:root{--bg:#f4f6fb;--card:#fff;--ink:#0f172a;--muted:#64748b;--nav:#111827;--primary:#4f46e5;--border:#e5e7eb}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--ink)}
nav{background:var(--nav);padding:12px 16px;display:flex;gap:14px;align-items:center}
nav a{color:#fff;text-decoration:none;font-weight:800}
nav a.active{color:#a5b4fc}
nav .spacer{flex:1}
nav .user{color:#9ca3af;font-size:14px}
.container{padding:18px;margin:0 auto;}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px;margin-bottom:14px;box-shadow:0 6px 18px rgba(15,23,42,.06)}
h2{margin:0 0 10px 0;font-size:18px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.input,select,textarea{padding:9px 10px;border:1px solid var(--border);border-radius:10px;background:#fff;}
textarea{min-width:260px}
.btn{padding:5px 10px;border:0;border-radius:10px;background:var(--primary);color:#fff;font-weight:300;cursor:pointer;font-size: 11px;}
.btn.secondary{background:#334155;}
.btn.danger{background:#dc2626}
.btn.ghost{background:#eef2ff;color:#1e3a8a}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:12px}
table{width:100%;border-collapse:collapse;margin-top:10px;min-width:980px}
th,td{padding:5px;border-bottom:1px solid var(--border);vertical-align:top;font-size:11px}
th{background:#f8fafc;text-align:left;position:sticky;top:0;z-index:1}
tr:hover td{background:#fafafa}
.pager{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:10px}
.pager .btn{padding:7px 10px}
.small{font-size:12px;color:var(--muted)}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:center;justify-content:center;padding:18px;z-index:50}
.modal.show{display:flex}
.modal .box{background:#fff;border-radius:16px;max-width:820px;width:100%;border:1px solid var(--border);box-shadow:0 20px 60px rgba(0,0,0,.2)}
.modal .hd{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;gap:10px;align-items:center}
.modal .bd{padding:14px 16px}
.modal .ft{padding:14px 16px;border-top:1px solid var(--border);display:flex;gap:10px;justify-content:flex-end}
.modal .hd .title{font-weight:900}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:920px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));} table{min-width:860px}}
@media (max-width:620px){.grid{grid-template-columns:repeat(1,minmax(0,1fr));}}
a.link{color:#1d4ed8;text-decoration:none;font-weight:800}
.due-soon{
  color:#d10000;
  font-weight:700;
}