*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:#f3f6fb;color:#162033}
.layout{display:flex;min-height:100vh}
.sidebar{width:240px;background:#111827;color:#fff;padding:24px 16px;display:flex;flex-direction:column;gap:10px}
.sidebar .brand{font-size:22px;font-weight:700;margin-bottom:18px}
.sidebar a{color:#cbd5e1;text-decoration:none;padding:10px 12px;border-radius:10px}
.sidebar a:hover{background:#1f2937;color:#fff}
.main{flex:1;padding:20px;overflow:auto}
.topbar{display:flex;justify-content:space-between;align-items:center;background:#fff;border-radius:14px;padding:16px 20px;box-shadow:0 6px 24px rgba(15,23,42,.06);margin-bottom:20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.card{background:#fff;border-radius:16px;padding:18px;box-shadow:0 6px 24px rgba(15,23,42,.06)}
.card h3{margin:0 0 10px}
.value{font-size:28px;font-weight:800}
.table-wrap{background:#fff;border-radius:16px;padding:18px;box-shadow:0 6px 24px rgba(15,23,42,.06);overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:12px;border-bottom:1px solid #e5e7eb;text-align:left;font-size:14px;vertical-align:top}
input[type=text],input[type=number],input[type=password],input[type=datetime-local],input[type=file],textarea,select{width:100%;padding:10px 12px;border:1px solid #cbd5e1;border-radius:10px;background:#fff}
textarea{min-height:120px;resize:vertical}
.btn{display:inline-block;padding:10px 16px;background:#2563eb;color:#fff;text-decoration:none;border:none;border-radius:10px;cursor:pointer}
.btn-secondary{background:#475569}
.btn-danger{background:#dc2626}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.alert{padding:12px 14px;border-radius:12px;margin-bottom:16px}
.alert-success{background:#dcfce7;color:#166534}
.alert-error{background:#fee2e2;color:#991b1b}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1d4ed8)}
.login-card{width:420px;max-width:92vw;background:#fff;border-radius:18px;padding:30px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.form-row{margin-bottom:14px}
.muted{color:#64748b;font-size:13px;line-height:1.7}
.pill{display:inline-block;padding:4px 10px;border-radius:999px;background:#dbeafe;color:#1d4ed8;font-size:12px}
.inline-form{display:inline-block;margin:0}
code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}
ul{margin:10px 0 0 18px}