:root{
  --primary:#0c6e8e; --primary-hover:#014961; --primary-light:#E3F2F7; --primary-glow:rgba(12,110,142,.35);
  --accent:#1e8eb5; --accent-light:#EAF6FB;
  --success:#2e7d32; --success-light:#e8f5e9;
  --warning:#B45309; --warning-light:#FFFBEB;
  --info:#1e8eb5; --info-light:#EAF6FB;
  --danger:#dc2626; --danger-light:#fef2f2;
  --ink:#333; --muted:#66788a; --line:#E4EBEF;
  --surface:#F2F5F7; --card:#ffffff;
  --radius:10px; --radius-sm:8px;
  --shadow:0 1px 2px rgba(30,60,80,.06),0 2px 10px rgba(30,60,80,.07);
  --c1:#7cb5ec; --c2:#434348; --c3:#90ed7d; --c4:#f7a35c; --c5:#8085e9; --c6:#f15c80;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Helvetica Neue",Helvetica,Arial,"Hind Siliguri",sans-serif;background:var(--surface);color:var(--ink);font-size:14px;line-height:1.45}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.bn{font-family:'Hind Siliguri',sans-serif}

/* ---------- top navbar (EasyeBilling style) ---------- */
.eb-nav{position:sticky;top:0;z-index:50;background:var(--primary);box-shadow:0 2px 8px rgba(1,73,97,.35);display:flex;align-items:stretch;min-height:50px;padding:0 18px;flex-wrap:wrap}
.eb-brand{display:flex;align-items:center;gap:9px;color:#fff;font-weight:700;font-size:16px;letter-spacing:.3px;padding:0 16px 0 0;text-transform:uppercase;white-space:nowrap}
.eb-brand svg{border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.eb-menu{display:flex;align-items:stretch;flex:1;flex-wrap:wrap}
.eb-item{position:relative;display:flex;align-items:center;color:#fff !important;font-size:14px;font-weight:500;padding:0 16px;cursor:pointer;white-space:nowrap}
.eb-item:hover,.eb-item:focus{background:var(--primary-hover);text-decoration:none;color:#fff}
.eb-item.active{background:var(--primary-hover)}
.eb-item .caret{font-size:10px;margin-left:5px;opacity:.8}
.eb-drop{display:none;position:absolute;top:100%;left:0;background:#fff;min-width:230px;box-shadow:0 6px 22px rgba(1,50,66,.25);border:1px solid var(--line);border-radius:0 0 8px 8px;padding:6px 0;z-index:60}
.eb-item:hover .eb-drop,.eb-item:focus-within .eb-drop{display:block}
.eb-drop a{display:block;padding:9px 18px;font-size:13.5px;color:var(--ink) !important;font-weight:400}
.eb-drop a:hover{background:#EAF3F7;color:var(--primary-hover) !important;text-decoration:none}
.eb-drop .eb-drophead{padding:7px 18px 3px;font-size:10.5px;font-weight:700;letter-spacing:1px;color:#8AA0AD;text-transform:uppercase}
.eb-right{margin-left:auto;display:flex;align-items:center;gap:8px;color:#fff;font-size:13px;padding-left:12px}
.eb-right .avatar{width:32px;height:32px;border-radius:50%;background:#014961;color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;border:2px solid rgba(255,255,255,.4)}
.eb-right a.logout{color:#fff;opacity:.9;padding:6px 10px;border-radius:7px}
.eb-right a.logout:hover{background:var(--primary-hover);text-decoration:none;opacity:1}
.eb-toggle{display:none;background:none;border:0;color:#fff;font-size:20px;padding:4px 8px;cursor:pointer}
@media(max-width:1100px){
  .eb-toggle{display:block;margin-right:6px}
  .eb-menu{display:none;width:100%;flex-direction:column;align-items:stretch;padding-bottom:8px}
  .eb-menu.open{display:flex}
  .eb-item{padding:10px 16px}
  .eb-drop{position:static;box-shadow:none;border:0;border-radius:0;background:rgba(255,255,255,.06);padding:0 0 4px}
  .eb-drop a{color:#cfe7f0 !important;padding:7px 30px}
  .eb-drop a:hover{background:rgba(255,255,255,.08);color:#fff !important}
  .eb-right{margin-left:0}
}

/* ---------- page area ---------- */
.eb-content{padding:26px 22px 10px;flex:1}
.eb-content .container{max-width:1170px;margin:0 auto}
.eb-title{font-size:26px;font-weight:400;color:#4a5d65;margin:0 0 4px}
.eb-sub{color:#8AA0AD;font-size:13px;margin:0 0 24px}

/* icon shortcut row */
.icon-row{display:flex;justify-content:center;gap:56px;flex-wrap:wrap;margin:6px 0 44px}
.single-icon{text-align:center}
.single-icon img{width:78px;height:auto;display:block;margin:0 auto;transition:transform .15s}
.single-icon a:hover img{transform:translateY(-4px) scale(1.04)}
.single-icon .ic-lbl{display:block;margin-top:9px;font-size:13px;font-weight:600;color:#4a5d65}
.single-icon a:hover{text-decoration:none}
@media(max-width:768px){.icon-row{gap:26px}.single-icon img{width:56px}}

