* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 24px;
    font-family: Arial, sans-serif;
    background: #f6f7fb;
    color: #222;
}

h1 {
    margin-top: 0;
    color: #1f2937;
}

p {
    line-height: 1.5;
}

a {
    color: #2563eb;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.nav {
    background: #ffffff;
    border: 1px solid #ddd;
    padding: 14px 18px;
    margin-bottom: 24px;
    border-radius: 8px;
}

.nav a {
    margin-right: 12px;
    font-weight: 600;
}

.card {
    display: inline-block;
    vertical-align: top;
    width: 240px;
    min-height: 120px;
    background: #ffffff;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 18px;
    margin: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.card h3 {
    margin: 0 0 12px;
    font-size: 15px;
    color: #6b7280;
}

.card h2 {
    margin: 0;
    font-size: 32px;
    color: #111827;
}

form {
    background: #ffffff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
}

input,
select,
button {
    padding: 8px 10px;
    margin: 4px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
}

button {
    background: #2563eb;
    color: #ffffff;
    border: none;
    cursor: pointer;
    font-weight: 600;
}

button:hover {
    background: #1d4ed8;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
}

th {
    background: #1f2937;
    color: #ffffff;
    text-align: left;
    padding: 10px;
    font-size: 13px;
}

td {
    padding: 10px;
    border-bottom: 1px solid #e5e7eb;
    font-size: 13px;
    vertical-align: top;
}

tr:hover td {
    background: #f9fafb;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #dcfce7;
    color: #166534;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.pagination {
    margin-top: 20px;
}

.pagination a,
.pagination strong {
    display: inline-block;
    padding: 8px 12px;
    margin: 2px;
    border-radius: 6px;
    background: #ffffff;
    border: 1px solid #ddd;
}

.pagination strong {
    background: #2563eb;
    color: #ffffff;
    border-color: #2563eb;
}

.notice {
    background: #ffffff;
    border-left: 4px solid #2563eb;
    padding: 12px 16px;
    margin-bottom: 16px;
    border-radius: 6px;
}

.error {
    border-left-color: #dc2626;
}

.success {
    border-left-color: #16a34a;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    margin-right: 6px;
    color: white;
}

.badge-usage {
    background: #2563eb;
}

.badge-love {
    background: #db2777;
}

.badge-offer {
    background: #16a34a;
}