:root{
      --bg:#f5f7fb;
      --surface:#ffffff;
      --surface-2:#f8fafc;
      --sidebar:#132d62;
      --sidebar-2:#0f2550;
      --text:#16284f;
      --muted:#6f7b91;
      --line:#e5eaf2;
      --primary:#f5a300;
      --primary-2:#df9400;
      --primary-soft:#fff4dd;
      --success:#1f8f6a;
      --success-soft:#eaf8f2;
      --warning:#d99615;
      --warning-soft:#fff4dc;
      --danger:#d84848;
      --danger-soft:#fff0f0;
      --violet:#2c4f90;
      --navy:#132d62;
      --navy-soft:#e9eef9;
      --shadow:0 18px 50px rgba(19, 45, 98, .08);
      --shadow-sm:0 8px 22px rgba(19, 45, 98, .06);
      --radius:18px;
      --radius-sm:12px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 92% 6%, rgba(245,163,0,.10), transparent 23%),
        var(--bg);
    }
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    a{text-decoration:none;color:inherit}
    .hidden{display:none!important}
    .app{display:grid;grid-template-columns:278px minmax(0,1fr);min-height:100vh}
    .sidebar{
      position:sticky;top:0;height:100vh;
      padding:24px 18px;
      background:
        radial-gradient(circle at 18% 8%, rgba(245,163,0,.28), transparent 30%),
        linear-gradient(180deg,var(--sidebar),var(--sidebar-2) 78%);
      color:#dce5f7;
      display:flex;flex-direction:column;z-index:30;
    }
    .brand{padding:0 10px 24px}
    .brand-panel{background:rgba(255,255,255,.96);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:14px 14px 12px;box-shadow:0 18px 34px rgba(7,15,35,.18)}
    .brand-logo{width:100%;height:auto;display:block;object-fit:contain;filter:drop-shadow(0 8px 18px rgba(19,45,98,.12))}
    .brand-meta{margin-top:10px;padding-top:10px;border-top:1px solid rgba(19,45,98,.08)}
    .brand strong{display:block;color:var(--navy);font-size:15px;letter-spacing:-.02em}
    .brand span{display:block;font-size:10px;color:#6f7b91;margin-top:3px;letter-spacing:.08em;text-transform:uppercase}
    .nav-label{font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:#677794;padding:0 12px;margin:12px 0 8px}
    .nav{display:flex;flex-direction:column;gap:5px}
    .nav-btn{
      border:0;background:transparent;color:#aebbd1;width:100%;
      display:flex;align-items:center;gap:12px;padding:12px 13px;border-radius:12px;text-align:left;
      transition:.2s ease;position:relative
    }
    .nav-btn svg{width:19px;height:19px;stroke-width:1.8;flex:0 0 auto}
    .nav-btn:hover{background:rgba(255,255,255,.055);color:#fff}
    .nav-btn.active{
      background:linear-gradient(90deg,rgba(245,163,0,.22),rgba(245,163,0,.08));
      color:#fff
    }
    .nav-btn.active:before{
      content:"";position:absolute;left:-18px;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--primary)
    }
    .sidebar-spacer{flex:1}
    .sync-card{
      border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.045);
      border-radius:16px;padding:14px;margin-top:18px
    }
    .sync-head{display:flex;align-items:center;gap:9px;color:#fff;font-size:12px;font-weight:700}
    .sync-dot{width:8px;height:8px;border-radius:50%;background:#31cc89;box-shadow:0 0 0 5px rgba(49,204,137,.10)}
    .sync-card p{font-size:11px;line-height:1.5;color:#8090aa;margin:10px 0 0}
    .main{min-width:0}
    .topbar{
      height:82px;background:rgba(255,255,255,.78);backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(229,234,242,.9);
      display:flex;align-items:center;gap:18px;justify-content:space-between;
      padding:0 34px;position:sticky;top:0;z-index:20
    }
    .topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
    .menu-btn{display:none}
    .top-title h1{font-size:21px;line-height:1.1;margin:0;letter-spacing:-.03em}
    .top-title p{font-size:12px;color:var(--muted);margin:5px 0 0}
    .top-actions{display:flex;align-items:center;gap:10px}
    .icon-btn{
      width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
      background:var(--surface);display:grid;place-items:center;color:#59657a;position:relative;
      box-shadow:0 2px 7px rgba(15,23,42,.02)
    }
    .icon-btn svg{width:19px;height:19px}