/* charts row */
.chart-row{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:26px}
@media(max-width:992px){.chart-row{grid-template-columns:1fr}}
.eb-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.eb-panel .p-head{padding:13px 18px;border-bottom:1px solid var(--line);font-size:14.5px;font-weight:700;color:#4a5d65;display:flex;align-items:center;gap:10px}
.eb-panel .p-head .spacer{flex:1}
.eb-panel .p-body{padding:16px}

/* strips */
.strip-row{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:900px;margin:6px auto 30px}
@media(max-width:768px){.strip-row{grid-template-columns:1fr}}
.strip{background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:8px;padding:12px 18px;font-size:14.5px;color:#4a5d65;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow)}
.strip b{font-size:16px}

/* legacy layout helpers still used by other pages */
.sidebar{display:none}
.main{margin-left:0;min-height:100vh;display:flex;flex-direction:column}
.topbar{display:none}
.sb-backdrop{display:none}

/* ---------- components ---------- */
.page-title{font-size:21px;font-weight:700;margin:0 0 2px;color:#4a5d65}
.page-title .tower-dot{color:var(--accent)}
.page-sub{color:var(--muted);font-size:13px;margin:0 0 18px}
.page-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.page-head .spacer{flex:1}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px}
.card-head{display:flex;align-items:center;gap:10px;padding:15px 18px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.card-title{font-size:14.5px;font-weight:700;margin:0;color:#4a5d65}
.card-sub{font-size:12px;color:var(--muted)}
.card-body{padding:18px}
.card-body.p0{padding:0}

.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid transparent;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;transition:.15s}
.btn:hover{text-decoration:none;filter:brightness(.96)}
.btn-primary{background:#1e8eb5;color:#fff;box-shadow:0 3px 10px rgba(12,110,142,.3)}
.btn-primary:hover{background:#0c6e8e;color:#fff}
.btn-outline{background:#fff;border-color:#CBD9E0;color:var(--ink)}
.btn-outline:hover{background:#F2F7F9;border-color:#AFC6D1}
.btn-danger{background:var(--danger);color:#fff}
.btn-success{background:var(--success);color:#fff}
.btn-sm{padding:4px 10px;font-size:12px;border-radius:7px}
.btn-light{background:var(--accent-light);color:var(--primary-hover)}

.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:11.5px;font-weight:600;line-height:1.4}
.badge-success{background:var(--success-light);color:var(--success)}
.badge-warning{background:var(--warning-light);color:var(--warning)}
.badge-info{background:var(--info-light);color:#0b6d90}
.badge-danger{background:var(--danger-light);color:var(--danger)}
.badge-dark{background:#1f2937;color:#f9fafb}
.badge-secondary{background:#EDF1F3;color:#4b5563}
.badge-primary{background:var(--accent-light);color:#0b6d90}

.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:14px;margin-bottom:18px}
.kpi-card{position:relative;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px 16px}
.kpi-card::before{content:'';position:absolute;inset:0;background:linear-gradient(145deg,color-mix(in srgb,var(--accent,#0c6e8e) 9%,transparent),transparent 65%);pointer-events:none}
.kpi-card::after{content:'';position:absolute;top:0;left:18px;right:18px;height:3px;border-radius:0 0 4px 4px;background:linear-gradient(90deg,var(--accent,#0c6e8e),color-mix(in srgb,var(--accent,#0c6e8e) 30%,transparent))}
.kpi-primary{--accent:#0c6e8e}.kpi-success{--accent:#2e7d32}.kpi-warning{--accent:#F59E0B}.kpi-danger{--accent:#dc2626}.kpi-info{--accent:#1e8eb5}.kpi-dark{--accent:#334155}
.kpi-label{font-size:10.5px;font-weight:700;letter-spacing:1.2px;color:var(--muted);text-transform:uppercase}
.kpi-value{font-size:24px;font-weight:700;margin-top:6px;letter-spacing:-.4px;color:#2c4a58}
.kpi-sub{font-size:12px;color:var(--muted);margin-top:4px}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:1100px){.grid2,.grid3{grid-template-columns:1fr}}

table.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;padding:10px 14px;background:#EDF3F6;color:#5c7382;font-size:11px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:11px 14px;border-bottom:1px solid #EFF3F5;vertical-align:middle}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:hover td{background:#F6FAFC}
.tbl .num{text-align:right}
.tbl-wrap{overflow-x:auto;border-radius:0 0 var(--radius) var(--radius)}

.filterbar{display:flex;gap:10px;align-items:end;flex-wrap:wrap}
.filterbar label{display:block;font-size:11px;font-weight:600;color:var(--muted);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px}
input.inp,select.inp,textarea.inp{width:100%;border:1px solid #CBD9E0;border-radius:8px;padding:8px 11px;font-size:13px;font-family:inherit;background:#fff;color:var(--ink)}
input.inp:focus,select.inp:focus,textarea.inp:focus{outline:2px solid color-mix(in srgb,var(--accent) 30%,transparent);border-color:var(--accent)}
.filterbar .inp{min-width:170px}

