body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f7fb;
}

.container {
    width: 95%;
    max-width: 1200px;
    margin: 30px auto;
}

.card {
    background: #fff;
    padding: 20px;
    border-radius: 14px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}

h1, h2, h3 {
    margin-top: 0;
}

input, select, button {
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    margin-bottom: 14px;
    border: 1px solid #ddd;
    border-radius: 10px;
    box-sizing: border-box;
}

button {
    background: #162961;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background: #0f1d47;
}

a {
    text-decoration: none;
    color: #162961;
}

.nav {
    background: #162961;
    padding: 15px 25px;
}

.nav a {
    color: white;
    margin-right: 15px;
    font-weight: bold;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 12px;
    border-bottom: 1px solid #eee;
    text-align: left;
}

.badge {
    padding: 6px 10px;
    border-radius: 20px;
    font-size: 12px;
    color: #fff;
}

.badge.active { background: #28a745; }
.badge.inactive { background: #dc3545; }
.badge.pending { background: #ffc107; color: #000; }
.badge.paid { background: #28a745; }
.badge.failed { background: #dc3545; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(220px,1fr));
    gap: 20px;
}

.stat {
    background: white;
    padding: 20px;
    border-radius: 14px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.08);
}

.login-box {
    max-width: 420px;
    margin: 80px auto;
}

.small {
    font-size: 13px;
    color: #666;
}

.success {
    color: green;
    margin-bottom: 10px;
}

.error {
    color: red;
    margin-bottom: 10px;
}