:root{
  --ink:#10201c; --ink-2:#3d4c48; --muted:#6b7a76; --line:#e3e9e7; --bg:#f4f7f6; --card:#fff;
  --brand:#0b8a62; --brand-2:#0a6e4f; --brand-soft:#e3f4ed;
  --side:#0f1f1b; --side-2:#1a2f29; --side-text:#b9cbc5;
  --good:#11804f; --good-bg:#e2f5ea; --warn:#9a6200; --warn-bg:#fdf1d8; --bad:#b42318; --bad-bg:#fde8e6;
  --info:#1d5fa8; --info-bg:#e5eefb; --radius:10px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;font-size:14px;color:var(--ink);background:var(--bg);line-height:1.5}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0;line-height:1.25}
h2{font-size:16px;font-weight:600}
h3{font-size:14px;font-weight:600}
.ic{width:18px;height:18px;flex:none}
small,.muted{color:var(--muted)}
code{background:#eef2f1;padding:1px 5px;border-radius:4px;font-size:12.5px}

/* shell */
.shell{display:flex;min-height:100vh}
.side{width:236px;background:var(--side);color:var(--side-text);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;flex:none}
.brand{display:flex;align-items:center;gap:10px;padding:18px 18px 6px;color:#fff;font-weight:700;font-size:16px}
.logo{width:30px;height:30px;border-radius:8px;background:var(--brand);display:grid;place-items:center;color:#fff}
.tenant-name{padding:0 18px 14px;font-size:12px;color:#86a097;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-bottom:1px solid var(--side-2)}
.side nav{padding:10px 8px;flex:1;overflow:auto}
.side nav a{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:8px;color:var(--side-text);font-weight:500;margin-bottom:2px}
.side nav a:hover{background:var(--side-2);color:#fff;text-decoration:none}
.side nav a.on{background:var(--brand);color:#fff}
.side-foot{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-top:1px solid var(--side-2)}
.side-foot .me{display:flex;flex-direction:column;min-width:0}
.side-foot strong{color:#fff;font-weight:600;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-foot small{color:#86a097;font-size:12px}
.side-foot a{color:var(--side-text)}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:12px;padding:18px 28px 6px}
.top h1{font-size:21px;font-weight:700}
.menu-btn{display:none;background:none;border:0;padding:4px;color:var(--ink);cursor:pointer}
.content{padding:14px 28px 40px}

/* banners & flash */
.banner,.flash{margin:10px 28px 0;padding:10px 14px;border-radius:8px;font-size:13.5px}
.banner.info,.flash.info{background:var(--info-bg);color:var(--info)}
.banner.warn,.flash.warn{background:var(--warn-bg);color:var(--warn)}
.banner.bad,.flash.bad{background:var(--bad-bg);color:var(--bad)}
.flash.ok{background:var(--good-bg);color:var(--good)}
.banner a,.flash a{font-weight:600;color:inherit;text-decoration:underline}

/* cards, grid */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:16px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.stat .k{font-size:12.5px;color:var(--muted);font-weight:500}
.stat .v{font-size:26px;font-weight:700;margin-top:4px;letter-spacing:-.02em}
.stat .s{font-size:12px;color:var(--muted)}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.toolbar .grow{flex:1}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.right{margin-left:auto}
.stack>*+*{margin-top:12px}
.empty{text-align:center;padding:36px 16px;color:var(--muted)}
.empty h3{color:var(--ink);margin-bottom:6px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:8px;border:1px solid var(--brand);background:var(--brand);color:#fff;font:inherit;font-weight:600;cursor:pointer;line-height:1.2;white-space:nowrap}
.btn:hover{background:var(--brand-2);text-decoration:none}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{background:#f0f4f3}
.btn.danger{background:#fff;color:var(--bad);border-color:#f2c4bf}
.btn.danger:hover{background:var(--bad-bg)}
.btn.sm{padding:5px 10px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.linkbtn{background:none;border:0;padding:0;color:var(--brand);font:inherit;cursor:pointer}
.linkbtn.danger{color:var(--bad)}
form.inline{display:inline}

/* forms */
label{display:block;font-weight:600;font-size:13px;margin-bottom:5px}
.field{margin-bottom:14px}
.hint{font-size:12.5px;color:var(--muted);margin-top:4px;font-weight:400}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=tel],input[type=datetime-local],input[type=search],input[type=url],select,textarea{
  width:100%;padding:9px 11px;border:1px solid #cfd9d6;border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}
textarea{min-height:110px;resize:vertical}
input[type=file]{font:inherit;font-size:13px}
.check{display:flex;align-items:center;gap:8px;font-weight:500}
.check input{width:16px;height:16px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}
.form-actions{display:flex;gap:10px;margin-top:6px}

/* tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:600;background:#fafcfb}
tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right}
.card .table-wrap{border:0}
.card>.table-wrap{margin:0 -20px -18px;border-top:1px solid var(--line);border-radius:0 0 var(--radius) var(--radius)}

/* badges */
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:600;white-space:nowrap}
.badge.good{background:var(--good-bg);color:var(--good)}
.badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.bad{background:var(--bad-bg);color:var(--bad)}
.badge.info{background:var(--info-bg);color:var(--info)}
.badge.muted{background:#edf1f0;color:var(--muted)}
.tag{display:inline-block;padding:1px 8px;border-radius:5px;background:#eef3f1;color:var(--ink-2);font-size:12px;margin:1px 2px 1px 0}