.alert{border-radius:8px;padding:11px 14px;font-size:13px;margin-bottom:14px;border:1px solid}
.alert-success{background:var(--success-light);color:var(--success);border-color:#bfe3c4}
.alert-danger{background:var(--danger-light);color:var(--danger);border-color:#fecaca}
.alert-info{background:var(--info-light);color:#0b6d90;border-color:#bfe2f0}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
@media(max-width:768px){.form-grid{grid-template-columns:1fr}}
.fg label{display:block;font-size:12px;font-weight:600;margin-bottom:5px;color:#374151}
.fg .req::after{content:' *';color:var(--danger)}

.seg{display:inline-flex;background:#E5EDF1;border-radius:9px;padding:3px;gap:2px}
.seg a{padding:6px 13px;border-radius:7px;font-size:12.5px;font-weight:600;color:var(--muted)}
.seg a.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(30,60,80,.12)}
.seg a:hover{text-decoration:none;color:var(--ink)}

.stat-line{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13px}
.stat-line:last-child{border-bottom:none}
.stat-line b{font-weight:700}

.progress{height:7px;background:#E5EDF1;border-radius:99px;overflow:hidden}
.progress>i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#1e8eb5,#0c6e8e)}

.bars{display:flex;align-items:flex-end;gap:8px;height:150px;padding-top:8px}
.bars .b{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end}
.bars .b i{width:100%;max-width:44px;border-radius:6px 6px 3px 3px;background:linear-gradient(180deg,#7cb5ec,#0c6e8e)}
.bars .b span{font-size:10.5px;color:var(--muted)}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:5px}

.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}
.dot.on{background:#22c55e;box-shadow:0 0 6px rgba(34,197,94,.7)}.dot.off{background:#ef4444}

.muted{color:var(--muted)}
.small{font-size:12px}
.right{text-align:right}
.mt0{margin-top:0}.mb0{margin-bottom:0}
.actions-cell{white-space:nowrap;display:flex;gap:6px}

/* login (EasyeBilling style: white, banner top, centered card) */
.eb-login{min-height:100vh;background:#fff;display:flex;flex-direction:column}
.eb-login .lb-banner{height:150px;background:url('/assets/app-header.png') no-repeat center/cover,linear-gradient(180deg,#0c6e8e,#014961);display:flex;align-items:center;justify-content:center;gap:14px;color:#fff}
.eb-login .lb-banner svg{border-radius:9px}
.eb-login .lb-banner .bn-t{font-size:20px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;text-shadow:0 1px 4px rgba(0,0,0,.4)}
.eb-login .lb-card{width:100%;max-width:420px;margin:60px auto 30px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:30px 32px}
.eb-login .lb-card h2{font-size:20px;font-weight:700;margin:0 0 4px;color:#2c4a58}
.eb-login .lb-card .sub{color:var(--muted);font-size:13px;margin-bottom:20px}
.eb-login .lb-foot{text-align:center;color:#9DB2BD;font-size:12px;padding-bottom:24px}
.eb-login input.inp{height:44px}
.eb-login .fg label{font-weight:600}

.login-wrap{min-height:100vh;display:grid;grid-template-columns:1.15fr 1fr}
@media(max-width:992px){.login-wrap{grid-template-columns:1fr}.login-left{display:none}}
.login-left{background:linear-gradient(160deg,#0c6e8e 0%,#014961 55%,#013a4d 100%);color:#fff;padding:56px 54px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.login-left::before{content:'';position:absolute;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.12),transparent 65%);top:-180px;left:-160px}
.login-left .tower-bg{position:absolute;right:-40px;bottom:-30px;width:340px;opacity:.1;pointer-events:none}
.login-brand{display:flex;align-items:center;gap:13px;margin-bottom:40px;position:relative;z-index:1}
.login-brand svg{border-radius:13px;box-shadow:0 6px 20px rgba(0,0,0,.35)}
.login-tag{font-size:11px;letter-spacing:2.4px;color:#9CC7D6;margin-bottom:14px;position:relative;z-index:1}
.login-h1{font-size:36px;font-weight:700;letter-spacing:-.5px;margin:0 0 14px;line-height:1.3;position:relative;z-index:1}
.login-h1 .hl{color:#FBBF24}
.login-p{color:#C6DDE7;font-size:15px;max-width:430px;position:relative;z-index:1}
.login-feats{list-style:none;margin:26px 0 0;padding:0;position:relative;z-index:1;display:grid;gap:11px}
.login-feats li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:#DDEDF4;font-weight:500}
.login-feats .tick{width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.4);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}
.login-right{display:flex;align-items:center;justify-content:center;background:#fff;padding:40px 24px}
.login-card{width:100%;max-width:380px}
.login-card h2{font-size:22px;font-weight:700;margin:0 0 4px;color:#2c4a58}
.login-card .sub{color:var(--muted);font-size:13px;margin-bottom:22px}
.fg .inp{margin-bottom:2px}

.appfoot{padding:14px 22px;color:var(--muted);font-size:12px;border-top:1px solid var(--line);background:#fff}