h1 {
    text-align: center;
    font-size: 1.8rem;
    margin: 0.5rem 10px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
}

h1 span {
    display: flex;
    padding: 0 0.5rem;
}

.panel {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 12px 20px;
    background-color: #ffffff;
    border: 1px solid #ddd;
    font-family: 'Segoe UI', sans-serif;
    flex-wrap: wrap;
    margin: 10px 0;
    border-radius: 5px;
}

.form-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

label {
    font-weight: 600;
    color: #333;
}

select {
    padding: 6px 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    background-color: #f9f9f9;
    font-size: 14px;
}

select:focus {
    outline: none;
    border-color: #007bff;
}

input[type="checkbox"] {
    transform: scale(1.2);
}

.table-container {
    overflow-x: auto;
    width: 100%;
    margin-top: 10px;
    margin-bottom: 30px;
}

.table-view {
    border-collapse: separate;
    border-spacing: 0;
    min-width: 600px;
    margin: 0 auto;
}

.table-view th,
.table-view td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
    white-space: nowrap;
}

.table-view th {
    background-color: #f2f2f2;
    font-family: serif;
    font-weight: bold;
}

.table-view th:first-child {
    position: sticky;
    left: 0;
    z-index: 2;
}

.table-view tr td:first-child {
    text-align: center;
    background-color: #f9f9f9;
    font-family: serif;
    font-weight: bold;
    position: sticky;
    left: 0;
    z-index: 1;
}

.table-view thead {
    position: sticky;
    top: 0;
    z-index: 2;
}

footer {
    text-align: center;
    font-size: 14px;
    padding: 10px 0;
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #121212;
        color: #e0e0e0;
    }

    .panel {
        background-color: #1e1e1e;
        border-color: #333;
    }

    .form-group label {
        color: #e0e0e0;
    }

    select {
        background-color: #2c2c2c;
        color: #e0e0e0;
        border-color: #555;
    }

    select:focus {
        border-color: #66b0ff;
    }

    .table-container {
        background-color: transparent;
    }

    .table-view th,
    .table-view td {
        border-color: #444;
        background-color: #1e1e1e;
        color: #e0e0e0;
    }

    .table-view th {
        background-color: #2b2b2b;
        color: #ffffff;
    }

    .table-view th:first-child,
    .table-view tr td:first-child {
        background-color: #2a2a2a;
        color: #ffffff;
    }
}