*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#f5f7fb;color:#172033}
a{color:#2457d6;text-decoration:none}
.app-shell{min-height:100vh;display:flex}
.sidebar{width:240px;background:#101827;color:#fff;padding:24px 18px;display:flex;flex-direction:column}
.brand{font-size:20px;font-weight:800;margin-bottom:34px}
.brand span{display:block;color:#8fa2c4;font-size:12px;font-weight:500;margin-top:3px}
.sidebar nav{display:flex;flex-direction:column;gap:6px}
.sidebar nav a,.sidebar-bottom a{color:#cbd5e1;padding:11px 12px;border-radius:8px}
.sidebar nav a:hover,.sidebar-bottom a:hover{background:#1d293b;color:#fff}
.sidebar-bottom{margin-top:auto}
.user-mini{padding:12px;color:#fff;margin-bottom:8px}
.user-mini small{color:#93a4bd}
.main-content{flex:1;padding:0 34px 40px}
.main-content.full{max-width:100%;padding:0}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:24px 0}
.topbar h1{margin:0;font-size:25px}
.topbar-user{font-size:14px;color:#667085}
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:24px}
.card{background:#fff;border:1px solid #e6eaf0;border-radius:12px;padding:20px;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.stat-label{font-size:13px;color:#667085}
.stat-value{font-size:30px;font-weight:750;margin-top:7px}
.panel{background:#fff;border:1px solid #e6eaf0;border-radius:12px;padding:22px;margin-bottom:20px}
.panel h2{font-size:18px;margin:0 0 16px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.form-group{margin-bottom:15px}
label{display:block;font-size:13px;font-weight:650;margin-bottom:7px}
input,select,textarea{width:100%;border:1px solid #d0d5dd;border-radius:8px;padding:10px 12px;font:inherit;background:#fff}
textarea{min-height:100px;resize:vertical}
.btn{display:inline-block;border:0;border-radius:8px;padding:10px 15px;font-weight:650;cursor:pointer}
.btn-primary{background:#2457d6;color:#fff}
.btn-secondary{background:#eef2f7;color:#26354d}
.btn-danger{background:#c92a2a;color:#fff}
.actions{display:flex;gap:8px;align-items:center}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px;border-bottom:1px solid #edf0f4;font-size:14px;vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:#667085}
.badge{display:inline-block;border-radius:999px;padding:4px 9px;background:#eef2f7;color:#475467;font-size:12px;font-weight:700}
.badge-blue{background:#e7efff;color:#2457d6}
.badge-yellow{background:#fff4d6;color:#8a5b00}
.badge-green{background:#e5f7ed;color:#147a47}
.badge-red{background:#fde8e8;color:#b42318}
.alert{padding:12px 15px;border-radius:8px;margin:15px 0}
.alert.success{background:#e8f7ee;color:#146c43}
.alert.error{background:#fdecec;color:#a61b1b}
.alert.warning{background:#fff6dd;color:#7a5600}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:100%;max-width:430px;background:#fff;border:1px solid #e6eaf0;border-radius:14px;padding:30px;box-shadow:0 10px 30px rgba(16,24,40,.08)}
.login-card h1{margin:0 0 6px}
.muted{color:#667085;font-size:13px}
.empty{padding:28px;text-align:center;color:#667085}
.notice{padding:13px 15px;background:#eef4ff;border:1px solid #d6e4ff;border-radius:8px;color:#254b8f}
@media(max-width:900px){.sidebar{width:190px}.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.app-shell{display:block}.sidebar{width:auto}.card-grid,.form-grid{grid-template-columns:1fr}.main-content{padding:0 16px 30px}}