    .notification-dot{
      position:absolute;right:9px;top:8px;width:7px;height:7px;border-radius:50%;
      background:var(--danger);border:2px solid white
    }
    .profile{
      display:flex;align-items:center;gap:10px;padding:5px 9px 5px 5px;
      border:1px solid var(--line);background:var(--surface);border-radius:14px
    }
    .avatar{
      width:34px;height:34px;border-radius:10px;background:linear-gradient(145deg,#fff2d1,#ffd47b);
      color:var(--navy);font-weight:800;display:grid;place-items:center;font-size:12px
    }
    .profile strong{font-size:12px;display:block}
    .profile span{font-size:10px;color:var(--muted);display:block;margin-top:1px}
    .content{padding:28px 34px 42px;max-width:1660px;margin:0 auto}
    .view{display:none;animation:fade .22s ease}
    .view.active{display:block}
    @keyframes fade{from{opacity:.2;transform:translateY(5px)}to{opacity:1;transform:none}}
    .hero-row{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:22px}
    .eyebrow{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:var(--primary);margin-bottom:7px}
    .hero-row h2{font-size:27px;letter-spacing:-.04em;margin:0}
    .hero-row p{color:var(--muted);font-size:13px;margin:7px 0 0;max-width:680px}
    .btn{
      border:0;border-radius:12px;padding:11px 15px;font-weight:750;font-size:12px;
      display:inline-flex;align-items:center;gap:8px;justify-content:center;transition:.18s ease;white-space:nowrap
    }
    .btn svg{width:17px;height:17px}
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(37,87,214,.23)}
    .btn-primary:hover{background:var(--primary-2);transform:translateY(-1px)}
    .btn-secondary{background:#fff;border:1px solid var(--line);color:#445066}
    .btn-secondary:hover{background:#f8fafc}
    .btn-danger{background:var(--danger-soft);color:var(--danger)}
    .btn-sm{padding:8px 10px;border-radius:9px;font-size:11px}
    .stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:16px}
    .stat-card,.card{
      background:rgba(255,255,255,.92);border:1px solid rgba(226,232,240,.9);
      border-radius:var(--radius);box-shadow:var(--shadow-sm)
    }
    .stat-card{padding:18px 18px 17px;position:relative;overflow:hidden}
    .stat-card:after{
      content:"";position:absolute;width:100px;height:100px;border-radius:50%;
      right:-38px;top:-42px;background:var(--primary-soft)
    }
    .stat-top{display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1}
    .stat-icon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary)}
    .stat-icon.success{background:var(--success-soft);color:var(--success)}
    .stat-icon.warning{background:var(--warning-soft);color:var(--warning)}
    .stat-icon.danger{background:var(--danger-soft);color:var(--danger)}
    .stat-icon svg{width:18px;height:18px}
    .trend{font-size:10px;font-weight:800;padding:5px 7px;border-radius:999px;background:var(--success-soft);color:var(--success)}
    .stat-card h3{font-size:25px;margin:16px 0 4px;letter-spacing:-.04em}
    .stat-card p{margin:0;color:var(--muted);font-size:11px}
    .dashboard-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(330px,.8fr);gap:16px;margin-bottom:16px}
    .card{padding:20px}
    .card-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
    .card-head h3{font-size:15px;letter-spacing:-.02em;margin:0}
    .card-head p{font-size:11px;color:var(--muted);margin:4px 0 0}
    .select-compact{
      border:1px solid var(--line);border-radius:10px;background:#fff;padding:8px 10px;color:#5b6678;font-size:11px;outline:none
    }
    .chart{
      height:250px;display:flex;align-items:flex-end;gap:12px;padding:18px 8px 28px 38px;
      position:relative;border-bottom:1px solid var(--line)
    }
    .grid-lines{position:absolute;inset:12px 0 28px 0;display:flex;flex-direction:column;justify-content:space-between;pointer-events:none}
    .grid-lines i{display:block;border-top:1px dashed #e8edf4}
    .bar-group{height:100%;flex:1;display:flex;gap:5px;align-items:flex-end;position:relative;z-index:2}
    .bar{flex:1;border-radius:7px 7px 2px 2px;min-width:8px;transition:.25s ease}
