:root{--navy:#123a55;--navy2:#0b2b40;--blue:#168bc1;--cyan:#40c5df;--coral:#e56a54;--ink:#17242e;--muted:#72808c;--line:#dde5ea;--bg:#f3f6f8;--white:#fff;--green:#218a61;--red:#c34848;--shadow:0 14px 40px rgba(21,45,60,.09)}
*{box-sizing:border-box}html{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}body{margin:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}.muted{color:var(--muted)}small{display:block}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.72rem;font-weight:800;color:var(--blue)}
.topbar{height:72px;background:linear-gradient(110deg,var(--navy2),var(--navy));color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:10}.brand,.installer-brand{display:flex;gap:12px;align-items:center}.brand strong,.installer-brand strong{display:block}.brand small,.installer-brand small{color:#a9c3d2;margin-top:2px}.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--cyan),var(--blue));font-weight:900;color:#fff}.top-actions{display:flex;align-items:center;gap:16px;font-size:.9rem}.user-chip{background:rgba(255,255,255,.1);padding:8px 12px;border-radius:999px}.icon-link{font-size:1.2rem}
.app-shell{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 72px)}.sidebar{padding:24px 16px;border-right:1px solid var(--line);background:#fff;display:flex;flex-direction:column;gap:6px}.sidebar a,.nav-disabled{padding:11px 14px;border-radius:10px;font-weight:650;font-size:.92rem}.sidebar a:hover,.sidebar a.active{background:#eaf5fa;color:#096b98}.nav-disabled{color:#a4adb4;display:flex;justify-content:space-between}.nav-disabled small{font-size:.65rem;text-transform:uppercase}.content{padding:30px;min-width:0}.public-content{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 75% 15%,#dff7fb,transparent 34%),var(--bg)}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:22px}.page-head h1{margin:4px 0 0;font-size:1.8rem}.button{border:0;border-radius:10px;padding:11px 17px;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button-primary{background:linear-gradient(135deg,var(--blue),#0874a8);color:#fff;box-shadow:0 8px 18px rgba(14,132,184,.2)}.button-secondary{background:#fff;color:var(--navy);border:1px solid var(--line)}.button:disabled{opacity:.45;cursor:not-allowed}.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);margin-bottom:22px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.panel h2,.panel-head h2{margin:0;font-size:1.08rem}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:22px}.stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow)}.stat small{color:var(--muted);font-weight:700}.stat strong{font-size:2rem;display:block;margin:9px 0 2px}.stat span{font-size:.85rem;color:var(--muted)}.stat.accent{background:linear-gradient(140deg,var(--navy),#12678b);color:#fff}.stat.accent small,.stat.accent span{color:#bedbe8}
.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;min-width:680px}th{text-align:left;color:var(--muted);font-size:.73rem;text-transform:uppercase;letter-spacing:.06em;padding:11px 12px;border-bottom:1px solid var(--line)}td{padding:13px 12px;border-bottom:1px solid #edf1f3;font-size:.91rem}td small{color:var(--muted);margin-top:4px}.stock-badge{display:inline-block;padding:5px 10px;border-radius:999px;background:#e9f7f1;color:var(--green);font-weight:800}.stock-badge.zero{background:#f8eaea;color:var(--red)}.empty{text-align:center;color:var(--muted);padding:34px 14px}.empty strong,.empty span{display:block}.empty span{margin-top:7px}.positive{color:var(--green);font-weight:800}.negative{color:var(--red);font-weight:800}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-grid h2{grid-column:1/-1;margin-top:8px}.form-grid label,.inline-form label{font-size:.82rem;font-weight:750;color:#41515d}.form-grid input,.inline-form input,.inline-form select,.search-row input,.scan-form input,.login-form input{display:block;width:100%;margin-top:7px;padding:12px 13px;border:1px solid #ccd7dd;border-radius:9px;background:#fff;outline:none}.form-grid input:focus,.inline-form input:focus,.search-row input:focus,.scan-form input:focus,.login-form input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,139,193,.1)}.form-grid label small{font-weight:500;color:var(--muted);margin-top:5px}.full{grid-column:1/-1}.inline-form{display:grid;grid-template-columns:2fr 1fr 2fr auto;gap:12px;align-items:end}.search-row{display:flex;gap:10px;margin-bottom:16px}.search-row input{margin:0;max-width:520px}
