body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #1e1e2f, #121212);
    font-family: "NanumSquareRound", Arial, sans-serif;
    color: white;
}

.login-box {
    background: #1f1f2e;
    padding: 30px;
    border-radius: 15px;
    width: 300px;
    box-shadow: 0 0 30px rgba(0,0,0,0.5);
    text-align: center;
}

.login-box h1 {
    margin-bottom: 15px;
}

.login-box input {
    width: 80%;
    padding: 12px;
    margin-bottom: 15px;
    border: none;
    border-radius: 8px;
    background: #2c2c3a;
    color: white;
    outline: none;
}

.login-box input::placeholder {
    color: #aaa;
}

.login-box button {
    width: 60%;
    margin-top: 10px;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background: #4a90e2;
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: 0.2s;
}

.login-box button:hover {
    background: #357bd8;
}

#result {
    margin-top: 10px;
    color: #ff6b6b;
}