    .bar:hover{filter:brightness(.96);transform:translateY(-2px)}
    .bar.expected{background:#dce5fb}
    .bar.collected{background:linear-gradient(180deg,#4d79e4,#2557d6)}
    .bar-label{position:absolute;bottom:-22px;left:50%;transform:translateX(-50%);font-size:10px;color:#7b879b}
    .chart-legend{display:flex;gap:18px;margin-top:14px;font-size:10px;color:#707c90}
    .legend-item{display:flex;align-items:center;gap:7px}
    .legend-dot{width:8px;height:8px;border-radius:3px;background:#dce5fb}
    .legend-dot.primary{background:#3564d9}
    .donut-wrap{display:grid;place-items:center;margin:8px 0 16px}
    .donut{
      width:160px;height:160px;border-radius:50%;
      background:conic-gradient(var(--success) 0 58%, var(--warning) 58% 82%, var(--danger) 82% 100%);
      display:grid;place-items:center;position:relative
    }
    .donut:after{content:"";width:112px;height:112px;border-radius:50%;background:white;position:absolute}
    .donut-center{position:relative;z-index:1;text-align:center}
    .donut-center strong{display:block;font-size:27px;letter-spacing:-.04em}
    .donut-center span{display:block;font-size:10px;color:var(--muted);margin-top:2px}
    .status-list{display:grid;gap:10px}
    .status-item{display:flex;align-items:center;gap:10px;font-size:11px}
    .status-item .dot{width:9px;height:9px;border-radius:50%}
    .status-item strong{margin-left:auto;font-size:11px}
    .lower-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(340px,.9fr);gap:16px}
    .table-wrap{overflow:auto;margin:0 -4px}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th{
      text-align:left;font-size:9px;text-transform:uppercase;letter-spacing:.1em;color:#8a95a6;
      font-weight:800;padding:10px 12px;border-bottom:1px solid var(--line)
    }
    td{font-size:11px;padding:13px 12px;border-bottom:1px solid #eef2f6;vertical-align:middle}
    tr:last-child td{border-bottom:0}
    tbody tr:hover{background:#fbfcfe}
    .student-cell{display:flex;align-items:center;gap:10px}
    .student-avatar{
      width:32px;height:32px;border-radius:10px;background:#edf2fb;color:#4b5f85;
      display:grid;place-items:center;font-size:10px;font-weight:800;flex:0 0 auto
    }
    .student-cell strong{display:block;font-size:11px}
    .student-cell span{display:block;color:var(--muted);font-size:9px;margin-top:2px}
    .badge{
      display:inline-flex;align-items:center;gap:6px;padding:5px 8px;border-radius:999px;font-size:9px;font-weight:800
    }
    .badge:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
    .badge.paid{background:var(--success-soft);color:var(--success)}
    .badge.pending{background:var(--warning-soft);color:#b67508}
    .badge.overdue{background:var(--danger-soft);color:var(--danger)}
    .badge.partial{background:#f0edff;color:var(--violet)}
    .amount{font-weight:800;color:#24324a}
    .muted{color:var(--muted)}
    .action-menu{display:flex;gap:5px}
    .table-icon{
      width:30px;height:30px;border:1px solid var(--line);border-radius:9px;background:white;display:grid;place-items:center;color:#6b768a
    }
    .table-icon:hover{border-color:#bfcbdf;color:var(--primary);background:var(--primary-soft)}
    .table-icon svg{width:14px;height:14px}
    .activity-list{display:grid;gap:4px}
    .activity{
      display:grid;grid-template-columns:36px 1fr auto;gap:10px;align-items:center;padding:10px 0;border-bottom:1px solid #eef2f6
    }
    .activity:last-child{border-bottom:0}
    .activity-icon{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary)}
    .activity-icon.success{background:var(--success-soft);color:var(--success)}
    .activity-icon.warning{background:var(--warning-soft);color:var(--warning)}
    .activity-icon svg{width:15px;height:15px}
    .activity strong{font-size:10px;display:block}
    .activity span{font-size:9px;color:var(--muted);display:block;margin-top:3px;line-height:1.4}
    .activity time{font-size:9px;color:#9aa4b5;white-space:nowrap}
    .toolbar{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);padding:12px;
      border-radius:16px;margin-bottom:14px;box-shadow:var(--shadow-sm)
