:root{
  --bg:#f3f4f6;--text:#1f2937;--text-muted:#6b7280;--text-heading:#111827;
  --card-bg:#fff;--border:#e5e7eb;--input-border:#d1d5db;
  --nav-bg:#1e293b;--nav-text:#e2e8f0;
  --primary:#2563eb;--primary-hover:#1d4ed8;
  --danger:#dc2626;--success:#16a34a;--warning:#f59e0b;
  --table-header:#f9fafb;--hover-bg:#f9fafb;
  --shadow:0 1px 3px rgba(0,0,0,.08);
}
[data-theme="dark"]{
  --bg:#0f172a;--text:#e2e8f0;--text-muted:#94a3b8;--text-heading:#f1f5f9;
  --card-bg:#1e293b;--border:#334155;--input-border:#475569;
  --nav-bg:#020617;--nav-text:#cbd5e1;
  --table-header:#1e293b;--hover-bg:#334155;
  --shadow:0 1px 3px rgba(0,0,0,.3);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:20px}
.navbar{background:var(--nav-bg);padding:12px 24px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.navbar a{color:var(--nav-text);font-size:.9rem}
.navbar a:hover{color:white;text-decoration:none}
.nav-brand{display:flex;align-items:center;gap:12px}
.nav-brand a{font-weight:700;font-size:1.1rem;color:white!important}
.hamburger{display:none;background:none;border:none;color:white;font-size:1.4rem;cursor:pointer}
.nav-links{display:flex;gap:16px;flex:1}
.nav-user{font-size:.85rem;color:#94a3b8;display:flex;align-items:center;gap:8px}
.nav-user a{color:#fbbf24}
.card{background:var(--card-bg);border-radius:8px;padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}
h1,h2,h3{margin-bottom:12px;color:var(--text-heading)}
h1{font-size:1.5rem}
.table-responsive{overflow-x:auto}
table{width:100%;border-collapse:collapse;background:var(--card-bg);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:.88rem}
th{background:var(--table-header);font-weight:600;color:var(--text)}
tr:hover{background:var(--hover-bg)}
input,select,textarea{padding:8px 12px;border:1px solid var(--input-border);border-radius:6px;font-size:.9rem;width:100%;background:var(--card-bg);color:var(--text)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(37,99,235,.15)}
button,.btn{padding:8px 16px;border:none;border-radius:6px;background:var(--primary);color:white;font-size:.9rem;cursor:pointer;font-weight:500;text-decoration:none;display:inline-block}
button:hover,.btn:hover{background:var(--primary-hover);text-decoration:none}
.btn-sm{padding:4px 10px;font-size:.8rem}
.btn-active{background:var(--primary);color:white}
.btn-danger{background:var(--danger)}.btn-danger:hover{background:#b91c1c}
.btn-success{background:var(--success)}.btn-success:hover{background:#15803d}
.btn-secondary{background:var(--text-muted)}.btn-secondary:hover{background:#4b5563}
.alert{padding:12px 16px;border-radius:6px;margin-bottom:16px;font-size:.9rem}
.alert-success{background:#d1fae5;color:#065f46}
.alert-error{background:#fee2e2;color:#991b1b}
.alert-warning{background:#fef3c7;color:#92400e}
[data-theme="dark"] .alert-success{background:#064e3b;color:#6ee7b7}
[data-theme="dark"] .alert-error{background:#450a0a;color:#fca5a5}
[data-theme="dark"] .alert-warning{background:#451a03;color:#fcd34d}
.login-card{background:var(--card-bg);padding:32px;border-radius:12px;width:340px;margin:80px auto;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.login-card h2{margin-bottom:16px}
.login-card input{margin-bottom:12px}
.login-card button{width:100%}
.status-badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:.78rem;font-weight:600;color:white}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-bottom:20px}
.stat-card{background:var(--card-bg);border-radius:8px;padding:16px;text-align:center;box-shadow:var(--shadow);cursor:pointer;transition:transform .15s}
.stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.12)}
.stat-card .count{font-size:2rem;font-weight:700}
.stat-card .label{font-size:.85rem;color:var(--text-muted);margin-top:4px}
.filters{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap;align-items:end}
.filters label{font-size:.8rem;color:var(--text-muted)}
.filters input,.filters select{width:auto;min-width:150px}
.inline-form{display:flex;gap:8px;align-items:end;flex-wrap:wrap}
.inline-form input,.inline-form select{width:auto;min-width:120px}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.85rem;font-weight:500;margin-bottom:4px;color:var(--text)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.timeline{border-left:3px solid var(--border);padding-left:20px;margin-top:12px}
.timeline-item{position:relative;padding-bottom:20px}
.timeline-item::before{content:"";position:absolute;left:-26px;top:4px;width:12px;height:12px;border-radius:50%;border:2px solid var(--primary);background:var(--card-bg)}
.timeline-item .time{font-size:.78rem;color:var(--text-muted)}
.timeline-item .detail{font-size:.9rem;margin-top:2px}
.pagination{display:flex;gap:8px;margin-top:16px;justify-content:center}
.meta-row{display:flex;gap:8px;margin-bottom:8px;align-items:center}
.meta-row input{flex:1}
.meta-row button{flex-shrink:0}
.bulk-action-bar{position:sticky;bottom:0;background:var(--nav-bg);padding:12px 20px;border-radius:8px 8px 0 0;box-shadow:0 -2px 8px rgba(0,0,0,.15);color:white;margin-top:16px}
.bulk-action-bar select,.bulk-action-bar input{color:var(--text);min-width:140px}

/* Mobile responsive */
@media(max-width:768px){
  .hamburger{display:block}
  .nav-links{display:none;width:100%;flex-direction:column;gap:8px;padding-top:12px}
  .nav-links.open{display:flex}
  .nav-user{width:100%;justify-content:center;margin-top:8px}
  .navbar{padding:12px 16px;gap:8px}
  .container{padding:12px}
  .form-row{grid-template-columns:1fr}
  .inline-form{flex-direction:column;align-items:stretch}
  .inline-form input,.inline-form select{width:100%;min-width:auto}
  .filters{flex-direction:column}
  .filters input,.filters select{width:100%;min-width:auto}
  .grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}
  .stat-card .count{font-size:1.4rem}
  table{font-size:.82rem}
  th,td{padding:8px 6px}
  button,.btn{min-height:44px}
  input,select,textarea{min-height:44px}
  .login-card{width:90%;margin:40px auto;padding:24px}
}

/* Searchable select dropdown */
.ss-wrap{position:relative;display:inline-block;min-width:180px}
.ss-display{padding:6px 28px 6px 10px;border:1px solid var(--border);border-radius:4px;cursor:pointer;background:var(--bg);color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ss-display::after{content:'▾';position:absolute;right:10px;top:50%;transform:translateY(-50%);pointer-events:none}
.ss-open .ss-display{border-color:var(--primary,#3b82f6);box-shadow:0 0 0 2px rgba(59,130,246,.15)}
.ss-dropdown{position:absolute;top:100%;left:0;right:0;z-index:1000;background:var(--bg);border:1px solid var(--border);border-radius:4px;box-shadow:0 4px 12px rgba(0,0,0,.15);margin-top:4px;min-width:220px}
.ss-search{width:100%;padding:8px 10px;border:none;border-bottom:1px solid var(--border);outline:none;font-size:.9rem;box-sizing:border-box;background:var(--bg);color:var(--text)}
.ss-list{max-height:200px;overflow-y:auto}
.ss-item{padding:6px 10px;cursor:pointer;font-size:.85rem}
.ss-item:hover{background:var(--primary,#3b82f6);color:#fff}
.ss-item.ss-active{background:rgba(59,130,246,.1);font-weight:600}