*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Tahoma,Arial,sans-serif;background:#f0f2f5;color:#1e293b;font-size:14px;line-height:1.6}
a{color:#1677ff;text-decoration:none}
a:hover{text-decoration:underline}
.layout{display:flex;min-height:100vh}
.sidebar{width:230px;background:#0f172a;color:#e2e8f0;padding:20px 0;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar h2{font-size:16px;padding:0 18px 16px;margin:0;border-bottom:1px solid #1e293b;font-weight:700}
.sidebar a{display:block;padding:12px 18px;color:#94a3b8;font-size:13.5px;transition:.15s}
.sidebar a:hover,.sidebar a.active{background:#1e293b;color:#fff;text-decoration:none}
.main{flex:1;padding:28px 32px;overflow:auto}
.main h1{font-size:22px;margin:0 0 20px;font-weight:800}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(155px,1fr));gap:14px;margin-bottom:24px}
.stat{background:#fff;border-radius:14px;padding:18px;border:1px solid #e5e7eb;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.stat span{font-size:12.5px;color:#64748b}
.stat b{display:block;font-size:26px;margin-top:6px;color:#1677ff;font-weight:800}
.panel{background:#fff;border-radius:14px;padding:22px;border:1px solid #e5e7eb;margin-bottom:18px;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.panel h2{font-size:16px;margin:0 0 16px;font-weight:700}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:11px 10px;border-bottom:1px solid #f1f5f9;text-align:right;vertical-align:middle}
th{background:#f8fafc;font-weight:700;color:#475569;font-size:12px}
tr:hover td{background:#fafbfc}
.flash{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:13.5px}
.flash-ok{background:#ecfdf3;color:#067647;border:1px solid #a6f4c5}
.flash-error{background:#fef3f2;color:#b42318;border:1px solid #fecdca}
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:700}
.badge-pending{background:#fff7ed;color:#c2410c}
.badge-processing{background:#eff6ff;color:#1d4ed8}
.badge-completed{background:#ecfdf3;color:#067647}
.badge-failed{background:#fef3f2;color:#b42318}
.badge-expired{background:#f4f4f5;color:#52525b}
label{display:block;font-size:13px;margin-bottom:5px;font-weight:700;color:#334155}
input[type=text],input[type=password],input[type=number],input[type=url],input[type=email],select,textarea{
  width:100%;padding:10px 13px;border:1px solid #d0d5dd;border-radius:10px;font-family:inherit;font-size:14px;margin-bottom:14px;background:#fff;transition:.15s
}
input:focus,select:focus,textarea:focus{outline:none;border-color:#1677ff;box-shadow:0 0 0 3px rgba(22,119,255,.12)}
textarea{min-height:80px;resize:vertical}
.btn{display:inline-block;border:0;border-radius:10px;padding:10px 18px;font-family:inherit;font-weight:700;font-size:13.5px;cursor:pointer;transition:.15s}
.btn-primary{background:#1677ff;color:#fff}
.btn-primary:hover{background:#0958d9}
.btn-danger{background:#b42318;color:#fff}
.btn-danger:hover{background:#912018}
.btn-sm{padding:6px 12px;font-size:12px}
.btn-outline{background:#fff;border:1px solid #d0d5dd;color:#344054}
.btn-outline:hover{background:#f8fafc}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-check{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.form-check input{width:auto;margin:0}
.form-check label{margin:0;font-weight:500}
.actions a,.actions form{display:inline-block;margin-left:6px}
code{direction:ltr;unicode-bidi:embed;font-size:12px;background:#f1f5f9;padding:2px 7px;border-radius:5px;font-family:Consolas,monospace}
.login-wrap{max-width:400px;margin:80px auto;padding:0 16px}
.login-card{background:#fff;border-radius:16px;padding:32px;border:1px solid #e5e7eb;box-shadow:0 8px 30px rgba(0,0,0,.06)}
.login-card h1{font-size:20px;margin-bottom:20px;text-align:center}
@media(max-width:768px){
  .layout{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;padding:12px 0}
  .sidebar h2{padding-bottom:10px}
  .form-row{grid-template-columns:1fr}
  .main{padding:18px 14px}
}