*{box-sizing:border-box}
:root{--bg:#f5f7fb;--surface:#fff;--ink:#172033;--muted:#64748b;--line:#e2e8f0;--brand:#D4AF37;--brand2:#D4AF37;--nav:#0b1720;--soft:#FFF8DC;--danger:#b91c1c;--shadow:0 10px 30px rgba(15,23,42,.07)}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--ink)}
.top{height:68px;background:linear-gradient(135deg,#0b1720,#123c3a);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:20;box-shadow:0 4px 20px rgba(2,6,23,.15)}
.brand{font-size:19px;font-weight:800;letter-spacing:.2px}.top a{color:#D4AF37!important;text-decoration:none}
.layout{display:flex;min-height:calc(100vh - 68px)}.side{width:245px;background:#0d1b24;padding:16px 12px;position:sticky;top:68px;height:calc(100vh - 68px);overflow:auto}
.side a{display:block;color:#b8c7d2;text-decoration:none;padding:11px 13px;border-radius:10px;margin-bottom:4px;font-size:13px;font-weight:600}
.side a:hover{background:#3A321B;color:#fff}.side a.active{background:linear-gradient(135deg,#D4AF37,#D4AF37);color:#fff;box-shadow:0 5px 14px rgba(15,118,110,.25)}
.main{flex:1;padding:28px;min-width:0;max-width:1800px}.main h2{margin:0 0 18px;font-size:25px}.main h3{margin-top:0}
.card{background:var(--surface);border:1px solid rgba(226,232,240,.8);border-radius:16px;padding:20px;box-shadow:var(--shadow);margin-bottom:18px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat{font-size:28px;font-weight:850;margin-top:5px}.muted{font-size:12px;color:var(--muted);font-weight:600}
.form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}label{font-size:12px;font-weight:750;color:#334155}
input,select,textarea{width:100%;padding:10px 11px;border:1px solid #cbd5e1;border-radius:9px;margin-top:6px;background:#fff;color:#172033;outline:none}
input:focus,select:focus,textarea:focus{border-color:#D4AF37;box-shadow:0 0 0 3px rgba(15,118,110,.1)}textarea{min-height:85px;resize:vertical}.wide{grid-column:1/-1}
.btn,button{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:#D4AF37;color:#fff;border:0;border-radius:9px;padding:10px 15px;text-decoration:none;cursor:pointer;font-weight:750;box-shadow:0 4px 10px rgba(15,118,110,.16)}
.btn:hover,button:hover{background:#D4AF37}.btn.gray{background:#64748b}.btn.green{background:#15803d}.btn.danger{background:#b91c1c}
.actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-bottom:16px}.actions h2{margin-right:auto;margin-bottom:0}
.tablewrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:11px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;font-size:13px}.table th{background:#f8fafc;color:#475569;font-size:11px;text-transform:uppercase;letter-spacing:.04em}
.badge{display:inline-block;padding:4px 9px;border-radius:999px;background:#e2e8f0;font-size:11px;font-weight:750}.ok{background:#dcfce7;color:#166534;padding:11px;border-radius:9px;margin-bottom:15px}.err{background:#fee2e2;color:#991b1b;padding:11px;border-radius:9px;margin-bottom:15px}
.login{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 20% 10%,#D4AF37,transparent 30%),var(--bg)}.login .card{width:430px;max-width:95vw}.login h1{margin-top:0}
.pos-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(320px,.8fr);gap:18px}.pos-products{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-height:520px;overflow:auto}.product-tile{border:1px solid var(--line);border-radius:12px;background:#fff;padding:13px;text-align:left;cursor:pointer}.product-tile:hover{border-color:#D4AF37;transform:translateY(-1px)}.product-tile b{display:block}.product-tile small{color:var(--muted)}
