* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f7fb;
    color: #1f2937;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px 16px;
}

.page-header h1 {
    margin: 0 0 8px;
    font-size: 28px;
}

.page-header p {
    margin: 6px 0;
    color: #4b5563;
}

.card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 16px;
    margin-top: 16px;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

.table th,
.table td {
    text-align: left;
    padding: 12px 10px;
    border-bottom: 1px solid #e5e7eb;
    vertical-align: top;
}

.badge {
    display: inline-block;
    border-radius: 20px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 700;
}

.badge.ok {
    background: #dcfce7;
    color: #166534;
}

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

.toolbar {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.period-btn {
    border: 1px solid #d1d5db;
    background: #fff;
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
}

.period-btn.active {
    background: #2563eb;
    color: #fff;
    border-color: #2563eb;
}

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

a:hover {
    text-decoration: underline;
}