:root{
    --bg:#f4f5f7; --card:#ffffff; --ink:#1f2430; --muted:#6b7280;
    --border:#e3e5ea; --accent:#2f6fed; --accent-ink:#ffffff;
    --pending:#fbbf24; --pending-bg:#fff7e0;
    --approved:#22c55e; --approved-bg:#e7f9ee;
    --denied:#ef4444; --denied-bg:#fdeaea;
    --weekend:#eef0f4;
  }
  *{box-sizing:border-box;}
  body{margin:0;font-family:"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--ink);}
  header{background:var(--card);border-bottom:1px solid var(--border);padding:16px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
  header h1{font-size:19px;margin:0;}
  header .sub{color:var(--muted);font-size:13px;}
  .container{max-width:1200px;margin:0 auto;padding:20px;}
  .toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:16px;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px;}
  .toolbar label{font-size:13px;color:var(--muted);margin-right:6px;}
  select,button,input{font-family:inherit;font-size:14px;padding:8px 10px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--ink);}
  button{cursor:pointer;background:var(--accent);color:var(--accent-ink);border:none;font-weight:600;}
  button.secondary{background:#fff;color:var(--ink);border:1px solid var(--border);}
  button.danger{background:var(--denied);}
  button:disabled{opacity:.5;cursor:not-allowed;}
  .tabs{display:flex;gap:8px;margin-bottom:16px;}
  .tabs button{background:#fff;color:var(--ink);border:1px solid var(--border);font-weight:600;}
  .tabs button.active{background:var(--accent);color:#fff;border-color:var(--accent);}
  .grid-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-bottom:20px;}
  .card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px;}
  .card .num{font-size:26px;font-weight:700;}
  .card .lbl{font-size:12px;color:var(--muted);}
  .legend{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;margin-bottom:14px;}
  .legend span{display:inline-flex;align-items:center;gap:6px;}
  .dot{width:12px;height:12px;border-radius:3px;display:inline-block;}
  .year-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;}
  .month{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:10px;}
  .month h3{margin:4px 0 8px;font-size:14px;text-align:center;text-transform:capitalize;}
  .dow{display:grid;grid-template-columns:repeat(7,1fr);font-size:10px;color:var(--muted);text-align:center;margin-bottom:2px;}
  .days{display:grid;grid-template-columns:repeat(7,1fr);gap:3px;}
  .day{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:12px;border-radius:5px;cursor:pointer;background:#fafbfc;border:1px solid transparent;user-select:none;}
  .day .dnum{line-height:1;}
  .day .dots{display:flex;gap:2px;flex-wrap:wrap;justify-content:center;max-width:90%;}
  .day .dot-mini{width:6px;height:6px;border-radius:50%;flex-shrink:0;}
  .employee-legend{display:flex;gap:8px;flex-wrap:wrap;font-size:12px;margin-bottom:14px;align-items:center;}
  .employee-legend span{display:inline-flex;align-items:center;gap:5px;}
  .employee-legend .dot-mini{width:10px;height:10px;border-radius:50%;}
  .filter-chip{padding:4px 10px;border-radius:20px;border:1px solid var(--border);background:#fff;transition:opacity .15s;}
  .filter-chip:hover{border-color:var(--accent);}
  .filter-chip.active{border-color:var(--accent);}
  .filter-all{padding:4px 8px;color:var(--accent);font-weight:600;}
  .day.empty{visibility:hidden;cursor:default;}
  .day.weekend{background:var(--weekend);}
  .day.holiday{background:var(--denied-bg);color:#991b1b;font-weight:700;border-color:var(--denied);cursor:default;}
  .day.selected{outline:2px solid var(--accent);font-weight:700;}
  .day.pending{background:var(--pending-bg);color:#92650a;border-color:var(--pending);}
  .day.approved{background:var(--approved-bg);color:#166534;border-color:var(--approved);}
  .day.denied{background:var(--denied-bg);color:#991b1b;border-color:var(--denied);text-decoration:line-through;}
  .day.past{opacity:.45;}
  table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--border);border-radius:10px;overflow:hidden;}
  th,td{padding:10px 12px;text-align:left;font-size:13px;border-bottom:1px solid var(--border);}
  th{background:#fafbfc;color:var(--muted);font-weight:600;}
  tr:last-child td{border-bottom:none;}
  .badge{padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600;}
  .badge.pending{background:var(--pending-bg);color:#92650a;}
  .badge.approved{background:var(--approved-bg);color:#166534;}
  .badge.denied{background:var(--denied-bg);color:#991b1b;}
  .actions button{padding:5px 10px;font-size:12px;margin-right:4px;}
  .empty-state{color:var(--muted);text-align:center;padding:30px;font-size:14px;}
  .panel{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:16px;margin-bottom:16px;}
  .panel h2{margin-top:0;font-size:16px;}
  .row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:10px;}
  .row label{font-size:13px;color:var(--muted);}
  .flex-between{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;}
  #loginScreen{position:fixed;inset:0;background:var(--bg);display:flex;align-items:center;justify-content:center;z-index:50;}
  #passModal{position:fixed;inset:0;background:rgba(31,36,48,0.5);display:none;align-items:center;justify-content:center;z-index:60;}
  .login-box{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:32px;width:320px;}
  .login-box h2{margin-top:0;font-size:18px;}
  .login-box .sub{color:var(--muted);font-size:13px;margin-bottom:18px;}
  .login-box label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px;margin-top:12px;}
  .login-box select, .login-box input{width:100%;}
  .login-box button{width:100%;margin-top:20px;padding:10px;}
  .login-error{color:var(--denied);font-size:13px;margin-top:10px;display:none;}
  .config-note{font-size:12px;color:var(--muted);}