body {
    background: linear-gradient(135deg, #e0eafc 0%, #cfdef3 100%);
    min-height: 100vh;
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    background: #fff;
    padding: 2.5rem 2rem;
    border-radius: 1.2rem;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.18);
    max-width: 350px;
    width: 100%;
}

.login-container h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #2d3a4b;
    font-weight: 600;
}

.form-group {
    margin-bottom: 1.2rem;
}

label {
    display: block;
    margin-bottom: 0.4rem;
    color: #3a4a5d;
    font-size: 1rem;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid #bfc9d1;
    border-radius: 0.5rem;
    font-size: 1rem;
    background: #f7fafc;
    transition: border 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    border-color: #6c63ff;
    outline: none;
}

.login-btn {
    width: 100%;
    padding: 0.8rem;
    background: linear-gradient(90deg, #6c63ff 0%, #48c6ef 100%);
    color: #fff;
    border: none;
    border-radius: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 0.5rem;
}

.login-btn:hover {
    background: linear-gradient(90deg, #48c6ef 0%, #6c63ff 100%);
}

.messages {
    margin-bottom: 1rem;
}

.messages .error {
    color: #d8000c;
    background: #ffd2d2;
    padding: 0.7rem 1rem;
    border-radius: 0.4rem;
    margin-bottom: 0.5rem;
    font-size: 0.98rem;
}

@media (max-width: 480px) {
    .login-container {
        padding: 1.5rem 0.7rem;
        max-width: 95vw;
    }
}