*{box-sizing:border-box} body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f3f6fb;color:#1f2937}
a{text-decoration:none;color:inherit}.muted{color:#64748b}
.container{display:grid;grid-template-columns:270px 1fr;min-height:100vh}
.sidebar{background:#0f172a;color:#fff;padding:24px}
.brand{font-size:22px;font-weight:700;margin-bottom:8px}.brand-sub{color:#cbd5e1;font-size:13px;margin-bottom:28px}
.menu a{display:block;padding:12px 14px;border-radius:12px;margin-bottom:8px;color:#e2e8f0}.menu a.active,.menu a:hover{background:#1e293b}
.main{padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:24px;flex-wrap:wrap}
.title h1{margin:0;font-size:28px}.title p{margin:6px 0 0;color:#64748b}
.userbox{background:#fff;padding:12px 16px;border-radius:14px;box-shadow:0 4px 18px rgba(15,23,42,.08)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.card{background:#fff;padding:20px;border-radius:18px;box-shadow:0 4px 20px rgba(15,23,42,.06)}
.card .label{color:#64748b;font-size:14px;margin-bottom:10px}.card .value{font-size:30px;font-weight:700}
.grid-2{display:grid;grid-template-columns:1.25fr 1fr;gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.table-wrap,.form-wrap{background:#fff;border-radius:18px;box-shadow:0 4px 20px rgba(15,23,42,.06);overflow:hidden;margin-bottom:20px}
.section-head{padding:18px 20px;border-bottom:1px solid #e5e7eb;font-size:18px;font-weight:700}
table{width:100%;border-collapse:collapse} table th,table td{padding:12px 14px;border-bottom:1px solid #eef2f7;text-align:left;font-size:14px;vertical-align:top} table th{background:#f8fafc}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;padding:20px}.form-group{display:flex;flex-direction:column;gap:7px}.form-group.full{grid-column:1/-1}
input,select,textarea,button{font:inherit} input,select,textarea{width:100%;border:1px solid #dbe2ea;border-radius:12px;padding:12px 14px;background:#fff} textarea{min-height:100px;resize:vertical}
.btn{display:inline-block;border:0;border-radius:12px;padding:10px 14px;cursor:pointer;background:#0f172a;color:#fff}.btn-secondary{background:#475569}.btn-danger{background:#b91c1c}.btn-success{background:#15803d}
.actions{display:flex;gap:8px;flex-wrap:wrap}.badge{display:inline-block;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700}.success{background:#dcfce7;color:#166534}.danger{background:#fee2e2;color:#991b1b}.warning{background:#fef3c7;color:#92400e}.info{background:#dbeafe;color:#1d4ed8}
.flash{margin-bottom:18px;padding:14px 16px;border-radius:12px;font-weight:700}.flash.success{background:#dcfce7;color:#166534}.flash.error{background:#fee2e2;color:#991b1b}
.toolbar{padding:16px 20px;border-bottom:1px solid #eef2f7;background:#fbfdff}.stat-mini{background:#f8fafc;padding:16px;border-radius:16px}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#0f172a,#1e293b)}
.login-card{width:100%;max-width:420px;background:#fff;border-radius:20px;padding:30px;box-shadow:0 20px 50px rgba(0,0,0,.2)}
@media (max-width:1100px){.cards{grid-template-columns:repeat(2,1fr)}.grid-2,.grid-3{grid-template-columns:1fr}}
@media (max-width:850px){.container{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.main{padding:16px}}