.main{

    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://constancias.edulabc.com.mx/images/fondo.avif?auto=format&fit=crop&w=1920&q=80');
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.container {
    width: 420px;
    max-width: 90%;
    margin: 20px;
    padding: 30px;
    font-family: "Inter", ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid rgb(203, 213, 225);
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: rgb(105, 177, 187);
}

.submit-btn {
    width: 100%;
    padding: 12px;
    background-color: white;
    border: 2px solid rgb(105, 177, 187);
    color: rgb(105, 177, 187);
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background-color: rgb(105, 177, 187);
    color: black;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 0.8125rem;
}

.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.popup.show {
    display: block;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.overlay.show {
    display: block;
}

@media (max-width: 480px) {
    .container {
        margin: 10px;
        padding: 20px;
    }
    
}