:root {
  --bg:#0f172a;
  --card:#111827;
  --muted:#9ca3af;
  --primary:#3b82f6;
  --primary-contrast:#ffffff;
  --text:#e5e7eb;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Helvetica,Arial,sans-serif}
a{text-decoration:none;color:inherit}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:#0b1220;position:sticky;top:0;z-index:10}
.brand{font-weight:700;font-size:18px}
.nav{display:flex;gap:12px}
.content{max-width:1100px;margin:24px auto;padding:0 16px;display:grid;gap:24px}
.card{background:var(--card);border-radius:12px;padding:16px;box-shadow:0 10px 20px rgba(0,0,0,.3)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:900px){.grid-3{grid-template-columns:1fr}.grid-4{grid-template-columns:1fr}}
.stat{display:flex;flex-direction:column;gap:8px}
.stat-title{font-size:14px;color:var(--muted)}
.stat-value{font-size:28px;font-weight:700}
.form-vertical{display:flex;flex-direction:column;gap:12px}
.form-group{display:flex;flex-direction:column;gap:6px}
input,select{width:100%;padding:10px;border-radius:8px;border:1px solid #1f2937;background:#0b1220;color:var(--text)}
input::placeholder{color:#64748b}
.input-with-icon{position:relative}
.input-with-icon input{padding-right:42px}
.icon-btn{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:transparent;border:none;color:var(--muted);display:flex;align-items:center;justify-content:center;padding:6px;border-radius:8px;cursor:pointer}
.icon-btn:hover{background:#1f2937;color:var(--text)}
.icon-btn svg{width:20px;height:20px}
.icon-btn .eye-off{display:none}
.icon-btn.show .eye{display:none}
.icon-btn.show .eye-off{display:block}
.btn-primary{background:var(--primary);color:var(--primary-contrast);border:none;border-radius:8px;padding:10px 14px;cursor:pointer;transition:filter .2s}
.btn-secondary{background:#1f2937;color:var(--text);border:none;border-radius:8px;padding:10px 14px;cursor:pointer;transition:filter .2s}
.btn-primary:hover,.btn-secondary:hover{filter:brightness(1.1)}
.full{grid-column:1/-1}
.table-responsive{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:10px;text-align:left;border-bottom:1px solid #1f2937}
th{font-weight:600;color:var(--muted)}
.pagination{display:flex;align-items:center;gap:8px;justify-content:flex-end;margin-top:12px}
.pages{display:flex;gap:6px}
.pages .page{padding:8px 12px;border-radius:6px;background:#1f2937;cursor:pointer}
.pages .active{background:var(--primary);color:var(--primary-contrast)}
.container-center{min-height:100vh;display:grid;place-items:center;padding:16px}
.alert{background:#7f1d1d;color:#fecaca;padding:10px;border-radius:8px;margin-bottom:8px}
.card h1,.card h2{margin:0 0 12px 0;font-size:20px}
.muted{color:var(--muted);font-size:14px}
tbody tr{transition:background-color .15s ease}
tbody tr:nth-child(even){background-color:#0d1426}
tbody tr:hover{background-color:rgba(59,130,246,0.12)}
tbody tr:hover td{background-color:transparent}
tbody tr.editing{background-color:rgba(59,130,246,0.22);outline:1px solid rgba(59,130,246,0.6)}