.pos-total{font-size:30px;font-weight:900}.totalbox{background:#0b1720;color:#fff;border-radius:14px;padding:18px}.totalbox .muted{color:#b8c7d2}
@media(max-width:1100px){.grid{grid-template-columns:repeat(2,1fr)}.pos-grid{grid-template-columns:1fr}.pos-products{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.layout{display:block}.side{position:relative;top:0;width:100%;height:auto;display:grid;grid-template-columns:repeat(2,1fr);gap:3px}.main{padding:13px}.form{grid-template-columns:1fr}.wide{grid-column:auto}.grid{grid-template-columns:1fr}.top{padding:0 13px}.pos-products{grid-template-columns:1fr}.table th,.table td{padding:8px}}


/* v5 responsive shell */
.menu-toggle{display:none;background:transparent;box-shadow:none;padding:8px;margin:0}
.userbar{display:flex;align-items:center;gap:10px;font-size:13px}.userbar a{color:#D4AF37!important;text-decoration:none}.role-pill{padding:4px 9px;border-radius:999px;background:rgba(255,255,255,.12);font-size:11px;text-transform:capitalize}
.side .nav-title{color:#64748b;font-size:10px;font-weight:800;letter-spacing:.12em;padding:8px 13px 10px}
.nav-backdrop,.mobile-bottom-nav{display:none}

@media(max-width:700px){
 .top{height:60px}.menu-toggle{display:inline-flex;flex-direction:column;align-items:center;justify-content:center}.layout{display:block}.side{position:fixed;left:0;top:60px;bottom:0;width:280px;height:auto;z-index:50;transform:translateX(-105%);transition:transform .22s ease;display:block;padding:15px 12px;box-shadow:12px 0 30px rgba(2,6,23,.18)}
 .menu-open .side{transform:translateX(0)}.nav-backdrop{display:block;position:fixed;inset:60px 0 0;background:rgba(2,6,23,.45);z-index:40;opacity:0;pointer-events:none;transition:opacity .22s}.menu-open .nav-backdrop{opacity:1;pointer-events:auto}
 .userbar>span:first-child{display:none}.userbar{gap:6px}.main{padding:12px 12px 82px}.mobile-bottom-nav{display:flex;position:fixed;left:8px;right:8px;bottom:8px;height:62px;background:#0b1720;border:1px solid rgba(255,255,255,.08);border-radius:17px;z-index:35;box-shadow:0 10px 30px rgba(2,6,23,.25);justify-content:space-around;padding:5px}
 .mobile-bottom-nav a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:#94a3b8;text-decoration:none;font-size:9px;font-weight:700;border-radius:12px}
 .mobile-bottom-nav a.active{background:#D4AF37;color:#fff}.mobile-bottom-nav svg{width:15px;height:15px}.card{padding:15px;border-radius:13px}.actions{gap:7px}.btn,button{min-height:42px}.table th,.table td{font-size:12px}
}
.side a{gap:8px}

/* V10 — icon-free professional interface */
:root{--bg:#f4f7f8;--surface:#ffffff;--ink:#17212b;--muted:#667085;--line:#dfe5ea;--brand:#D4AF37;--brand2:#D4AF37;--nav:#101b24;--soft:#FFF8DC;--danger:#b42318;--shadow:0 8px 24px rgba(16,24,40,.06)}
body{letter-spacing:.005em}
.top{height:64px;padding:0 22px;background:#101b24;box-shadow:0 2px 12px rgba(16,24,40,.12)}
.brand{font-size:18px;font-weight:750;letter-spacing:.1px}.userbar{font-size:12px}.role-pill{border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06)}
.menu-toggle{display:none;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.18);box-shadow:none;padding:7px 10px;border-radius:7px;font-size:12px;font-weight:700}
.side{width:230px;background:#101b24;padding:14px 10px;top:64px;height:calc(100vh - 64px)}
.side .nav-title{font-size:9px;letter-spacing:.14em;color:#7f8c98;padding:9px 12px}.side a{padding:9px 12px;margin-bottom:2px;border-radius:7px;font-size:12px;font-weight:650;color:#b8c2ca}.side a:hover{background:#172831}.side a.active{background:#D4AF37;box-shadow:none;color:#fff}
