body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;

    background: radial-gradient(circle at center, #1a0000 0%, #000000 70%);
    font-family: monospace;
    color: #f5f5f5;
}

.login-box {
    background: rgba(10, 0, 0, 0.85);
    border: 1px solid #8b0000;
    padding: 30px;
    width: 320px;

    box-shadow:
        0 0 20px rgba(255,0,0,0.3),
        inset 0 0 10px rgba(0,0,0,0.8);
}

.login-title {
    text-align: center;
    margin-bottom: 20px;
    color: #ff3b3b;
    letter-spacing: 2px;
}

.login-box input {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;

    background: #0a0a0a;
    border: 1px solid #550000;
    color: #fff;
}

.login-box input:focus {
    outline: none;
    border-color: #ff3b3b;
    box-shadow: 0 0 5px #ff3b3b;
}

.login-box button {
    width: 100%;
    padding: 10px;

    background: linear-gradient(180deg, #8b0000, #2a0000);
    border: 1px solid #ff3b3b;
    color: #fff;

    cursor: pointer;
    text-transform: uppercase;
}

.login-box button:hover {
    background: linear-gradient(180deg, #ff3b3b, #5a0000);
}