:root{--bg:#f6f7fb;--card:#fff;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--accent:#111827;--good:#087a55;--bad:#b42318}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink)}a{text-decoration:none;color:inherit}.topbar{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line);height:60px;padding:0 16px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:800;font-size:20px}.top-actions{display:flex;gap:10px;align-items:center}.container{max-width:1100px;margin:auto;padding:18px 14px 90px}.grid{display:grid;gap:14px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:0 1px 2px rgba(0,0,0,.03)}.metric{font-size:24px;font-weight:800;margin-top:5px}.muted{color:var(--muted);font-size:13px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;background:var(--accent);color:#fff;border-radius:12px;padding:12px 15px;font-weight:700;cursor:pointer}.btn.ghost{background:#fff;color:#111827;border:1px solid var(--line)}.btn.danger{background:var(--bad)}.btn.small{padding:8px 10px;font-size:12px}.btn.block{width:100%}.actions{display:flex;gap:10px;flex-wrap:wrap}.field{margin-bottom:13px}.field label{display:block;font-weight:700;font-size:13px;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;border:1px solid #d1d5db;border-radius:12px;padding:12px;background:#fff;font:inherit}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:12px;border-bottom:1px solid var(--line);font-size:14px}.table th{font-size:12px;color:var(--muted);text-transform:uppercase}.alert{padding:12px 14px;border-radius:12px;margin-bottom:14px}.success{background:#ecfdf3;color:#027a48}.error{background:#fff1f0;color:#b42318}.nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.nav a{padding:10px 12px;background:#fff;border:1px solid var(--line);border-radius:10px;font-weight:700;font-size:13px}.pos-grid{display:grid;grid-template-columns:1.5fr .8fr;gap:14px}.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.product{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;cursor:pointer}.product strong{display:block;margin-bottom:5px}.cart-line{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.bottom-nav{display:none}.login{max-width:420px;margin:8vh auto}.hero{text-align:center;margin-bottom:22px}.hero h1{font-size:32px;margin-bottom:8px}.badge{display:inline-block;padding:6px 9px;border-radius:999px;background:#eef2ff;font-size:12px;font-weight:700}@media(max-width:760px){.container{padding:14px 12px 88px}.grid-4,.grid-2{grid-template-columns:1fr 1fr}.pos-grid{grid-template-columns:1fr}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.metric{font-size:21px}.desktop-only{display:none}.bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);z-index:50;padding:8px 4px max(8px,env(safe-area-inset-bottom))}.bottom-nav a{text-align:center;font-size:11px;font-weight:700}.bottom-nav span{display:block;font-size:20px;margin-bottom:2px}}@media(max-width:440px){.grid-4,.grid-2{grid-template-columns:1fr}.product-grid{grid-template-columns:1fr 1fr}}