.main{padding:24px;max-width:1800px}.main h2{font-size:23px;margin-bottom:15px}.card{border-radius:12px;padding:18px;box-shadow:0 5px 18px rgba(16,24,40,.05);border-color:#e5e9ed}
.form{gap:13px}label{font-size:11px;color:#344054}input,select,textarea{padding:9px 10px;border-radius:7px;border-color:#cfd7df;font-size:13px}input:focus,select:focus,textarea:focus{border-color:#D4AF37;box-shadow:0 0 0 2px rgba(11,111,103,.10)}
.btn,button{min-height:38px;padding:8px 13px;border-radius:7px;font-size:12px;font-weight:700;box-shadow:none}.btn:hover,button:hover{background:#D4AF37}.btn.gray{background:#667085}.btn.danger{background:#b42318}
.actions{gap:7px;margin-bottom:13px}.actions h2{margin-bottom:0}
.table th,.table td{padding:9px 10px;font-size:12px}.table th{font-size:10px;background:#f7f9fa;color:#667085}.table tbody tr:hover{background:#fafcfc}
.action-link{display:inline-flex;align-items:center;min-height:30px;padding:5px 9px;border:1px solid #d8e0e6;border-radius:6px;background:#fff;color:#344054!important;text-decoration:none!important;font-size:11px;font-weight:700;transition:.15s ease}.action-link:hover{border-color:#D4AF37;background:#FFF8DC;color:#D4AF37!important}.table td .action-link{margin-right:3px}
.mobile-bottom-nav a{font-size:9px}.mobile-bottom-nav a.active{background:#D4AF37}
.ok,.err{padding:9px 11px;border-radius:7px;font-size:12px}.badge{padding:3px 7px;font-size:10px}
.pos-grid{gap:15px}.product-tile{border-radius:9px;padding:11px}.totalbox{border-radius:11px;padding:16px}.pos-total{font-size:28px}
@media(max-width:700px){.menu-toggle{display:inline-flex}.top{height:58px;padding:0 11px}.side{top:58px}.nav-backdrop{inset:58px 0 0}.main{padding:12px 12px 82px}.card{padding:14px}.btn,button{min-height:40px}.action-link{min-height:32px;padding:6px 9px}.table th,.table td{padding:8px;font-size:11px}}
/* V11 — remove mobile/top quick navigation links */
.mobile-bottom-nav{display:none!important}
@media(max-width:700px){.main{padding-bottom:12px}}


/* V12 — Professional Gold Theme #D4AF37 */
:root{--brand:#D4AF37;--brand2:#D4AF37;--soft:#FFF8DC;--line:#E6D79A;--shadow:0 8px 24px rgba(16,24,40,.06)}
body{background:var(--bg);color:#17212b}
.top{background:#101b24;color:#fff;border-bottom:2px solid #D4AF37}
.brand,.main h2,.main h3{color:#D4AF37}
.top a,.userbar a{color:#D4AF37!important}
.side a.active{background:#D4AF37!important;color:#101b24!important}
.side a:hover{background:rgba(212,175,55,.14);color:#D4AF37}
.side .nav-title{color:#D4AF37}
input:focus,select:focus,textarea:focus{border-color:#D4AF37;box-shadow:0 0 0 2px rgba(212,175,55,.18)}
.btn,button{background:#D4AF37;color:#101010;box-shadow:0 2px 8px rgba(212,175,55,.18)}
.btn:hover,button:hover{background:#D4AF37;color:#101010;filter:brightness(.94)}
.btn.gray,.btn.green,.btn.danger{background:#D4AF37;color:#101010}
.action-link{border-color:#D4AF37;color:#6B5710!important}
.action-link:hover{border-color:#D4AF37;background:#FFF8DC;color:#6B5710!important}
.table th{border-top:1px solid #D4AF37;background:#FFF8DC;color:#6B5710}
.table tbody tr:hover{background:#FFFDF3}
.badge{border:1px solid #D4AF37;background:#FFF8DC;color:#6B5710}
.product-tile:hover{border-color:#D4AF37}
.totalbox{border:1px solid #D4AF37}
.login{background:radial-gradient(circle at 20% 10%,#FFF8DC,transparent 30%),var(--bg)}