    }
    .search-box{position:relative;flex:1;min-width:240px}
    .search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:#8994a7}
    .search-box input,.field input,.field select,.field textarea{
      width:100%;border:1px solid var(--line);background:#fff;border-radius:11px;outline:none;
      padding:10px 12px;color:var(--text);transition:.18s ease
    }
    .search-box input{padding-left:37px;font-size:11px}
    .search-box input:focus,.field input:focus,.field select:focus,.field textarea:focus{border-color:#9db5f2;box-shadow:0 0 0 3px rgba(37,87,214,.08)}
    .filter-select{border:1px solid var(--line);border-radius:11px;padding:10px 12px;background:#fff;color:#586478;font-size:11px;outline:none}
    .full-card{padding:0;overflow:hidden}
    .full-card .table-head{padding:17px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:15px}
    .full-card .table-wrap{margin:0}
    .full-card table{min-width:980px}
    .progress{height:6px;background:#edf1f6;border-radius:99px;overflow:hidden;min-width:100px}
    .progress > i{height:100%;display:block;background:var(--primary);border-radius:99px}
    .progress-label{font-size:9px;color:var(--muted);margin-top:5px}
    .message-layout{display:grid;grid-template-columns:minmax(360px,.85fr) minmax(0,1.35fr);gap:16px}
    .message-card{padding:0;overflow:hidden}
    .message-card-head{padding:18px 20px;border-bottom:1px solid var(--line)}
    .message-card-head h3{font-size:14px;margin:0}
    .message-card-head p{font-size:10px;color:var(--muted);margin:5px 0 0}
    .template-list{padding:8px}
    .template{
      padding:13px;border-radius:12px;display:flex;gap:11px;align-items:flex-start;cursor:pointer;border:1px solid transparent;transition:.15s ease
    }
    .template:hover{background:#f8faff}
    .template.active{background:var(--primary-soft);border-color:#d8e3ff}
    .template-icon{width:34px;height:34px;flex:0 0 auto;border-radius:10px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:var(--primary)}
    .template-icon svg{width:15px;height:15px}
    .template strong{font-size:11px;display:block}
    .template span{font-size:9px;color:var(--muted);line-height:1.45;display:block;margin-top:4px}
    .composer{padding:20px}
    .channel-row{display:flex;gap:8px;margin-bottom:16px}
    .channel{
      border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;font-size:10px;font-weight:800;color:#68758b;display:flex;align-items:center;gap:7px
    }
    .channel.active{border-color:#b8c9f5;background:var(--primary-soft);color:var(--primary)}
    .channel svg{width:14px;height:14px}
    .field{margin-bottom:14px}
    .field label{display:block;font-size:10px;font-weight:800;color:#465268;margin-bottom:7px}
    .field input,.field select,.field textarea{font-size:11px}
    .field textarea{resize:vertical;min-height:155px;line-height:1.6}
    .token-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
    .token{padding:5px 7px;border-radius:7px;background:#f0f4fa;color:#67758b;font-size:9px;cursor:pointer}
    .composer-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:18px}
    .composer-hint{font-size:9px;color:var(--muted)}
    .automation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .automation-card{padding:18px}
    .automation-card .switch-row{display:flex;align-items:center;justify-content:space-between;gap:15px}
    .automation-card h4{font-size:12px;margin:0}
    .automation-card p{font-size:10px;color:var(--muted);line-height:1.55;margin:9px 0 14px}
    .switch{position:relative;width:42px;height:24px;display:inline-block;flex:0 0 auto}
    .switch input{opacity:0;width:0;height:0}
    .slider{position:absolute;inset:0;background:#dbe1ea;border-radius:999px;transition:.2s}
    .slider:before{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;border-radius:50%;background:#fff;box-shadow:0 1px 5px rgba(0,0,0,.18);transition:.2s}
    .switch input:checked + .slider{background:var(--primary)}
    .switch input:checked + .slider:before{transform:translateX(18px)}
    .automation-meta{display:flex;gap:7px;flex-wrap:wrap}
