:root{--glg:#16a34a;--glg-dark:#166534;--ink:#0f172a;--muted:#64748b;--bg:#f8fafc;--card:#fff;--line:#e2e8f0;--danger:#dc2626}
.glg-pos-app,.glg-login-wrap{font-family:"Kanit",system-ui,sans-serif;color:var(--ink)}
.glg-pos-app{min-height:80vh;background:var(--bg);border-radius:18px;overflow:hidden;margin:20px auto;max-width:1400px;box-shadow:0 10px 35px rgba(15,23,42,.08)}
.glg-topbar{display:flex;justify-content:space-between;align-items:center;background:#fff;padding:14px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}.glg-topbar strong{font-size:20px;color:var(--glg-dark)}.glg-topbar small{display:block;color:var(--muted)}.glg-topbar nav{display:flex;gap:14px;flex-wrap:wrap}.glg-topbar a{text-decoration:none;color:var(--ink);font-weight:600}.glg-topbar a:hover{color:var(--glg)}
.glg-main{padding:22px}.glg-main h1{font-size:28px;margin:0 0 18px}.glg-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 4px 18px rgba(15,23,42,.04);margin-bottom:18px}
.glg-kpi-grid{display:grid;grid-template-columns:repeat(6,minmax(140px,1fr));gap:12px;margin-bottom:18px}.glg-kpi{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.glg-kpi span{display:block;color:var(--muted);font-size:14px}.glg-kpi b{display:block;font-size:24px;margin-top:6px;color:var(--glg-dark)}
.glg-actions{display:flex;gap:10px;margin-bottom:18px}.glg-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid #bbf7d0;background:#fff;color:var(--glg-dark);padding:10px 16px;border-radius:12px;text-decoration:none;font-family:inherit;font-weight:700;cursor:pointer}.glg-btn.primary{background:var(--glg);border-color:var(--glg);color:#fff}.glg-btn.large{width:100%;font-size:18px;padding:14px}.glg-btn:hover{filter:brightness(.97)}
.glg-buy-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:16px}.glg-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.glg-card label{font-weight:600;font-size:14px}.glg-card input,.glg-card select,.glg-card textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-family:inherit;font-size:16px;background:#fff}.glg-card input:focus,.glg-card select:focus,.glg-card textarea:focus{outline:3px solid rgba(22,163,74,.12);border-color:var(--glg)}
.glg-item-row{display:grid;grid-template-columns:1.7fr 1fr 1fr .8fr 42px;gap:8px;align-items:center;margin:12px 0}.glg-item-row .line-total{text-align:right}.glg-item-row .remove{border:0;border-radius:10px;background:#fee2e2;color:#991b1b;font-size:22px;height:42px;cursor:pointer}.glg-summary{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:end;margin:14px 0}.glg-summary>div{text-align:right;font-size:24px;color:var(--glg-dark)}
.glg-price-row,.glg-stock-row,.glg-tx-row{display:grid;gap:8px;padding:10px 0;border-bottom:1px solid var(--line);align-items:center}.glg-price-row{grid-template-columns:1fr auto}.glg-stock-row{grid-template-columns:1fr auto}.glg-tx-row{grid-template-columns:1.3fr .8fr .8fr .8fr}.glg-muted{color:var(--muted);font-size:13px}.glg-status{min-height:24px}.glg-status.ok{color:var(--glg-dark)}.glg-status.error{color:var(--danger)}.glg-offline{margin-top:14px;padding:10px;border-radius:10px;background:#f1f5f9;color:var(--muted)}.glg-offline.offline{background:#fff7ed;color:#9a3412}.glg-alert{padding:10px;border-radius:10px;background:#fee2e2;color:#991b1b;margin-bottom:12px}
.glg-login-wrap{min-height:70vh;display:grid;place-items:center;padding:30px}.glg-login-card{width:min(420px,100%);background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 12px 30px rgba(15,23,42,.1)}.glg-login-card h1{color:var(--glg-dark)}.glg-login-card input[type=text],.glg-login-card input[type=password]{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px}.glg-login-card .button{background:var(--glg);color:#fff;border:0;padding:11px 18px;border-radius:10px;font-family:inherit;font-weight:700}
@media(max-width:1000px){.glg-kpi-grid{grid-template-columns:repeat(2,1fr)}.glg-buy-layout{grid-template-columns:1fr}.glg-topbar{align-items:flex-start;gap:10px;flex-direction:column}.glg-topbar nav{overflow:auto;width:100%;white-space:nowrap;flex-wrap:nowrap}.glg-main{padding:14px}}
@media(max-width:640px){.glg-kpi-grid,.glg-grid-2,.glg-summary{grid-template-columns:1fr}.glg-item-row{grid-template-columns:1fr 1fr}.glg-item-row .material{grid-column:1/-1}.glg-item-row .line-total{text-align:left}.glg-tx-row{grid-template-columns:1fr 1fr}.glg-pos-app{margin:0;border-radius:0}.glg-main h1{font-size:23px}}