@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700&display=swap');

body {
    font-family: Arial, sans-serif;
    background: #f2f2f2;
    margin: 0;
    padding: 0;
}
.container {
    max-width: 400px;
    margin: 40px auto;
    background: #fff;
    padding: 24px 32px 32px 32px;
    border-radius: 12px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}
h1 {
    text-align: center;
    color: #333;
    margin-bottom: 24px;
}
form label {
    display: block;
    margin-bottom: 6px;
    color: #444;
    font-weight: 500;
}
form input, form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 16px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
}
form button {
    width: 100%;
    padding: 12px;
    background: #007bff;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.2s;
}
form button:hover {
    background: #0056b3;
}
#message {
    margin-top: 16px;
    text-align: center;
    font-weight: 500;
    color: #28a745;
}
@media (max-width: 500px) {
    .container {
        padding: 16px 8px 24px 8px;
    }
    h1 {
        font-size: 1.3rem;
    }
}
.intro {
    font-family: 'Montserrat', Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: #333;
    font-size: 1.18rem;
    font-weight: 700;
    background: linear-gradient(90deg, #f8ffae 0%, #43c6ac 100%);
    border: 2px solid #43c6ac;
    box-shadow: 0 4px 24px rgba(67,198,172,0.18);
    border-radius: 16px;
    padding: 18px 18px 18px 18px;
    margin-bottom: 28px;
    letter-spacing: 0.7px;
    text-shadow: 0 2px 8px rgba(67,198,172,0.08);
    transition: transform 0.2s, box-shadow 0.2s, background 0.3s;
}
.intro::before {
    content: '\1F4E2'; /* icon loa thông báo */
    font-size: 1.5em;
    margin-right: 6px;
}
.intro:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 32px rgba(67,198,172,0.22);
    background: linear-gradient(90deg, #43c6ac 0%, #f8ffae 100%);
}
input[type="tel"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
    min-width: 0;
    height: 42px;
}
.iti {
    width: 100%;
}
.iti--allow-dropdown input[type="tel"] {
    padding-left: 48px !important;
}