:root {
    --primary-color: #007bff;
    --text-color: #333;
    --bg-color: #f8f9fa;
    --font-family: 'Noto Kufi Arabic', sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    direction: rtl;
    text-align: right;
    line-height: 1.6;
}

#app {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 900;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 700;
}

input[type="text"],
input[type="number"],
input[type="tel"],
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 1rem;
    font-family: inherit;
}

textarea {
    resize: vertical;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 0;
}

.form-actions {
    margin-top: 30px;
    text-align: center;
}

button {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 700;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

/* Validation styles */
input:invalid:not(:placeholder-shown),
textarea:invalid:not(:placeholder-shown) {
    border-color: red;
}

/* Hide receipt container on screen */
#receipt {
    display: none;
}

/* Mobile adjustments */
@media (max-width: 600px) {
    #app {
        margin: 10px;
        padding: 15px;
    }
    button {
        width: 100%;
    }
}