/* System fonts – NO internet required */
:root{
  --gold:#B8960C;--gold-light:#D4AF37;--gold-pale:#F5EFD6;--gold-deep:#7A6208;
  --cream:#FDFAF2;--ink:#1A1710;--ink-soft:#7A7668;--border:#E8E0C8;--surface:#FFFFFF;
  --red:#C0392B;--red-bg:#FDF0EE;--amber:#B45309;--amber-bg:#FEF3C7;
  --green:#276749;--green-bg:#ECFDF5;--blue:#1E40AF;--blue-bg:#EFF6FF;
  --silver:#6B7280;--silver-bg:#F3F4F6;
  --font-serif: Georgia, 'Times New Roman', 'Noto Serif', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', Helvetica, Arial, sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:var(--font-sans);background:var(--cream);color:var(--ink);font-size:14px;}
h1,h2,h3{font-family:var(--font-serif);}
/* layout rules moved to responsive block below */
.sidebar{background:var(--ink);color:#EDE8D8;}
.sidebar-brand{padding:18px 16px 12px;border-bottom:1px solid #2E2B20;}
.sidebar-brand h1{font-size:16px;color:var(--gold-light);font-family:var(--font-serif);}
.sidebar-brand p{font-size:10px;color:#6B6A5E;margin-top:1px;}
.sidebar-nav{padding:6px 0;flex:1;}
.nav-item{display:flex;align-items:center;gap:9px;padding:9px 16px;cursor:pointer;font-size:12px;color:#C8C2A8;transition:all .15s;border-left:3px solid transparent;user-select:none;}
.nav-item:hover{background:#252218;color:#EDE8D8;}
.nav-item.active{background:#252218;color:var(--gold-light);border-left-color:var(--gold-light);}
.nav-icon{width:14px;height:14px;flex-shrink:0;fill:currentColor;}
.sidebar-bottom{padding:10px 16px;border-top:1px solid #2E2B20;font-size:10px;color:#6B6A5E;}
/* main rules moved to responsive block below */
.topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:9px 18px;display:flex;align-items:center;justify-content:space-between;z-index:50;}
.topbar-title{font-family:var(--font-serif);font-size:17px;}
.topbar-right{display:flex;align-items:center;gap:8px;}
.notif-btn{position:relative;width:32px;height:32px;border-radius:50%;background:var(--gold-pale);border:1px solid var(--border);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;}
.notif-dot{position:absolute;top:2px;right:2px;width:8px;height:8px;background:var(--red);border-radius:50%;border:1px solid white;display:none;}
/* content rules moved to responsive block below */
.panel{display:none;}.panel.active{display:block;}
.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:16px;margin-bottom:12px;}
.card-3d{background:var(--surface);border-top:1px solid #e8e0c8;border-left:1px solid #e8e0c8;border-right:3px solid #b8960c;border-bottom:3px solid #b8960c;border-radius:10px;padding:16px;margin-bottom:12px;}
.card-title{font-family:var(--font-serif);font-size:13px;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border);}
/* stat-grid rules moved to responsive block below */
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:9px;padding:12px;}
.stat-label{font-size:10px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.05em;margin-bottom:3px;}
.stat-val{font-size:19px;font-family:var(--font-serif);}
.stat-sub{font-size:10px;color:var(--ink-soft);margin-top:2px;}
.form-grid{display:grid;gap:9px;}
.fg2{grid-template-columns:1fr 1fr;}
.fg3{grid-template-columns:1fr 1fr 1fr;}
.fg4{grid-template-columns:1fr 1fr 1fr 1fr;}
.field{display:flex;flex-direction:column;gap:3px;}
.field label{font-size:10px;font-weight:500;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em;}
.field input,.field select,.field textarea{padding:6px 9px;border:1px solid var(--border);border-radius:6px;font-size:12px;font-family:var(--font-sans);background:var(--cream);color:var(--ink);width:100%;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);background:#fff;}
.field textarea{resize:vertical;min-height:52px;}
.btn{padding:6px 14px;border-radius:6px;font-size:12px;font-family:var(--font-sans);cursor:pointer;transition:all .15s;border:1px solid var(--border);background:var(--surface);color:var(--ink);}
.btn:hover{background:#F7F3E8;}
.btn-gold{background:var(--gold);border-color:var(--gold-deep);color:#fff;}
.btn-gold:hover{background:var(--gold-deep);}
.btn-red{background:var(--red-bg);border-color:var(--red);color:var(--red);}
.btn-green{background:var(--green-bg);border-color:var(--green);color:var(--green);}
.btn-blue{background:var(--blue-bg);border-color:var(--blue);color:var(--blue);}
