/* Main Container */
.pdf-tools-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Tool Grid */
.pdf-tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

/* Tool Cards */
.pdf-tool-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    border: 2px solid #e0e0e0;
    transition: all 0.3s ease;
    cursor: pointer;
}

.pdf-tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    border-color: #4a6bff;
}

.tool-icon {
    font-size: 40px;
    margin-bottom: 10px;
}

.pdf-tool-card h3 {
    color: #4a6bff;
    margin-bottom: 5px;
}

.pdf-tool-card p {
    color: #666;
    font-size: 14px;
}

/* Upload Area */
.pdf-upload-box {
    border: 2px dashed #aaa;
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    margin: 20px 0;
    transition: all 0.3s ease;
    cursor: pointer;
}

.pdf-upload-box:hover {
    border-color: #4a6bff;
    background: rgba(74, 107, 255, 0.05);
}

/* Progress Bar */
.progress-bar {
    height: 8px;
    background: #f0f0f0;
    border-radius: 4px;
    margin: 20px 0;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: #4a6bff;
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Buttons */
.pdf-process-btn, .download-btn {
    background: #4a6bff;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    margin: 10px 5px;
    transition: background 0.3s ease;
}

.pdf-process-btn:hover, .download-btn:hover {
    background: #3a5bef;
}

.new-file-btn, .try-again-btn {
    background: #f0f0f0;
    color: #333;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    margin: 10px 5px;
    transition: background 0.3s ease;
}

/* Ad Spaces */
.pdf-ad-space {
    margin: 30px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    text-align: center;
    border: 1px dashed #ccc;
}

.ad-placeholder {
    padding: 30px;
    background: #e9ecef;
    color: #666;
    border-radius: 4px;
}

/* Section Title */
.pdf-section-title {
    text-align: center;
    color: #4a6bff;
    padding: 15px;
    background: rgba(74, 107, 255, 0.1);
    border-radius: 8px;
    border: 2px solid #4a6bff;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .pdf-tool-grid {
        grid-template-columns: 1fr;
    }
    
    .pdf-upload-box {
        padding: 30px 15px;
    }
}