.ehc-form-pro {
    max-width: 520px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid #eee;
    background: #ffffff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.ehc-form-row {
    margin-bottom: 15px;
}

.ehc-form-row label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 14px;
}

.ehc-form-row input,
.ehc-form-row select {
    width: 100%;
    padding: 8px 10px;
    border-radius: 6px;
    border: 1px solid #ddd;
    font-size: 14px;
    box-sizing: border-box;
}

.ehc-slot-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 5px;
}

.ehc-slot-item {
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid #ccc;
    cursor: pointer;
    background: #f7f7f7;
    font-size: 13px;
    transition: all 0.15s ease-in-out;
}

.ehc-slot-item:hover {
    border-color: #2d8cff;
}

.ehc-slot-selected {
    background: #2d8cff;
    color: #ffffff;
    border-color: #2d8cff;
}

.ehc-btn-submit {
    width: 100%;
    padding: 10px 15px;
    border: none;
    border-radius: 6px;
    background: #2d8cff;
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.15s ease-in-out;
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

.ehc-btn-submit:hover {
    opacity: 0.9;
}

.ehc-success {
    max-width: 520px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 10px;
    background: #f0fff4;
    border: 1px solid #c6f6d5;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.ehc-success h3 {
    margin-top: 0;
    margin-bottom: 10px;
}