:root{
    --bg:#f7fbff; --card:#ffffff; --primary:#2563eb; --primary-600:#1d4ed8;
    --accent:#10b981; --warn:#ef4444; --muted:#6b7280; --ring:#c7d2fe; --text:#0f172a;
  }
  *{box-sizing:border-box}
  html,body{height:100%}
  body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
  header{position:sticky;top:0;z-index:50;background:linear-gradient(90deg,var(--primary),#22d3ee);color:#fff;padding:10px 16px;box-shadow:0 2px 10px rgba(0,0,0,.08)}
  header .title{font-weight:800;letter-spacing:.2px}
  .container{max-width:1100px;margin:16px auto;padding:0 16px}
  nav.tabs{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
  .tab-btn{border:none;background:var(--card);color:var(--text);padding:10px 14px;border-radius:999px;box-shadow:0 1px 3px rgba(0,0,0,.06);cursor:pointer}
  .tab-btn.active{background:var(--primary);color:#fff}
  .grid{display:grid;gap:12px}
  @media(min-width:860px){.grid-cols-2{grid-template-columns:1fr 1fr}}
  .card{background:var(--card);border-radius:14px;padding:14px;box-shadow:0 2px 10px rgba(0,0,0,.04)}
  h2{margin:0 0 10px 0;font-size:18px;display: flex;align-items: center;justify-content: space-between}
  h3{margin:6px 0;font-size:16px}
  label{font-size:14px;color:var(--muted);display:block;margin-bottom:6px}
  input[type=text],input[type=number],input[type=date],textarea,select{width:100%;padding:9px 10px;border:1px solid #e6eef9;border-radius:10px;background:#fff;outline:none}
  textarea{min-height:72px}
  input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--ring)}
  .row{display:flex;gap:8px;flex-wrap:wrap}
  .row>div{flex:1 1 180px}
  .btn{display:inline-flex;align-items:center;gap:8px;border:none;border-radius:10px;padding:9px 12px;background:var(--primary);color:#fff;cursor:pointer}
  .btn.secondary{background:#0ea5e9}
  .btn.ghost{background:#eef2ff;color:#1e3a8a}
  .btn.warn{background:var(--warn)}
  .btn.success{background:var(--accent)}
  .btn:disabled{opacity:.5;cursor:not-allowed}
  .list{display:flex;flex-direction:column;gap:8px}
  .item{display:flex;align-items:center;justify-content:space-between;background:#fff;border:1px solid #eef6ff;border-radius:12px;padding:10px}
  .muted{color:var(--muted)}
  .pill{background:#eaf2ff;color:#1e3a8a;border-radius:999px;padding:4px 10px;font-size:12px}
  .toolbar{display:flex;gap:8px;flex-wrap:wrap;justify-content: flex-end}
  .toolbar-backup{display:flex;gap:8px;flex-wrap:wrap}
  details{background:#f8fafc;border:1px solid #eef6ff;border-radius:12px;padding:8px}
  summary{cursor:pointer;font-weight:600;padding:6px}
  .right{margin-left:auto}
  .kpi{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
  @media(min-width:720px){.kpi{grid-template-columns:repeat(5,1fr)}}
  .kpi .card{display:flex;flex-direction:column;gap:6px}
  .kpi .num{font-size:22px;font-weight:800}
  .table{width:100%;border-collapse:collapse}
  .table th,.table td{border-bottom:1px solid #e5eefb;padding:8px;text-align:left}
  .table th{font-size:12px;color:var(--muted);font-weight:700}
  .modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:center;justify-content:center;padding:16px;z-index:60}
  .modal{background:#fff;border-radius:16px;max-width:920px;width:100%;padding:16px;max-height:90vh;overflow:auto;box-shadow:0 10px 30px rgba(0,0,0,.25)}
  .modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
  .close-x{background:#f1f5f9;border:none;border-radius:8px;padding:6px 10px;cursor:pointer}
  .tag{font-size:12px;border:1px solid #e9f2ff;border-radius:999px;padding:2px 8px;background:#fafcff}
  .hint{font-size:12px;color:var(--muted)}
  .checkbox-row{display:flex;flex-wrap:wrap;gap:10px}
  .sr-only{position:absolute;left:-9999px}
  footer{padding:16px;color:var(--muted);text-align:center;margin-top:12px}
  .pager{display:flex;gap:6px;align-items:center;justify-content:center;margin-top:8px}
  .small{font-size:13px}
  .muted-2{color:#94a3b8}
  /* responsive minor fixes */
  @media(max-width:600px){
    header .title{font-size:16px}
    .tab-btn{padding:8px 10px;font-size:13px}
    .row>div{flex-basis:100%}
  }