/* mainpage.css */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    margin: 0;
    padding: 20px;
    padding-top: 60px;
    background-color: #f7f8fc;
    color: #333;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    position: relative;
}

body.dark-mode {
    background-color: #1a1a1a;
    color: #e0e0e0;
}

#logo {
    display: block;
    margin: 0 auto 20px auto;
    width: 100px;
    height: auto;
}

.container {
    max-width: 800px;
    margin: 40px auto;
    background-color: #fff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.07);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

body.dark-mode .container {
    background-color: #2c2c2c;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
    transition: color 0.3s ease;
}

body.dark-mode h1 {
    color: #c8dae6;
}

.filter-button,
.pagination .page-number {
    padding: 8px 9px;
    margin: 4px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    text-decoration: none;
    display: inline-block;
    line-height: 1.2;
}

.pagination .page-number {
    padding: 8px 9px;
    font-size: 0.875rem;
}

.filter-button,
.pagination .page-number {
    background-color: #e9ecef;
    color: #495057;
    border-color: #dee2e6;
}

.filter-button:hover:not(:disabled),
.pagination .page-number:hover:not(:disabled) {
    background-color: #ced4da;
    border-color: #adb5bd;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.filter-button.active,
.pagination .page-number.active {
    background-color: #007bff;
    color: white;
    border-color: #007bff;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.3);
}
.filter-button.active:hover,
.pagination .page-number.active:hover {
    background-color: #0069d9;
    border-color: #0062cc;
    transform: translateY(0);
}

.filter-button:disabled,
.pagination .page-number:disabled {
    background-color: #f8f9fa;
    color: #adb5bd;
    border-color: #e9ecef;
    cursor: not-allowed;
    opacity: 0.7;
    transform: none;
    box-shadow: none;
}

body.dark-mode .filter-button,
body.dark-mode .pagination .page-number {
    background-color: #3a3a3a;
    color: #e0e0e0;
    border-color: #555;
}

body.dark-mode .filter-button:hover:not(:disabled),
body.dark-mode .pagination .page-number:hover:not(:disabled) {
    background-color: #4a4a4a;
    border-color: #666;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

body.dark-mode .filter-button.active,
body.dark-mode .pagination .page-number.active {
    background-color: #0056b3;
    color: white;
    border-color: #0056b3;
    box-shadow: 0 2px 8px rgba(0, 86, 179, 0.4);
}
body.dark-mode .filter-button.active:hover,
body.dark-mode .pagination .page-number.active:hover {
    background-color: #004c9a;
    border-color: #004588;
    transform: translateY(0);
}

body.dark-mode .filter-button:disabled,
body.dark-mode .pagination .page-number:disabled {
    background-color: #2a2a2a;
    color: #777;
    border-color: #444;
    cursor: not-allowed;
    opacity: 0.6;
    transform: none;
    box-shadow: none;
}


.filter-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 30px;
}

.pagination {
    text-align: center;
    margin-top: 30px;
}

.tweet-list {
    margin-bottom: 20px;
}

.tweet-container {
    margin-left: auto;
    margin-right: auto;
    max-width: 550px;
    margin-bottom: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

body.dark-mode .tweet-container {
    background-color: #333;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
body.dark-mode .twitter-tweet {
}


.status-message {
    text-align: center;
    padding: 20px;
    font-style: italic;
    color: #6c757d;
    transition: color 0.3s ease;
}

body.dark-mode .status-message {
    color: #9a9a9a;
}

#darkModeToggle {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

#darkModeToggle:hover {
    opacity: 0.8;
}


#contactButton {
    position: absolute;
        top: 20px;
        left: 20px;
        padding: 8px 15px;
        border-radius: 6px;
        border: 1px solid #ccc;
        background-color: #f0f0f0;
        color: #333;
        font-size: 0.9em;
        pointer-events: none;
        z-index: 1000;
        transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body.dark-mode #contactButton {
    background-color: #444;
    color: #f0f0f0;
    border-color: #555;
}