.btn-sm{padding:3px 8px;font-size:11px;border-radius:5px;}
.btn-wa{background:#25D366;border-color:#128C7E;color:#fff;display:inline-flex;align-items:center;gap:4px;padding:3px 8px;font-size:11px;border-radius:5px;cursor:pointer;text-decoration:none;font-family:var(--font-sans);}
.btn-wa:hover{background:#128C7E;}
.badge{display:inline-flex;align-items:center;padding:2px 6px;border-radius:4px;font-size:10px;font-weight:500;}
.badge-red{background:var(--red-bg);color:var(--red);}
.badge-amber{background:var(--amber-bg);color:var(--amber);}
.badge-green{background:var(--green-bg);color:var(--green);}
.badge-blue{background:var(--blue-bg);color:var(--blue);}
.badge-gold{background:var(--gold-pale);color:var(--gold-deep);}
.badge-gray{background:#F1EFE8;color:#5F5E5A;}
.badge-silver{background:var(--silver-bg);color:var(--silver);}
.alert{border-radius:7px;padding:9px 12px;margin-bottom:6px;display:flex;align-items:center;gap:9px;font-size:12px;}
.alert-red{background:var(--red-bg);border:1px solid #F5C6C2;}
.alert-amber{background:var(--amber-bg);border:1px solid #FCD34D;}
.alert-blue{background:var(--blue-bg);border:1px solid #BFDBFE;}
.alert-green{background:var(--green-bg);border:1px solid #6EE7B7;}
.alert-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;}
.tbl-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:11px;}
th{background:#F7F3E8;padding:7px 8px;text-align:left;font-size:10px;font-weight:500;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border);white-space:nowrap;}
td{padding:7px 8px;border-bottom:1px solid #F2EDD8;vertical-align:middle;}
tr:last-child td{border-bottom:none;}
tr:hover td{background:#FDFAF2;}
.pbar{height:3px;border-radius:2px;background:var(--border);margin-top:3px;}
.pbar-fill{height:100%;border-radius:2px;}
.bill-table{width:100%;border-collapse:collapse;font-size:11px;}
.bill-table th{background:#F7F3E8;padding:5px 5px;font-size:10px;font-weight:500;color:var(--ink-soft);border:1px solid var(--border);text-align:left;white-space:nowrap;}
.bill-table td{border:1px solid var(--border);padding:2px 2px;vertical-align:middle;}
.bill-table td input,.bill-table td select{width:100%;border:none;background:transparent;font-size:11px;padding:3px 3px;color:var(--ink);font-family:var(--font-sans);}
.bill-table td input:focus,.bill-table td select:focus{background:var(--gold-pale);border-radius:2px;outline:none;}
.totals-box{background:#F7F3E8;border-radius:8px;padding:12px;margin-top:9px;}
.total-row{display:flex;justify-content:space-between;align-items:center;font-size:12px;padding:3px 0;border-bottom:1px solid var(--border);}
.total-row:last-child{border:none;font-size:13px;font-weight:500;color:var(--gold-deep);padding-top:6px;}
.total-row input{border:1px solid var(--border);border-radius:4px;padding:2px 5px;font-size:12px;background:var(--cream);text-align:right;width:90px;}
.modal-bg{display:none;position:fixed;inset:0;background:rgba(26,23,16,.5);z-index:200;align-items:center;justify-content:center;}
.modal-bg.open{display:flex;}
.modal-box{background:var(--surface);border-radius:11px;border:1px solid var(--border);padding:20px;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;}
.modal-box.wide{max-width:660px;}
.modal-title{font-family:var(--font-serif);font-size:15px;margin-bottom:12px;}
.notif-drawer{position:fixed;top:0;right:-350px;width:330px;height:100vh;background:var(--surface);border-left:1px solid var(--border);z-index:300;transition:right .25s;overflow-y:auto;padding:16px;}
.notif-drawer.open{right:0;}
.notif-item{padding:9px 11px;border-radius:7px;margin-bottom:6px;border:1px solid var(--border);font-size:11px;}
.img-upload-box{width:80px;height:80px;border:1px dashed var(--border);border-radius:7px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:10px;color:var(--ink-soft);text-align:center;overflow:hidden;background:var(--cream);}
.img-upload-box img{width:100%;height:100%;object-fit:contain;}
.upi-box{width:90px;height:90px;border:1px dashed var(--border);border-radius:7px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;font-size:10px;color:var(--ink-soft);text-align:center;overflow:hidden;background:var(--cream);padding:3px;}
.upi-box img{width:72px;height:72px;object-fit:contain;}
.search-box{padding:6px 9px;border:1px solid var(--border);border-radius:6px;font-size:12px;background:var(--cream);color:var(--ink);font-family:var(--font-sans);}