/* meters */
.meter{margin-bottom:12px}
.meter-top{display:flex;justify-content:space-between;font-size:13px;margin-bottom:5px}
.meter-top span:last-child{color:var(--muted)}
.meter-bar{height:7px;border-radius:9px;background:#e8eeec;overflow:hidden}
.meter-bar i{display:block;height:100%;background:var(--brand);border-radius:9px}
.meter.warn .meter-bar i{background:#d99400}
.meter.bad .meter-bar i{background:var(--bad)}
.progress{height:9px;border-radius:9px;background:#e8eeec;overflow:hidden;display:flex}
.progress i{display:block;height:100%}

/* numbers */
.num-card{display:flex;flex-direction:column;gap:10px}
.num-card .phone{font-size:18px;font-weight:700}
.qr-box{display:grid;place-items:center;background:#fafcfb;border:1px dashed #cfd9d6;border-radius:10px;padding:14px;min-height:280px;text-align:center}
.qr-box img{width:260px;height:260px;image-rendering:pixelated}

/* inbox */
.inbox{display:grid;grid-template-columns:320px 1fr;border:1px solid var(--line);border-radius:var(--radius);background:#fff;height:calc(100vh - 150px);min-height:480px;overflow:hidden}
.conv-list{border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.conv-search{padding:10px;border-bottom:1px solid var(--line);display:flex;gap:6px}
.conv-search select{width:auto}
.convs{overflow-y:auto;flex:1}
.conv{display:block;padding:11px 14px;border-bottom:1px solid #f0f3f2;color:var(--ink);cursor:pointer}
.conv:hover{background:#f6f9f8;text-decoration:none}
.conv.on{background:var(--brand-soft)}
.conv .r1{display:flex;justify-content:space-between;gap:8px}
.conv .nm{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conv .tm{font-size:11.5px;color:var(--muted);flex:none}
.conv .pv{font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;justify-content:space-between;gap:6px}
.unread{background:var(--brand);color:#fff;border-radius:99px;font-size:11px;padding:0 7px;font-weight:700;flex:none}
.thread{display:flex;flex-direction:column;min-height:0;min-width:0}
.thread-head{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.thread-head .who{font-weight:700}
.thread-head select{width:auto;padding:5px 8px;font-size:13px}
.msgs{flex:1;overflow-y:auto;padding:16px 18px;background:#eef3f1;display:flex;flex-direction:column;gap:6px}
.msg{max-width:72%;padding:8px 11px;border-radius:10px;background:#fff;box-shadow:0 1px 0 rgba(0,0,0,.05);white-space:pre-wrap;word-wrap:break-word;font-size:13.5px}
.msg.out{align-self:flex-end;background:#d7f3e5}
.msg.bot,.msg.system{background:#e6effb}
.msg.campaign{background:#fff4dc}
.msg .meta{font-size:11px;color:var(--muted);margin-top:3px;text-align:right}
.msg img{max-width:240px;border-radius:6px;display:block;margin-bottom:4px}
.msg .file{display:inline-block;margin-bottom:4px;font-weight:600}
.composer{border-top:1px solid var(--line);padding:10px;display:flex;gap:8px;align-items:flex-end}
.composer textarea{min-height:42px;height:42px;max-height:140px}
.composer .attach{position:relative;overflow:hidden}
.composer .attach input{position:absolute;inset:0;opacity:0;cursor:pointer}
.no-thread{display:grid;place-items:center;color:var(--muted);height:100%}

/* auth */
.auth{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(160deg,#0f1f1b 0%,#123a2f 100%)}
.auth-card{width:100%;max-width:420px;background:#fff;border-radius:14px;padding:28px 28px 22px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.auth-card.wide{max-width:560px}
.auth-card .brand{color:var(--ink);padding:0 0 16px}
.auth-card h1{font-size:20px;margin-bottom:4px}
.auth-card p.lead{color:var(--muted);margin:0 0 18px}
.auth-card .btn{width:100%;justify-content:center;padding:10px}
.auth-foot{text-align:center;margin-top:14px;font-size:13px;color:var(--muted)}

/* billing */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.plan{border:1px solid var(--line);border-radius:12px;padding:18px;background:#fff;display:flex;flex-direction:column;gap:10px}
.plan.current{border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-soft)}
.plan .price{font-size:24px;font-weight:700}
.plan ul{margin:0;padding-left:18px;color:var(--ink-2);font-size:13px}
.pay-box{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start}
@media (max-width:1200px){.pay-box{grid-template-columns:1fr}}
#upiqr{background:#fff;padding:12px;border:1px solid var(--line);border-radius:10px;width:244px;height:244px}
.kv{display:grid;grid-template-columns:150px 1fr;gap:6px 14px;font-size:13.5px}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:500}

.pager{display:flex;gap:10px;align-items:center;justify-content:flex-end;margin-top:12px;font-size:13px;color:var(--muted)}
details summary{cursor:pointer;font-weight:600}
.callout{background:#f6faf8;border:1px solid var(--line);border-radius:8px;padding:12px 14px;font-size:13px;color:var(--ink-2)}

@media (max-width:960px){
  .g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .inbox{grid-template-columns:1fr}
  .inbox.has-thread .conv-list{display:none}
  .inbox:not(.has-thread) .thread{display:none}
}
@media (max-width:760px){
  .side{position:fixed;left:-250px;z-index:20;transition:left .2s}
  .side.open{left:0;box-shadow:0 0 0 100vmax rgba(0,0,0,.35)}
  .menu-btn{display:block}
  .top{padding:14px 16px 4px}
  .content{padding:12px 16px 32px}
  .banner,.flash{margin:10px 16px 0}
  .g2,.g3,.g4,.form-grid,.pay-box{grid-template-columns:1fr}
  .card>.table-wrap{margin:0 -20px -18px}
  .msg{max-width:88%}
}
@media print{
  .side,.top,.banner,.flash,.no-print{display:none!important}
  body{background:#fff}
  .content{padding:0}
}