.header-gradient {
    background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    color: white;
    border-radius: 0 0 20px 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.tool-card {
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.btn-primary {
    background-color: #6366F1;
    border-color: #6366F1;
}

.btn-primary:hover {
    background-color: #4F46E5;
    border-color: #4F46E5;
}

.result-box {
    background-color: #F9FAFB;
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
    border: 1px solid #E5E7EB;
}

.word-count {
    background-color: #EEF2FF;
    border-radius: 8px;
    padding: 10px 15px;
    display: inline-block;
    margin-bottom: 15px;
    font-weight: 600;
    color: #4F46E5;
}

.extracted-text {
    white-space: pre-wrap;
    font-family: monospace;
    max-height: 400px;
    overflow-y: auto;
    padding: 15px;
    background-color: white;
    border: 1px solid #E5E7EB;
    border-radius: 6px;
}

.drop-zone {
    border: 2px dashed #6366F1;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
    background-color: #EEF2FF;
    cursor: pointer;
}

.drop-zone:hover, .drop-zone.dragover {
    background-color: #DDD6FE;
    border-color: #4F46E5;
}

.drop-zone-prompt {
    font-size: 1.2rem;
    color: #4B5563;
    margin-bottom: 15px;
}

.drop-zone-icon {
    font-size: 3rem;
    color: #6366F1;
    margin-bottom: 15px;
}

#pdf-file {
    display: none;
}