.tool-container {
    max-width: 800px;
    margin: 60px auto;
    padding: 0 20px;
}

.tool-header {
    text-align: center;
    margin-bottom: 40px;
}

.tool-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.tool-header p {
    color: #6b778c;
}

.upload-card {
    background: #ffffff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid #dfe1e6;
}

.download-template {
    text-align: right;
    margin-bottom: 20px;
}

.drop-zone {
    border: 2px dashed #0052cc;
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    background: #f4f5f7;
    transition: all 0.3s ease;
}

.drop-zone:hover, .drop-zone.drag-over {
    background: #ebf2ff;
    border-color: #0043a4;
}

.upload-icon {
    font-size: 3.5rem;
    color: #0052cc;
    margin-bottom: 15px;
}

.file-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #eaf6ed;
    color: #107c41;
    padding: 12px 20px;
    border-radius: 6px;
    margin-top: 20px;
    font-weight: 500;
}

.remove-btn {
    background: none;
    border: none;
    color: #e52521;
    cursor: pointer;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
    margin-top: 20px;
    padding: 15px;
    font-size: 1.1rem;
}

.primary-btn:disabled {
    background-color: #a5adba;
    cursor: not-allowed;
}

.status-box {
    margin-top: 20px;
    padding: 15px;
    border-radius: 6px;
    text-align: center;
    font-weight: 500;
}
.status-box.success { background: #eaf6ed; color: #107c41; }
.status-box.error { background: #fdeaea; color: #e52521; }