    .chip{padding:5px 8px;border:1px solid var(--line);border-radius:8px;color:#6c778a;font-size:9px;background:#fbfcfe}
    .settings-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}
    .settings-section{padding:20px}
    .settings-section h3{font-size:14px;margin:0 0 3px}
    .settings-section > p{font-size:10px;color:var(--muted);margin:0 0 18px;line-height:1.5}
    .inline-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .connection{
      display:flex;align-items:center;gap:12px;border:1px solid var(--line);padding:12px;border-radius:13px;margin-bottom:10px
    }
    .connection-icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:var(--surface-2);color:#46556d}
    .connection-icon svg{width:18px;height:18px}
    .connection strong{display:block;font-size:11px}
    .connection span{display:block;font-size:9px;color:var(--muted);margin-top:3px}
    .connection .btn{margin-left:auto}
    .modal{
      position:fixed;inset:0;background:rgba(7,13,25,.48);backdrop-filter:blur(4px);
      display:none;align-items:center;justify-content:center;padding:20px;z-index:100
    }
    .modal.show{display:flex}
    .modal-box{
      width:min(640px,100%);max-height:92vh;overflow:auto;background:#fff;border-radius:20px;box-shadow:0 30px 90px rgba(0,0,0,.22);
      border:1px solid rgba(255,255,255,.6)
    }
    .modal-head{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line)}
    .modal-head h3{margin:0;font-size:16px}
    .modal-body{padding:20px 22px}
    .modal-foot{padding:15px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:9px}
    .toast-wrap{position:fixed;right:22px;bottom:22px;display:grid;gap:10px;z-index:150}
    .toast{
      min-width:290px;max-width:390px;background:#111a2c;color:#fff;border-radius:13px;padding:12px 14px;
      display:grid;grid-template-columns:30px 1fr;gap:9px;box-shadow:0 20px 50px rgba(0,0,0,.22);animation:toastIn .25s ease
    }
    @keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
    .toast-icon{width:28px;height:28px;border-radius:8px;background:rgba(245,163,0,.14);color:var(--primary);display:grid;place-items:center}
    .toast-icon svg{width:14px;height:14px}
    .toast strong{display:block;font-size:10px}
    .toast span{display:block;color:#a8b3c5;font-size:9px;line-height:1.45;margin-top:3px}
    .empty{padding:34px;text-align:center;color:var(--muted);font-size:11px}
    .mobile-overlay{display:none}

    @media (max-width:1180px){
      .stats-grid{grid-template-columns:repeat(2,1fr)}
      .dashboard-grid,.lower-grid,.message-layout{grid-template-columns:1fr}
      .automation-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:900px){
      .app{grid-template-columns:1fr}
      .sidebar{
        position:fixed;left:0;top:0;bottom:0;width:278px;transform:translateX(-105%);
        transition:.25s ease;box-shadow:20px 0 50px rgba(0,0,0,.18)
      }
      .sidebar.open{transform:none}
      .mobile-overlay{display:block;position:fixed;inset:0;background:rgba(8,14,25,.42);z-index:25;opacity:0;pointer-events:none;transition:.2s}
      .mobile-overlay.show{opacity:1;pointer-events:auto}
      .menu-btn{display:grid}
      .content{padding:22px}
      .topbar{padding:0 22px}
      .settings-grid{grid-template-columns:1fr}
    }
    @media (max-width:640px){
      .topbar{height:72px}
      .profile div:last-child{display:none}
      .content{padding:18px 14px 30px}
      .hero-row{align-items:flex-start;flex-direction:column}
      .hero-row h2{font-size:23px}
      .stats-grid{grid-template-columns:1fr}
      .automation-grid{grid-template-columns:1fr}
      .inline-fields{grid-template-columns:1fr}
      .top-title p{display:none}
      .toolbar{align-items:stretch}
      .search-box{min-width:100%}
      .toolbar .filter-select,.toolbar .btn{flex:1}
      .message-layout{grid-template-columns:1fr}
      .composer-actions{align-items:stretch;flex-direction:column}
      .composer-actions .btn{width:100%}
    }

    @media (prefers-reduced-motion: reduce){
      *,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    }