:center}.receipt hr{border:none;border-top:1px dashed #999;margin:10px 0}.receipt table{width:100%;border-collapse:collapse}.receipt td{padding:2px 0;vertical-align:top}.receipt .r{text-align:right}@media print{.sidebar,.no-print{display:none!important}.main{padding:0;max-width:none}.receipt{border:none;max-width:none}}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:16px}.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px}.stat .lbl{font-size:12px;color:var(--muted);text-transform:uppercase}.stat .val{font-size:22px;font-weight:800;margin-top:4px}@media (max-width: 900px){.pos{grid-template-columns:1fr}.sidebar{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap;align-items:center}.sidebar .who{margin:0 0 0 auto;border:none}.layout{flex-direction:column}}