.alert{padding:12px 15px;border-radius:10px;margin-bottom:16px;font-weight:650}.alert-success{background:#e8f7f0;color:#176847}.alert-error{background:#fbeaea;color:#9d3030}.alert-warning{background:#fff4d9;color:#805d0c}.login-card{width:min(430px,100%);background:#fff;padding:34px;border-radius:20px;box-shadow:var(--shadow);border:1px solid var(--line)}.login-card h1{margin:28px 0 6px}.login-form{display:grid;gap:12px;margin-top:20px}.pin-input{text-align:center;letter-spacing:.35em;font-size:1.3rem;font-weight:800}
.installer-body{background:radial-gradient(circle at 80% 10%,#dff7fb,transparent 38%),var(--bg);min-height:100vh}.installer{width:min(720px,calc(100% - 32px));margin:42px auto}.installer>.installer-brand{margin-bottom:18px}.installer .panel h1{margin:6px 0}.installer .panel>p{margin-bottom:24px}
.welcome{max-width:760px;text-align:center}.welcome h1{font-size:clamp(2.2rem,7vw,4.5rem);line-height:1;margin:12px 0 18px;color:var(--navy)}.welcome p{font-size:1.2rem;color:var(--muted);max-width:620px}.welcome-actions{display:flex;justify-content:center;gap:12px;margin-top:28px}
.pos-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px}.scan-form{display:grid;grid-template-columns:1fr auto;gap:10px}.scan-form input{margin:0;font-size:1rem}.pos-empty{padding:70px 10px}.cart-list{margin-top:18px}.cart-item{display:grid;grid-template-columns:1fr auto 110px;align-items:center;gap:16px;padding:14px 0;border-top:1px solid var(--line)}.cart-item small{color:var(--muted);margin-top:4px}.qty-control{display:flex;align-items:center;gap:8px}.qty-control form{margin:0}.qty-control button{width:30px;height:30px;border:1px solid var(--line);background:#fff;border-radius:8px}.pos-summary{height:max-content;position:sticky;top:94px}.pos-total{font-size:2.4rem;font-weight:900;margin:8px 0;color:var(--navy)}.checkout-form{display:grid;gap:10px;margin:22px 0}.link-danger{border:0;background:none;color:var(--red);padding:8px 0}.status-dot{color:var(--green);font-weight:750;font-size:.86rem}.status-dot:before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green);margin-right:7px}
@media(max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;bottom:0;left:0;right:0;z-index:20;display:grid;grid-template-columns:repeat(4,1fr);padding:7px;background:#fff;border-top:1px solid var(--line);border-right:0}.sidebar a{text-align:center;padding:9px 4px;font-size:.75rem}.nav-disabled{display:none}.content{padding:20px 16px 88px}.stats-grid{grid-template-columns:1fr}.pos-layout{grid-template-columns:1fr}.pos-summary{position:static}.topbar{padding:0 14px}.top-actions>a:first-child,.user-chip{display:none}.inline-form{grid-template-columns:1fr 1fr}.inline-form button{grid-column:1/-1}.cart-item{grid-template-columns:1fr auto}.cart-item>strong{grid-column:1/-1;text-align:right}}
@media(max-width:600px){.form-grid,.inline-form{grid-template-columns:1fr}.full,.form-grid h2,.inline-form button{grid-column:auto}.page-head{align-items:flex-start;flex-direction:column}.page-head .button{width:100%}.panel{padding:16px;border-radius:14px}.scan-form{grid-template-columns:1fr}.search-row{flex-direction:column}.welcome-actions{flex-direction:column}.topbar{height:62px}.brand small{display:none}.app-shell{min-height:calc(100vh - 62px)}.pos-total{font-size:2rem}}