* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    background:
        linear-gradient(
            rgba(0, 0, 0, 0.12),
            rgba(0, 0, 0, 0.12)
        ),
        url("../Colegio.jpg") center center / cover no-repeat fixed;
    font-family: Arial, Helvetica, sans-serif;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 430px;
    padding: 36px;
    background-color: rgba(255, 255, 255, 0.96);
    border-radius: 16px;
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.20);
}

.form-control {
    min-height: 46px;
}

.btn {
    min-height: 46px;
    font-weight: 600;
}

@media (max-width: 576px) {
    .login-card {
        padding: 24px;
    }

    .login-container {
        padding: 16px;
    }
}