body {
    margin: 0;
    padding: 0;
    background: #0d1e33; /* глубокий фон как на сайте */
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    color: #C8D6F0;
}

.login-box {
    background: #1a2d4a; /* твой фирменный блок */
    padding: 35px 45px;
    border-radius: 14px;
    box-shadow: 0 6px 25px rgba(0,0,0,0.4);
    width: 340px;
}

.login-box h2 {
    margin-top: 0;
    margin-bottom: 25px;
    text-align: center;
    color: #C8D6F0;
    font-weight: 600;
}

.error {
    color: #ff6b6b;
    text-align: center;
    margin-bottom: 15px;
}

.login-box label {
    display: block;
    margin-bottom: 6px;
    color: #B4C4DD;
    font-size: 14px;
}

.login-box input {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 18px;
    border-radius: 6px;
    border: 1px solid #2c3e55;
    background: #0d1a26;
    color: #C8D6F0;
    font-size: 14px;
}

.login-box input:focus {
    outline: none;
    border-color: #0096FF;
}

.login-box button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(90deg, #0096FF, #0078FF);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    transition: 0.2s;
}

.login-box button:hover {
    opacity: 0.9;
}

.register-link {
    text-align: center;
    margin-top: 20px;
    color: #B4C4DD;
}

.register-link a {
    color: #0096FF;
    text-decoration: none;
    font-weight: 600;
}

.register-link a:hover {
    text-decoration: underline;
}