.search-box:focus{outline:none;border-color:var(--gold);}
.tab-bar{display:flex;gap:2px;margin-bottom:12px;border-bottom:1px solid var(--border);flex-wrap:wrap;}
.tab{padding:6px 12px;font-size:12px;cursor:pointer;border:none;background:none;color:var(--ink-soft);border-bottom:2px solid transparent;margin-bottom:-1px;font-family:var(--font-sans);}
.tab.active{color:var(--gold-deep);border-bottom-color:var(--gold);font-weight:500;}
.hidden{display:none!important;}
.highlight-box{background:var(--gold-pale);border:1px solid var(--gold);border-radius:7px;padding:10px 12px;margin-bottom:8px;}
/* DATE PICKER */
.date-input-wrap{position:relative;display:flex;align-items:center;}
.date-input-wrap input{flex:1;padding-right:28px;}
.date-cal-btn{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;font-size:15px;color:var(--gold-deep);padding:2px;line-height:1;}
.cal-popup{position:fixed;z-index:500;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.15);padding:10px;width:260px;display:none;}
.cal-popup.open{display:block;}
.cal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;}
.cal-header button{background:none;border:1px solid var(--border);border-radius:5px;cursor:pointer;padding:3px 8px;font-size:13px;color:var(--ink);font-family:var(--font-sans);}
.cal-header button:hover{background:var(--gold-pale);}
.cal-header span{font-weight:600;font-size:13px;color:var(--gold-deep);font-family:var(--font-serif);}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:2px;text-align:center;}
.cal-day-label{font-size:9px;font-weight:600;color:var(--ink-soft);padding:4px 0;text-transform:uppercase;}
.cal-day{font-size:12px;padding:6px 2px;border-radius:5px;cursor:pointer;transition:all .1s;}
.cal-day:hover{background:var(--gold-pale);}
.cal-day.today{border:1px solid var(--gold);font-weight:600;}
.cal-day.selected{background:var(--gold);color:#fff;font-weight:600;}
.cal-day.other-month{color:#ccc;}
/* AUTH OVERLAY */
.auth-overlay{position:fixed;inset:0;z-index:9999;background:linear-gradient(135deg,#1A1710 0%,#2E2B20 50%,#1A1710 100%);display:flex;align-items:center;justify-content:center;transition:opacity .4s;}
.auth-overlay.hidden{opacity:0;pointer-events:none;}
.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px;width:100%;max-width:380px;box-shadow:0 20px 60px rgba(0,0,0,.5);animation:authSlideIn .4s ease-out;}
@keyframes authSlideIn{from{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}
.auth-logo{text-align:center;margin-bottom:20px;}
.auth-logo h1{font-family:var(--font-serif);font-size:22px;color:var(--gold-deep);margin-bottom:2px;}
.auth-logo p{font-size:11px;color:var(--ink-soft);}
.auth-form .field{margin-bottom:12px;}
.auth-form .field label{font-size:11px;font-weight:600;color:var(--ink);text-transform:uppercase;letter-spacing:.05em;}
.auth-form .field input{padding:10px 12px;font-size:14px;border-radius:8px;border:1.5px solid var(--border);background:var(--cream);}
.auth-form .field input:focus{border-color:var(--gold);background:#fff;outline:none;box-shadow:0 0 0 3px rgba(184,150,12,.15);}
.auth-err{color:var(--red);font-size:11px;margin-bottom:8px;min-height:16px;}
.auth-submit{width:100%;padding:11px;background:var(--gold);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s;font-family:var(--font-sans);}
.auth-submit:hover{background:var(--gold-deep);}
.auth-link{text-align:center;margin-top:12px;font-size:12px;color:var(--ink-soft);}
.auth-link a{color:var(--gold-deep);cursor:pointer;text-decoration:underline;}
.pin-grid{display:flex;gap:8px;justify-content:center;margin:16px 0;}
.pin-input{width:44px;height:52px;text-align:center;font-size:22px;font-weight:700;border:2px solid var(--border);border-radius:10px;background:var(--cream);color:var(--ink);font-family:var(--font-sans);-webkit-text-security:disc;}
.pin-input:focus{border-color:var(--gold);background:#fff;outline:none;box-shadow:0 0 0 3px rgba(184,150,12,.15);}
.pin-dots{display:flex;gap:6px;justify-content:center;margin:8px 0 4px;}
.pin-dot{width:10px;height:10px;border-radius:50%;background:var(--border);transition:background .15s;}
.pin-dot.filled{background:var(--gold);}
.remember-row{display:flex;align-items:center;gap:6px;margin:10px 0;font-size:12px;color:var(--ink-soft);}
