/* Reset */
 body, html {
    margin: 0;
    padding: 0;
    font-family: 'Sukhumvit', Arial, sans-serif;
    background-size: cover;
    background-position: center;
    background-repeat: repeat;
    background-attachment: fixed;
    min-height: 100vh;
    color: #333;
    font-size: 32px; /* base */
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    max-width: 60%;
    height: 100%;
    margin: 0 auto;
}

/* Section banner */
.section {
    text-align: center;
    margin-bottom: 20px;
}

.section img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.section .text {
    margin-top: 16px;
}

.section h1 {
    font-size: 1.6rem;
    margin-bottom: 8px;
    color: #1E387F;
}

.section p {
    font-size: 1rem;
    line-height: 1.5;
}

/* Form styling */
form {
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    margin-bottom: 20px;
}

form input[type="tel"],
form input[type="number"],
form input[type="text"] {
    width: 90%;
    padding: 14px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    outline: none;
    margin-bottom: 10px;
}

form input[type="tel"]:focus,
form input[type="number"]:focus,
form input[type="text"]:focus {
    border-color: #1E387F;
    box-shadow: 0 0 4px rgba(30, 56, 127, 0.4);
}

form .error {
    font-size: 0.9rem;
    color: red;
    margin-bottom: 8px;
}

form button {
    width: 100%;
    padding: 14px;
    font-size: 1.1rem;
    font-weight: bold;
    background: #1E387F;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
}

form button:hover {
    background: #15295b;
}

/* Footer content */
.content-below {
    font-size: 0.9rem;
    color: #555;
    text-align: center;
    margin-top: 10px;
}

.error { color: red; margin-top: 5px; }

/* Responsive */
@media (max-width: 480px) {
    .section h1 {
        font-size: 1.4rem;
    }

    .section p {
        font-size: 0.95rem;
    }

    form {
        padding: 16px;
    }

    form button {
        font-size: 1rem;
    }
}