* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f3b66, #123f6d, #0b2239);
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 430px;
    background: #ffffff;
    border-radius: 18px;
    padding: 34px;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.25);
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.logo {
    width: 86px;
    height: 86px;
    object-fit: contain;
    margin-bottom: 14px;
}

.login-header h1 {
    font-size: 24px;
    color: #0f3b66;
    margin-bottom: 6px;
}

.login-header p {
    font-size: 14px;
    color: #64748b;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
    padding: 12px;
    border-radius: 10px;
    font-size: 14px;
    margin-bottom: 18px;
    text-align: center;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: bold;
    color: #334155;
    margin-bottom: 7px;
}

.form-group input {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    font-size: 15px;
    outline: none;
    transition: 0.2s;
}

.form-group input:focus {
    border-color: #0f3b66;
    box-shadow: 0 0 0 3px rgba(15, 59, 102, 0.15);
}

button {
    width: 100%;
    border: none;
    background: #0f3b66;
    color: #ffffff;
    padding: 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.2s;
}

button:hover {
    background: #0b2d4f;
    transform: translateY(-1px);
}

.login-footer {
    margin-top: 22px;
    text-align: center;
    color: #64748b;
}

/* Tablets */
@media (max-width: 768px) {
    .login-card {
        max-width: 390px;
        padding: 28px;
    }

    .login-header h1 {
        font-size: 21px;
    }
}

/* Celulares */
@media (max-width: 480px) {
    .login-page {
        padding: 14px;
    }

    .login-card {
        padding: 24px 20px;
        border-radius: 14px;
    }

    .logo {
        width: 72px;
        height: 72px;
    }

    .login-header h1 {
        font-size: 19px;
    }

    .login-header p {
        font-size: 13px;
    }

    .form-group input {
        padding: 12px;
        font-size: 14px;
    }

    button {
        padding: 13px;
        font-size: 14px;
    }
}

/* Telas muito pequenas */
@media (max-width: 340px) {
    .login-card {
        padding: 20px 16px;
    }

    .login-header h1 {
        font-size: 17px;
    }
}