:root{
  --bg:#f5f3f8; --card:#fff; --ink:#1f1b2e; --muted:#6b6880; --line:#e8e4f0;
  --brand:#be185d; --brand-dark:#9d174d; --brand-soft:#fce7f3;
  --side:#1f1b2e; --side-ink:#cfc9e0;
  --green:#15803d; --green-soft:#dcfce7; --red:#b91c1c; --red-soft:#fee2e2;
  --amber:#b45309; --amber-soft:#fef3c7; --blue:#1d4ed8; --blue-soft:#dbeafe; --gray:#475569; --gray-soft:#eef0f4;
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Bengali","Noto Sans",Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:14.5px;line-height:1.5}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
code{background:#f1edf7;padding:2px 6px;border-radius:6px;font-size:12.5px;word-break:break-all}
h1,h2,h3{margin:0 0 .5em}
small,.muted{color:var(--muted)}

/* layout */
.app{display:flex;min-height:100vh}
.sidebar{width:232px;background:var(--side);color:var(--side-ink);display:flex;flex-direction:column;padding:20px 14px;position:sticky;top:0;height:100vh;flex-shrink:0}
.brand{font-size:21px;font-weight:800;color:#fff;padding:4px 10px 22px;letter-spacing:.2px}
.brand span,.brand-lg span{color:#f472b6}
.sidebar nav a{display:block;color:var(--side-ink);padding:10px 12px;border-radius:10px;margin-bottom:4px;font-weight:600}
.sidebar nav a:hover{background:#2c2742;text-decoration:none;color:#fff}
.sidebar nav a.on{background:var(--brand);color:#fff}
.side-foot{margin-top:auto;border-top:1px solid #33304a;padding-top:14px}
.me{display:flex;gap:10px;align-items:center;color:#fff;margin-bottom:10px}
.me small{color:#a49eb9}
.logout{color:#f9a8d4;font-weight:600}
.main{flex:1;min-width:0}
.topbar{display:flex;align-items:center;gap:14px;padding:16px 28px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.topbar h1{margin:0;font-size:20px}
.today{margin-left:auto;color:var(--muted);font-size:13px}
.burger{display:none;background:none;border:0;font-size:22px;cursor:pointer}
.content{padding:24px 28px 60px;max-width:1500px}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:20px}
.card h2{font-size:16px;margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.card h2 small{font-weight:500}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g21{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:20px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:15px 16px;border-left:5px solid var(--line);color:inherit;display:block}
a.kpi:hover{text-decoration:none;box-shadow:0 4px 14px rgba(31,27,46,.08)}
.kpi-label{font-size:12px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.kpi-value{font-size:30px;font-weight:800;line-height:1.2;margin:2px 0}
.kpi-sub{font-size:12px;color:var(--muted)}
.kpi.green{border-left-color:#22c55e}.kpi.red{border-left-color:#ef4444}.kpi.amber{border-left-color:#f59e0b}.kpi.blue{border-left-color:#3b82f6}.kpi.brand{border-left-color:var(--brand)}

/* alert banner */
.alert{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:var(--radius);margin-bottom:20px;font-weight:600}
.alert.red{background:var(--red-soft);color:var(--red);border:1px solid #fecaca}
.alert.green{background:var(--green-soft);color:var(--green);border:1px solid #bbf7d0}
.alert .btn{margin-left:auto}
.checklist{margin:0;padding-left:18px}
.checklist li{margin:4px 0}

/* tables */
.tbl-wrap{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse}
.tbl th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);padding:9px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:11px 12px;border-bottom:1px solid #f1eef6;vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:hover{background:#faf8fd}
.tbl .num{text-align:right;font-variant-numeric:tabular-nums}
.tbl tr.clickable{cursor:pointer}
.big{font-size:18px;font-weight:800}
.big.red{color:var(--red)}
.empty{padding:26px;text-align:center;color:var(--muted)}
.leadcell{display:flex;align-items:center;gap:10px;min-width:170px}
.snip{max-width:260px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--muted)}

/* badges + avatar */
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}
.b-green{background:var(--green-soft);color:var(--green)}.b-red{background:var(--red-soft);color:var(--red)}
.b-amber{background:var(--amber-soft);color:var(--amber)}.b-blue{background:var(--blue-soft);color:var(--blue)}
.b-gray{background:var(--gray-soft);color:var(--gray)}.b-brand{background:var(--brand-soft);color:var(--brand-dark)}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dark);display:inline-flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0;overflow:hidden}
.avatar.sm{width:34px;height:34px;background:#3b3558;color:#fff}
.avatar img{width:100%;height:100%;object-fit:cover}
.avatar.lg{width:56px;height:56px;font-size:22px}
.flags span{display:inline-block;width:22px;height:22px;border-radius:6px;text-align:center;line-height:22px;font-size:11px;font-weight:800;margin-right:3px;background:#eceaf1;color:#a29db5}
.flags span.on{background:var(--green-soft);color:var(--green)}

