body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.main-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.upload-area {
    border: 3px dashed #dee2e6;
    border-radius: 15px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: #667eea;
    background-color: rgba(102, 126, 234, 0.05);
}

.upload-area.dragover {
    border-color: #667eea;
    background-color: rgba(102, 126, 234, 0.1);
}

.tweet-container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid #e9ecef;
}

.tweet-embed {
    border-radius: 15px;
    overflow: hidden;
}

.navigation-buttons {
    gap: 10px;
}

.btn-custom {
    border-radius: 25px;
    padding: 10px 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.stats-badge {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 600;
}

.loading-spinner {
    display: none;
}

.progress-container {
    display: none;
}

.error-message {
    display: none;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    border-radius: 10px;
    padding: 15px;
}

.file-info {
    background: #e3f2fd;
    border: 1px solid #bbdefb;
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
}

.hidden {
    display: none !important;
}

.tweet-embed-wrapper {
    position: relative;
    min-height: 0;
}

.tweet-loading {
    text-align: center;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 15px;
    border: 2px dashed #dee2e6;
}

.tweet-embed-content {
    display: block;
}

.tweet-embed-content .twitter-tweet {
    margin: 0 auto !important;
    border-radius: 15px !important;
    overflow: hidden !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1) !important;
}

.tweet-fallback-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 1px solid #e9ecef;
    padding: 20px;
}

.tweet-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    gap: 12px;
}

.tweet-avatar {
    font-size: 2.5rem;
    color: #667eea;
}

.tweet-user-info {
    flex: 1;
}

.tweet-username {
    font-weight: 600;
    color: #333;
    font-size: 1.1rem;
}

.tweet-timestamp {
    color: #6c757d;
    font-size: 0.9rem;
}

.tweet-platform {
    font-size: 1.2rem;
    color: #000;
}

.tweet-content {
    margin-bottom: 15px;
}

.tweet-text {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #333;
    margin: 0;
}

.tweet-actions {
    text-align: right;
}

.tweet-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.navigation-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid #dee2e6;
    background: white;
    color: #6c757d;
    font-size: 1.2rem;
    z-index: 10;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.navigation-arrow:hover:not(:disabled) {
    background: #f8f9fa;
    border-color: #adb5bd;
    color: #495057;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.navigation-arrow:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.navigation-arrow-left {
    left: -25px;
}

.navigation-arrow-right {
    right: -25px;
}

@media (max-width: 768px) {
    .navigation-arrow {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .navigation-arrow-left {
        left: -20px;
    }
    
    .navigation-arrow-right {
        right: -20px;
    }
}

.usage-section .card {
    border: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 15px;
}

.usage-section .card-header {
    border-bottom: 1px solid #e9ecef;
    border-radius: 15px 15px 0 0 !important;
}

.usage-section .list-unstyled li {
    padding: 8px 0;
    border-bottom: 1px solid #f8f9fa;
}

.usage-section .list-unstyled li:last-child {
    border-bottom: none;
}

.usage-section code {
    background: #f8f9fa;
    color: #e83e8c;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

.usage-section .alert {
    border-radius: 10px;
    border: none;
}

.footer-credit {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-credit p {
    color: white;
    font-weight: 500;
    margin: 0;
}

.credit-link {
    color: #ffd700;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 4px 8px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
}

.credit-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.credit-link i {
    color: #ffd700;
}

.credit-link:hover i {
    color: #fff;
} 