.upload-section {
    max-width: 900px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 3rem;
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.icon-wrapper i {
    font-size: 2.5rem;
    color: white;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--secondary-color);
}

.upload-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.upload-area {
    border: 2px dashed var(--primary-color);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    background: #f8faff;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-area:hover {
    border-color: var(--primary-dark);
    background: #f0f7ff;
    transform: translateY(-2px);
}

.upload-area.dragover {
    border-color: var(--success-color);
    background: #f0fdf4;
}

.upload-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-content {
    pointer-events: none;
}

.upload-icon i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.upload-subtitle {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.upload-info .badge {
    margin: 0 0.25rem;
}

.file-preview {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--light-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.preview-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.file-details {
    flex: 1;
}

.file-name {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.file-size {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.upload-actions {
    margin-top: 2rem;
}

.process-steps {
    margin-top: 4rem;
}

.step-card {
    background: white;
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
    height: 100%;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.step-icon i {
    font-size: 1.5rem;
    color: white;
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.75rem;
}

.step-description {
    color: var(--secondary-color);
    font-size: 0.9rem;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .upload-area {
        padding: 2rem 1rem;
        min-height: 160px;
    }
    
    .upload-icon i {
        font-size: 2.5rem;
    }
    
    .upload-title {
        font-size: 1.1rem;
    }
    
    .step-card {
        margin-bottom: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
}