.remember-row input[type="checkbox"]{accent-color:var(--gold);width:15px;height:15px;}
/* TOAST NOTIFICATION */
.toast-container{position:fixed;top:16px;right:16px;z-index:10000;display:flex;flex-direction:column;gap:8px;pointer-events:none;}
.toast{padding:12px 18px;border-radius:10px;font-size:12px;color:#fff;box-shadow:0 4px 12px rgba(0,0,0,.15);animation:toastIn .3s ease-out;pointer-events:auto;max-width:340px;}
.toast.success{background:#276749;}
.toast.error{background:#C0392B;}
.toast.info{background:#1E40AF;}
.toast.warning{background:#B45309;}
@keyframes toastIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
@keyframes toastOut{from{transform:translateX(0);opacity:1}to{transform:translateX(100%);opacity:0}}
/* SAVE LOCATION & ICON SETTINGS */
.path-display{background:var(--cream);border:1px solid var(--border);border-radius:6px;padding:8px 12px;font-size:12px;font-family:monospace;color:var(--ink);word-break:break-all;margin-bottom:8px;}
.icon-preview{width:64px;height:64px;border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--cream);}
.icon-preview img{width:100%;height:100%;object-fit:contain;}
/* LOGOUT BUTTON */
.logout-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;cursor:pointer;font-size:11px;color:#C8C2A8;transition:all .15s;border-left:3px solid transparent;}
.logout-btn:hover{background:#252218;color:var(--red);}
/* RESPONSIVE LAYOUT FIX */
html,body{height:100%;overflow:hidden;}
body{overflow:hidden;}
.layout{display:flex;height:100vh;overflow:hidden;}
.sidebar{width:200px;min-width:200px;flex-shrink:0;display:flex;flex-direction:column;position:relative;height:100vh;overflow-y:auto;}
.main{flex:1;display:flex;flex-direction:column;min-width:0;height:100vh;overflow:hidden;}
.content{flex:1;overflow-y:auto;overflow-x:hidden;padding:16px;}
.topbar{flex-shrink:0;}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%;}
.bill-table{min-width:900px;}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin-bottom:14px;}
.auth-card{max-width:420px;max-height:90vh;overflow-y:auto;}
.auth-overlay{overflow-y:auto;padding:20px;}
.form-grid.fg3{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));}
.form-grid.fg4{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));}
.modal-box{max-height:85vh;overflow-y:auto;}
@media(max-width:1100px){
  .sidebar{width:170px;min-width:170px;}
  .sidebar-brand h1{font-size:14px;}
  .nav-item{padding:8px 12px;font-size:11px;}
  .content{padding:12px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:850px){
  .sidebar{width:56px;min-width:56px;}
  .sidebar-brand h1,.sidebar-brand p,.nav-item span,.sidebar-bottom,.logout-btn span{display:none;}
  .sidebar-brand{padding:12px 8px;}
  .nav-item{padding:10px 0;justify-content:center;gap:0;font-size:0;border-left:none;}
  .nav-icon{width:18px;height:18px;}
  .logout-btn{justify-content:center;padding:10px 0;font-size:0;}
  .content{padding:10px;}
  .form-grid.fg2,.form-grid.fg3,.form-grid.fg4{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat-val{font-size:16px;}
  .tab-bar{gap:0;}
  .tab{padding:5px 8px;font-size:11px;}
}
.mobile-menu-btn{display:none;}
.sidebar-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:8999;display:none;}
.sidebar-overlay.open{display:block;}
@media(max-width:600px){
  .mobile-menu-btn{display:block!important;}
  .sidebar{
    position:fixed;
    left:-260px;
    top:0;
    bottom:0;
    width:240px;
    min-width:240px;
    display:flex;
    z-index:9000;
    transition:left 0.3s ease;
    box-shadow:2px 0 15px rgba(0,0,0,0.6);
  }
  .sidebar.open{left:0;}
  .sidebar-brand h1,.sidebar-brand p,.sidebar-bottom{display:block;}
  .nav-item{padding:12px 18px;justify-content:flex-start;gap:12px;font-size:14px;border-left:3px solid transparent;}
  .nav-icon{width:16px;height:16px;}
  .logout-btn{justify-content:flex-start;padding:12px 18px;font-size:13px;}
  .content{padding:8px;}
  .stat-grid{grid-template-columns:1fr;}
  .auth-card{margin:10px;padding:20px;}
}
/* PRINT */
@media print{
  .sidebar,.topbar,.no-print{display:none!important;}
  .main{display:block;height:auto;overflow:visible;}
  .content{overflow:visible;}
  #invoicePreview{display:block!important;padding:10mm;border:none!important;}
  body{background:#fff;overflow:visible;height:auto;}
  .inv-section{page-break-inside:avoid;}
}