body {
    font-family: Arial, sans-serif;
    padding: 20px;
    padding-bottom: 80px;
    background-color: #f8f9fa;
}

h1 {
    text-align: center;
    color: #003366;
    margin-bottom: 30px;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

select, #filterButton {
    width: 300px;
    height: 50px;
    font-size: 18px;
    padding: 8px 12px;
    border: 1px solid #ccc;
    border-radius: 8px;
}

#filterButton {
    background-color: #007bff;
    color: white;
    cursor: pointer;
}

#filterButton:hover {
    background-color: #0056b3;
}

.filter-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
    background: #ffffff;
    border: 1px solid #ccc;
    padding: 15px;
    border-radius: 10px;
}

.hidden {
    display: none;
}

#checkboxContainer {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 10px 0;
}

#checkboxContainer label {
    background-color: #007bff;
    color: white;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
}

#checkboxContainer label.inactive {
    background-color: white;
    color: #007bff;
    border: 1px solid #007bff;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background-color: white;
}

th, td {
    padding: 10px 15px;
    border: 1px solid #ddd;
    text-align: center;
}

th {
    background-color: #f1f1f1;
}

/* Sticky table headers */
table thead th {
    position: sticky;
    top: 0;
    background-color: #f1f1f1;
    z-index: 2;
}

.filter-close-button {
    display: block;
    margin-top: 10px;
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
    box-sizing: border-box;
}

.filter-close-button:hover {
    background-color: #45a049;
}

#announcementBar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #ffe58f;
    color: #8c6d1f;
    padding: 10px;
    text-align: center;
    font-weight: bold;
    font-size: 16px;
    border-top: 2px solid #d4b106;
    z-index: 1000;
}

/* Pop-up Duyuru Stilleri */
.popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.popup-overlay.show {
    display: flex;
}

.popup-content {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.popup-content h3 {
    margin-top: 0;
    color: #003366;
    font-size: 24px;
}

.popup-content p {
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    margin: 20px 0;
}

.popup-close-button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

.popup-close-button:hover {
    background-color: #0056b3;
}