body {
    background-color: #f7f7f7;
    font-family: 'Segoe UI', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px; /* 모바일에서 여백 확보 */
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.login-box h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 24px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    font-weight: bold;
    margin-bottom: 6px;
    color: #555;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
}

.login-btn {
    width: 100%;
    padding: 12px;
    background-color: #6a1b9a;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

    .login-btn:hover {
        background-color: #5e1385;
    }

.signup-link {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
}

    .signup-link a {
        color: #007bff;
        text-decoration: none;
        margin: 0 5px;
    }

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

/* ✅ 모바일 최적화 */
@media (max-width: 768px) {
    body {
        height: auto;
        padding: 30px 20px;
    }

    .login-container {
        padding: 25px 20px;
        box-shadow: none;
        border-radius: 0;
    }

    .login-box h2 {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .login-btn {
        font-size: 15px;
        padding: 10px;
    }

    .signup-link {
        font-size: 13px;
    }
}