.ok{border-left:3px solid #D4AF37}.err{border-left:3px solid #D4AF37}
@media(max-width:700px){.menu-toggle{border-color:#D4AF37;color:#D4AF37}.side{border-right:1px solid #D4AF37}}


/* V16 — Premium UAE Optical Suite */
:root{--gold:#D4AF37;--gold-soft:#FFF8DC;--ink-strong:#101828;--navy:#101b24;--surface:#fff;--border:#E7E0BF;--shadow-premium:0 10px 28px rgba(16,24,40,.06)}
body{background:linear-gradient(180deg,#fbfcfd 0,#f4f7f8 100%)}
.top{border-bottom:1px solid rgba(212,175,55,.55);backdrop-filter:saturate(120%)}
.brand{letter-spacing:.2px}.main{max-width:1900px}
.card{border:1px solid var(--border);box-shadow:var(--shadow-premium)}
.card:hover{box-shadow:0 12px 30px rgba(16,24,40,.075)}
.grid .card{position:relative;overflow:hidden}.grid .card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gold)}
.stat{color:var(--ink-strong);letter-spacing:-.02em}.main h2{font-weight:800;letter-spacing:-.02em}
.dashboard-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:2px 0 18px}.premium-panel{margin:0;padding:17px 18px}.panel-label{font-size:10px;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:#8a6f16;margin-bottom:12px}.panel-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-top:1px solid #eee8cf;font-size:12px;color:#475467}.panel-row strong{font-size:16px;color:#101828}.premium-finance{background:linear-gradient(135deg,#fff,#fffaf0)}.quick-panel{display:flex;align-items:center;justify-content:space-between;gap:20px}.quick-panel h3{margin-bottom:4px}
.table th{position:sticky;top:0;z-index:2}.table tbody tr{transition:background .15s ease}.table td,.table th{border-bottom-color:#eee8cf}
.btn,button{border:1px solid rgba(126,101,16,.18);font-weight:750}.action-link{border-color:#e1d49d;background:#fffdf4}
.print-box,.invoice-box,.section-box,.customer-box{border:1.5px solid #D4AF37!important}
@media(max-width:1000px){.dashboard-grid{grid-template-columns:1fr 1fr}.quick-panel{display:block}.quick-panel .actions{margin-top:12px}}
@media(max-width:700px){.dashboard-grid{grid-template-columns:1fr}.premium-panel{padding:14px}.panel-row{padding:7px 0}.quick-panel{display:block}}
@media print{body{background:#fff!important}.top,.side,.menu-toggle,.userbar,.nav-backdrop{display:none!important}.main{padding:0!important;max-width:none!important}.card{box-shadow:none!important;break-inside:avoid}.table th{position:static}.print-box,.invoice-box,.section-box,.customer-box{border:1.5px solid #D4AF37!important}}
.profile-link{color:inherit;text-decoration:none;font-weight:700}.profile-link:hover{text-decoration:underline}.status-paid,.status-partial,.status-unpaid{display:inline-block;padding:4px 8px;border-radius:999px;font-weight:700;font-size:.82rem;border:1px solid #D4AF37}.status-paid{background:#fff7d6;color:#7a5a00}.status-partial{background:#fffaf0;color:#8a6a10}.status-unpaid{background:#fff;color:#555}
/* V26 — Advanced User Role Permissions */
.permission-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px 12px;padding:4px 0}
.permission-item{display:flex;align-items:center;gap:9px;min-height:40px;padding:9px 11px;border:1px solid #e5e7eb;border-radius:8px;background:#fff;cursor:pointer;font-size:12px;font-weight:650;color:#344054}
.permission-item:hover{border-color:#D4AF37;background:#FFFDF3}
.permission-item input{width:16px;height:16px;accent-color:#D4AF37;margin:0}
@media(max-width:900px){.permission-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.permission-grid{grid-template-columns:1fr}.permission-item{min-height:42px}}