/* forms + buttons */
.field{display:block;margin-bottom:14px;font-weight:600;font-size:13px}
.field input,.field select,.field textarea,.inp{display:block;width:100%;margin-top:5px;padding:10px 12px;border:1px solid #d9d3e6;border-radius:10px;font:inherit;background:#fff;color:var(--ink)}
.field textarea{min-height:90px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus,.inp:focus{outline:2px solid #f9a8d4;border-color:var(--brand)}
.help{font-weight:400;color:var(--muted);font-size:12px;margin-top:4px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.btn{display:inline-block;padding:9px 16px;border-radius:10px;border:1px solid #d9d3e6;background:#fff;color:var(--ink);font-weight:700;cursor:pointer;font:inherit;font-weight:700}
.btn:hover{text-decoration:none;background:#f6f3fb}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-danger{background:#fff;border-color:#fca5a5;color:var(--red)}
.btn-sm{padding:5px 11px;font-size:13px}
.btn-block{width:100%}
.check{display:flex;align-items:center;gap:8px;margin:7px 0;font-weight:600}
.check input{width:auto;margin:0}
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:14px}
.filters .inp{width:auto;margin:0;min-width:150px}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tab{padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink);font-weight:700;font-size:13px}
.tab:hover{text-decoration:none;background:#faf5ff}
.tab.on{background:var(--brand);border-color:var(--brand);color:#fff}
.tab b{opacity:.75;margin-left:4px}
.pager{display:flex;gap:6px;align-items:center;margin-top:14px;flex-wrap:wrap}
.flash{padding:11px 14px;border-radius:10px;margin-bottom:16px;font-weight:600}
.f-ok{background:var(--green-soft);color:var(--green)}.f-err{background:var(--red-soft);color:var(--red)}.f-info{background:var(--blue-soft);color:var(--blue)}

/* funnel + bars */
.funnel .f-row{display:grid;grid-template-columns:150px 1fr 90px;gap:10px;align-items:center;margin:9px 0;font-weight:600}
.bar{height:14px;background:#efeaf6;border-radius:999px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,#be185d,#f472b6);border-radius:999px}
.bar.green i{background:linear-gradient(90deg,#15803d,#4ade80)}
.bar.red i{background:linear-gradient(90deg,#b91c1c,#f87171)}
.f-row small{text-align:right}

/* 14-day chart */
.chart{display:flex;align-items:flex-end;gap:6px;height:170px;padding-top:10px}
.chart .col{flex:1;display:flex;flex-direction:column;align-items:center;height:100%;justify-content:flex-end;min-width:0}
.chart .pair{display:flex;align-items:flex-end;gap:2px;height:calc(100% - 20px);width:100%;justify-content:center}
.chart .b{width:42%;max-width:16px;border-radius:5px 5px 0 0;min-height:2px}
.chart .b.leads{background:#be185d}.chart .b.calls{background:#3b82f6}
.chart .lbl{font-size:10.5px;color:var(--muted);margin-top:4px;white-space:nowrap}
.legend{display:flex;gap:16px;font-size:12.5px;color:var(--muted);margin-top:8px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px}

/* donut */
.donut-wrap{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.donut{width:112px;height:112px;border-radius:50%;position:relative;flex-shrink:0}
.donut:after{content:"";position:absolute;inset:22px;background:#fff;border-radius:50%}
.donut-c{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:2;font-weight:800;font-size:20px;line-height:1}
.donut-c small{font-size:10.5px;font-weight:600}
.dlegend div{margin:4px 0;font-weight:600}
.dlegend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:7px}

/* chat */
.chatbox{background:#faf8fd;border:1px solid var(--line);border-radius:var(--radius);padding:16px;height:520px;overflow-y:auto;display:flex;flex-direction:column;gap:10px}
.msg{max-width:78%;padding:9px 13px;border-radius:16px;white-space:pre-wrap;word-wrap:break-word;font-size:14px}
.msg small{display:block;margin-top:4px;font-size:11px;opacity:.7}
.msg.in{background:#fff;border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.out{background:#fce7f3;align-self:flex-end;border-bottom-right-radius:4px}
.msg.followup{background:#ede9fe}
.msg.agent{background:#dbeafe}
.msg.failed{background:#fee2e2;border:1px dashed #f87171}
.kv{display:grid;grid-template-columns:120px 1fr;gap:8px 12px;margin:0}
.kv dt{color:var(--muted);font-weight:600}.kv dd{margin:0;word-break:break-word}
.logrow{padding:9px 0;border-bottom:1px solid #f1eef6}
.logrow:last-child{border:0}

/* auth */
body.auth{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px;background:linear-gradient(135deg,#1f1b2e,#4a1d3d)}
.auth-card{background:#fff;border-radius:18px;padding:32px;width:100%;max-width:400px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.auth-card.wide{max-width:640px}
.brand-lg{font-size:26px;font-weight:800;margin-bottom:6px}
.steps li{margin:12px 0}

@media (max-width:980px){
  .g2,.g3,.g21{grid-template-columns:1fr}
  .sidebar{position:fixed;left:-250px;top:0;z-index:20;transition:left .2s}
  .sidebar.open{left:0}
  .burger{display:block}
  .content{padding:16px 14px 50px}
  .topbar{padding:12px 14px}
  .today{display:none}
  .row2{grid-template-columns:1fr}
  .funnel .f-row{grid-template-columns:110px 1fr 70px}
  .chatbox{height:420px}
}