/* ========== Main App Styles (Hauptseite) ========== */
body.main-app {
    background: white;
    overflow: hidden;
    padding: 0;
}

.header {
    background: white;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
    margin: 0;
}

.product-selector {
    display: flex;
    align-items: center;
    gap: 15px;
}

.product-selector label {
    font-size: 14px;
    font-weight: 500;
    color: #34495e;
}

.product-selector select {
    padding: 10px 20px;
    font-size: 15px;
    border-radius: 6px;
    border: 2px solid #ecf0f1;
    background: white;
    cursor: pointer;
    transition: border-color 0.3s ease;
    width: auto;
}

.product-selector select:focus {
    outline: none;
    border-color: #3498db;
}

iframe {
    width: 100%;
    height: calc(100vh - 80px);
    border: none;
}