body {
    background: #f4f6f8;
    font-family: 'Segoe UI', Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

.login-container {
    background: #fff;
    padding: 2rem 2.5rem 2rem 2.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    width: 350px;
}

.login-container h2 {
    margin-bottom: 1.5rem;
    color: #2d3e50;
    text-align: center;
}

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

label {
    display: block;
    margin-bottom: 0.4rem;
    color: #34495e;
    font-weight: 500;
}

input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid #d1d5db;
    border-radius: 5px;
    font-size: 1rem;
    background: #f9fafb;
    transition: border 0.2s;
}

input[type="email"]:focus,
input[type="password"]:focus {
    border: 1.5px solid #1976d2;
    outline: none;
}

.btn-login {
    width: 100%;
    padding: 0.8rem;
    background: #1976d2;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-login:hover {
    background: #125ea2;
}

.error {
    color: #d32f2f;
    background: #fdecea;
    border: 1px solid #f8bbbc;
    padding: 0.7rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    text-align: center;
}

@media (max-width: 400px) {
    .login-container {
        width: 95vw;
        padding: 1.2rem;
    }
}